425 lines
14 KiB
C#
425 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace AIMS.OremrUserControl
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{
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public partial class ComCheckBoxList : UserControl
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{
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private TextBox tbSelectedValue;
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private ButtonS btnSelect;//下拉箭头
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private LabelS lbGrip;//此LABEL用于设置可以拖动下拉窗体变化
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public CheckedListBox checkListBox;
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private Label lbSelectAll;//全选
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private Label lbSelectNo;//取消
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private Form frmCheckList;
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private Panel pnlBack;
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private Panel pnlCheck;
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private System.Drawing.Point DragOffset; //用于记录窗体大小变化的位置
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//单击列表项状态更改事件
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public delegate void CheckBoxListItemClick(object sender, ItemCheckEventArgs e);
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public event CheckBoxListItemClick ItemClick;
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public ComCheckBoxList()
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{
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InitializeComponent();
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this.Name = "comBoxCheckBoxList";
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this.Layout += new LayoutEventHandler(ComCheckBoxList_Layout);
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//生成控件
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tbSelectedValue = new TextBox();
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tbSelectedValue.BorderStyle = BorderStyle.None;
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//下拉箭头
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this.btnSelect = new ButtonS();
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btnSelect.FlatStyle = FlatStyle.Flat;
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btnSelect.Click += new EventHandler(btnSelect_Click);
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//全选
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this.lbSelectAll = new Label();
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lbSelectAll.BackColor = Color.Transparent;
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lbSelectAll.Text = "全选";
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lbSelectAll.Size = new Size(40, 20);
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lbSelectAll.ForeColor = Color.Blue;
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lbSelectAll.Cursor = Cursors.Hand;
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lbSelectAll.TextAlign = ContentAlignment.MiddleCenter;
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lbSelectAll.Click += new EventHandler(lbSelectAll_Click);
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//取消
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lbSelectNo = new Label();
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lbSelectNo.BackColor = Color.Transparent;
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lbSelectNo.Text = "取消";
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lbSelectNo.Size = new Size(40, 20);
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lbSelectNo.ForeColor = Color.Blue;
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lbSelectNo.Cursor = Cursors.Hand;
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lbSelectNo.TextAlign = ContentAlignment.MiddleCenter;
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lbSelectNo.Click += new EventHandler(lbSelectNo_Click);
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//生成checkboxlist
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this.checkListBox = new CheckedListBox();
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checkListBox.BorderStyle = BorderStyle.None;
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checkListBox.Location = new Point(0, 0);
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checkListBox.CheckOnClick = true;
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checkListBox.ScrollAlwaysVisible = true;
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checkListBox.LostFocus += new EventHandler(checkListBox_LostFocus);
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checkListBox.ItemCheck += new ItemCheckEventHandler(checkListBox_ItemCheck);
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//窗体
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frmCheckList = new Form();
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frmCheckList.FormBorderStyle = FormBorderStyle.None;
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frmCheckList.StartPosition = FormStartPosition.Manual;
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frmCheckList.BackColor = SystemColors.Control;
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frmCheckList.ShowInTaskbar = false;
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//可拖动窗体大小变化的LABEL
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lbGrip = new LabelS();
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lbGrip.Size = new Size(9, 18);
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lbGrip.BackColor = Color.Transparent;
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lbGrip.Cursor = Cursors.SizeNWSE;
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lbGrip.MouseDown += new MouseEventHandler(lbGrip_MouseDown);
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lbGrip.MouseMove += new MouseEventHandler(lbGrip_MouseMove);
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//panel
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pnlBack = new Panel();
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pnlBack.BorderStyle = BorderStyle.Fixed3D;
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pnlBack.BackColor = Color.White;
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pnlBack.AutoScroll = false;
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//
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pnlCheck = new Panel();
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pnlCheck.BorderStyle = BorderStyle.FixedSingle;
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pnlCheck.BackColor = Color.White;
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SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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SetStyle(ControlStyles.ResizeRedraw, true);
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pnlBack.Controls.Add(tbSelectedValue);
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pnlBack.Controls.Add(btnSelect);
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this.Controls.Add(pnlBack);
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pnlCheck.Controls.Add(checkListBox);
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pnlCheck.Controls.Add(lbSelectAll);
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pnlCheck.Controls.Add(lbSelectNo);
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pnlCheck.Controls.Add(lbGrip);
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this.frmCheckList.Controls.Add(pnlCheck);
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}
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private void ReloationGrip()
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{
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lbGrip.Top = this.frmCheckList.Height - lbGrip.Height - 1;
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lbGrip.Left = this.frmCheckList.Width - lbGrip.Width - 1;
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lbSelectAll.Left = 5;
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lbSelectAll.Top = frmCheckList.Height - lbSelectAll.Height;
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lbSelectNo.Left = 50;
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lbSelectNo.Top = frmCheckList.Height - lbSelectNo.Height;
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}
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#region 事件
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//布局
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private void ComCheckBoxList_Layout(object sender, LayoutEventArgs e)
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{
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this.Height = tbSelectedValue.Height + 10;
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this.pnlBack.Size = new Size(this.Width, this.Height - 2);
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//设置按钮的位置
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this.btnSelect.Size = new Size(20, this.Height - 6);
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btnSelect.Location = new Point(this.Width - this.btnSelect.Width - 4, 0);
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this.tbSelectedValue.Location = new Point(2, 2);
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this.tbSelectedValue.Width = this.Width - btnSelect.Width - 4;
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checkListBox.Height = 150;
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//设置窗体
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this.frmCheckList.Size = new Size(this.Width, this.checkListBox.Height);
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this.pnlCheck.Size = frmCheckList.Size;
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this.checkListBox.Width = this.frmCheckList.Width;
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this.checkListBox.Height = this.frmCheckList.Height - lbSelectNo.Height;
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ReloationGrip();
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}
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/// <summary>
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/// 单击下拉框
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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public void btnSelect_Click(object sender, EventArgs e)
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{
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if (this.frmCheckList.Visible == false)
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{
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Rectangle rec = this.RectangleToScreen(this.ClientRectangle);
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this.frmCheckList.Location = new Point(rec.X, rec.Y + this.pnlBack.Height);
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this.frmCheckList.Show();
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this.frmCheckList.BringToFront();
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ReloationGrip();
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}
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else
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{
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this.frmCheckList.Hide();
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}
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}
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//全选事件
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private void lbSelectAll_Click(object sender, EventArgs e)
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{
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//获取选中的数量
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string strSelect = string.Empty;
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this.tbSelectedValue.Clear();
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for (int i = 0; i < checkListBox.Items.Count; i++)
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{
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checkListBox.SetItemChecked(i, true);
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strSelect += this.checkListBox.GetItemText(this.checkListBox.Items[i]) + " ";
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}
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tbSelectedValue.Text = strSelect;
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}
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//取消
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private void lbSelectNo_Click(object sender, EventArgs e)
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{
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for (int i = 0; i < checkListBox.Items.Count; i++)
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{
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checkListBox.SetItemChecked(i, false);
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}
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tbSelectedValue.Text = string.Empty;
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}
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private void checkListBox_LostFocus(object sender, EventArgs e)
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{
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//如果鼠标位置在下拉框按钮的以为地方，则隐藏下拉框
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if (!this.btnSelect.RectangleToScreen(this.btnSelect.ClientRectangle).Contains(Cursor.Position))
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{
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frmCheckList.Hide();
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}
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}
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/// <summary>
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/// 麻醉方式多选 JBL20140805
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/// </summary>
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private void checkListBox_ItemCheck(object sender, ItemCheckEventArgs e)
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{
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if (ItemClick != null)
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{
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ItemClick(sender, e);
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}
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//获取选中的文本
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string strSelect = this.tbSelectedValue.Text;
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if (e.NewValue == CheckState.Checked)
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{
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strSelect += this.checkListBox.GetItemText(this.checkListBox.Items[e.Index]) + " ";
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}
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else
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{
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strSelect = strSelect.Replace(this.checkListBox.GetItemText(this.checkListBox.Items[e.Index]) + " ", string.Empty);
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}
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tbSelectedValue.Text = strSelect;
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}
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/// <summary>
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/// 鼠标按下
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void lbGrip_MouseDown(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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int offsetX = System.Math.Abs(Cursor.Position.X - frmCheckList.RectangleToScreen(this.frmCheckList.ClientRectangle).Right);
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int offsetY = System.Math.Abs(Cursor.Position.Y - frmCheckList.RectangleToScreen(this.frmCheckList.ClientRectangle).Bottom);
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this.DragOffset = new Point(offsetX, offsetY);
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}
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}
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/// <summary>
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/// 鼠标移动
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void lbGrip_MouseMove(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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//获取拉伸长度
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int curWidth = Cursor.Position.X - frmCheckList.Location.X;
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int curHeight = Cursor.Position.Y - frmCheckList.Location.Y;
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if (curWidth < this.Width)
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{
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curWidth = this.Width;
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}
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if (curHeight < checkListBox.Height)
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{
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curHeight = checkListBox.Height;
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}
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this.frmCheckList.Size = new Size(this.Width, curHeight);
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this.pnlCheck.Size = frmCheckList.Size;
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this.checkListBox.Height = (this.frmCheckList.Height - lbGrip.Height) < 50 ? 50 : this.frmCheckList.Height - lbGrip.Height;
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ReloationGrip();
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SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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SetStyle(ControlStyles.ResizeRedraw, true);
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SetStyle(ControlStyles.UserPaint, true);
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SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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}
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}
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#endregion
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/// <summary>
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/// 设置数据源
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/// </summary>
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public object DataSource
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{
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set
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{
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this.checkListBox.DataSource = value;
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}
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get
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{
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return checkListBox.DataSource;
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}
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}
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/// <summary>
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/// 设置值
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/// </summary>
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public string ValueMember
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{
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set
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{
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checkListBox.ValueMember = value;
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}
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}
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/// <summary>
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/// 设置显示名称
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/// </summary>
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public string DisplayMember
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{
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set
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{
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checkListBox.DisplayMember = value;
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}
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}
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/// <summary>
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/// 添加项
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/// </summary>
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public int AddItems(object value)
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{
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checkListBox.Items.Add(value);
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return checkListBox.Items.Count;
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}
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/// <summary>
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/// 选项集合
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/// </summary>
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public CheckedListBox.ObjectCollection Items
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{
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get
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{
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return checkListBox.Items;
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}
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}
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/// <summary>
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/// 获取所有选择的文本内容
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/// </summary>
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public string SelectedText
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{
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get
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{
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return this.tbSelectedValue.Text;
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}
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set
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{
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this.tbSelectedValue.Text = value;
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}
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}
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/// <summary>
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/// 获取选中项的文本
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/// </summary>
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/// <param name="item"></param>
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/// <returns></returns>
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public string GetItemText(object item)
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{
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return checkListBox.GetItemText(item);
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}
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/// <summary>
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/// 重写LABEL
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/// </summary>
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public class LabelS : Label
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{
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public LabelS()
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{
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//控件绘制的时候减少闪烁
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this.SetStyle(ControlStyles.UserPaint, true);
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this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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System.Windows.Forms.ControlPaint.DrawSizeGrip(e.Graphics, Color.Black, 1, 0, this.Size.Width, this.Size.Height);
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}
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}
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/// <summary>
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/// 重写BUTTON
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/// </summary>
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public class ButtonS : Button
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{
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public ButtonS()
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{
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//防止重绘控件出现闪烁
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this.SetStyle(ControlStyles.UserPaint, true);
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this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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}
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ButtonState state;
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//当按钮被按下
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protected override void OnMouseDown(MouseEventArgs mevent)
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{
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state = ButtonState.Pushed;
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base.OnMouseDown(mevent);
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}
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//当按钮被释放
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protected override void OnMouseUp(MouseEventArgs mevent)
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{
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state = ButtonState.Normal;
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base.OnMouseUp(mevent);
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}
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protected override void OnPaint(PaintEventArgs pevent)
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{
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base.OnPaint(pevent);
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System.Windows.Forms.ControlPaint.DrawComboButton(pevent.Graphics, 0, 0, this.Width, this.Height, state);
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}
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}
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}
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}
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