100 lines
2.6 KiB
C#
100 lines
2.6 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 NumTextBox : TextBox
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{
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/// <summary>
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/// 必需的设计器变量。
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/// </summary>
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private System.ComponentModel.IContainer components = null;
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/// <summary>
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/// 清理所有正在使用的资源。
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/// </summary>
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/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
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protected override void Dispose(bool disposing)
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{
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if (disposing && (components != null))
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{
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components.Dispose();
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}
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base.Dispose(disposing);
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}
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#region 组件设计器生成的代码
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/// <summary>
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/// 设计器支持所需的方法 - 不要
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/// 使用代码编辑器修改此方法的内容。
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/// </summary>
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private void InitializeComponent()
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{
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this.SuspendLayout();
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//
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// NumTextBox
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//
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this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.NumTextBox_KeyPress);
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this.ResumeLayout(false);
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}
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#endregion
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public NumTextBox()
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{
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InitializeComponent();
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}
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private void NumTextBox_KeyPress(object sender, KeyPressEventArgs e)
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{
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TextBox tb = sender as TextBox;
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int n = tb.Text.LastIndexOf(".");
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int j = tb.Text.LastIndexOf("-");
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if (e.KeyChar < 48 || e.KeyChar > 57)
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{
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if (e.KeyChar != 46 && e.KeyChar != 8 && e.KeyChar != 13)
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{
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e.Handled = true;
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}
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if (e.KeyChar == 45 && j != -1)
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{
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e.Handled = true;
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}
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}
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if (e.KeyChar == 46 && n >= 0)
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{
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e.Handled = true;
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}
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//if (e.KeyChar == 13)
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//{
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// SendKeys.Send("{tab}");
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//}
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if (e.KeyChar == 8)
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{
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return;
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}
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if (n < 0 && tb.Text.Length > 5)
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{
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e.Handled = true;
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}
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if (tb.Text.Length > 7)
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{
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e.Handled = true;
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}
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if (n > 0 && n < tb.Text.Length - 2)
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{
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e.Handled = true;
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}
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}
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}
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}
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