控制TextBox只能输入数字(WebForm)
1: /// <summary>
2: /// 控制TextBox只能输入数字
3: /// </summary>
4: /// <param name="TB"></param>
5: public static void ControlTextInputNumber(TextBox TB)
6: {
7: //只能输入数字
8: TB.Attributes.Add("onkeypress", "if(!/[0-9]/.test(String.fromCharCode(event.keyCode)))event.keyCode=0");
9: TB.Attributes.Add("onkeyup", "if(isNaN(value))execCommand('undo')");
10: TB.Attributes.Add("onkeypress", "if(isNaN(value))event.keyCode=0");
11: //不能复制
12: TB.Attributes.Add("onpaste", "return false");
13: TB.Attributes.Add("ondragenter", "return false");
14: //关闭输入法
15: TB.Attributes.Add("style", "ime-mode:disabled");
16: //如果输入未空,那么自动填充0
17: string TextBoxName = TB.ID.ToString();
18: TB.Attributes.Add("onchange", "if (document.getElementById('" + TextBoxName + "').value =='') document.getElementById('" + TextBoxName + "').value = '0'");
19: }