App_Code/ValidateNum.cs
(完整代码) 1KBusing System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
/// <summary>
/// Summary description for ValidateNum
/// </summary>
public class ValidateNum
{
public ValidateNum()
{
//
// TODO: Add constructor logic here
//
}
//清空页面控件
public void cleanall(Page page)
{
for (int i = 0; i < page.Controls.Count; i++)
{
foreach (System.Web.UI.Control control in page.Controls[i].Controls)
{
if (control is TextBox)
{
(control as TextBox).Text = "";
}
else if (control is DropDownList)
{
(control as DropDownList).SelectedIndex = -1;
}
else if (control is HiddenField)
{
(control as HiddenField).Value = "";
}
}
}
}
}
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