App_Code/ValidateNum.cs

(完整代码) 1KB

using 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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