动态创建的链接按钮命令事件不是触发 [英] dynamically created Link Button command event is not Firing

问题描述

  private   void  CreateLinkBut​​ton（ string  commandArgument， string  tidshow）
 {
  string  [] show = tidshow.Split（'  *'）; 
 
 innerTableCell =  new  HtmlTableCell（）; 
 System.Web.UI.HtmlControls.HtmlGenericControl createDiv = 
  new  System.Web.UI.HtmlControls.HtmlGenericControl（  DIV）; 
 
  //   createDiv.Style.Add（HtmlTextWriterStyle.BackgroundColor，cyan）;  
  //   createDiv.Style.Add（HtmlTextWriterStyle.Color，Red）;  
 createDiv.Style.Add（HtmlTextWriterStyle.Height，  25px）; 
 createDiv.Style.Add（HtmlTextWriterStyle.Width，  150px）; 
 createDiv.Style.Add（HtmlTextWriterStyle.Position，  relative）; 
 createDiv.Style.Add（HtmlTextWriterStyle.VerticalAlign，  false）; 
 UpdatePanel up =  new  UpdatePanel（）; 
 up.ID =   up + tidshow; 
 
 
 LinkBut​​ton linkBut​​ton =  new  LinkBut​​ton 
 {
 ID = tidshow，
 Text = show [ 1 ]，
 CommandArgument = commandArgument，
}; 
 
  //   linkBut​​ton.OnClientClick =ShowPopup（）;;  
 linkBut​​ton.Command + =  this  .linktest_Click; 
 linkBut​​ton.CausesValidation =  false ; 
 linkBut​​ton.EnableViewState =  true ; 
 linkBut​​ton.ToolTip =  快速填充; 
 linkBut​​ton.Style.Add（HtmlTextWriterStyle.BorderColor，  green）; 
 up.ContentTemplateContainer.Controls.Add（linkBut​​ton）; 
 createDiv.Controls.Add（up）; 
 innerTableCell.Controls.Add（createDiv）; 
 innerTableRow.Cells.Add（innerTableCell）; 
 
} 
 
 受保护  void  linktest_Click（< span class =code-sdkkeyword> Object  sender，CommandEventArgs e）
 {
 flag =  允许 ; 
 ViewState [  isPostBackOfOutputPage] =   是; 
 
 ViewState [  path] = @ e.CommandArgument.ToString（ ）; 
 
 show（e.CommandArgument.ToString（））; 
} 

解决方案

这是向按钮添加事件处理程序的方法：

 linkBut​​ton.Click + = new EventHandler（this.linktest_Click）; 

使用oninit（）问题解决了。



感谢

 swapnil_jadhav 
 
 <   pre     lang   =   cs > 受保护的覆盖void OnInit（EventArgs e）
 {
 base.OnInit（e）; 
 CreateLinkBut​​ton（）; 
 
} <   / pre  >  

private void CreateLinkButton(string commandArgument, string tidshow)
        {
            string[] show = tidshow.Split('*');

            innerTableCell = new HtmlTableCell();
            System.Web.UI.HtmlControls.HtmlGenericControl createDiv =
             new System.Web.UI.HtmlControls.HtmlGenericControl("DIV");

          //  createDiv.Style.Add(HtmlTextWriterStyle.BackgroundColor, "cyan");
            // createDiv.Style.Add(HtmlTextWriterStyle.Color, "Red");
            createDiv.Style.Add(HtmlTextWriterStyle.Height, "25px");
            createDiv.Style.Add(HtmlTextWriterStyle.Width, "150px");
            createDiv.Style.Add(HtmlTextWriterStyle.Position, "relative");
            createDiv.Style.Add(HtmlTextWriterStyle.VerticalAlign, "false");
            UpdatePanel up = new UpdatePanel();
            up.ID = "up" + tidshow;
            

          LinkButton linkButton = new LinkButton
            {
                ID = tidshow,
                Text = show[1],
                CommandArgument = commandArgument,
            };

           // linkButton.OnClientClick = "ShowPopup();";
            linkButton.Command += this.linktest_Click;
            linkButton.CausesValidation = false;
            linkButton.EnableViewState = true;
            linkButton.ToolTip = "Filling Fast";
            linkButton.Style.Add(HtmlTextWriterStyle.BorderColor, "green");
            up.ContentTemplateContainer.Controls.Add(linkButton);
            createDiv.Controls.Add(up);
            innerTableCell.Controls.Add(createDiv);
            innerTableRow.Cells.Add(innerTableCell);

        }

        protected void linktest_Click(Object sender, CommandEventArgs e)
        {
            flag = "allow";
            ViewState["isPostBackOfOutputPage"] = "yes";

            ViewState["path"] = @e.CommandArgument.ToString();

            show(e.CommandArgument.ToString());
        }

解决方案

This is how you add an eventhandler to the button:

linkButton.Click += new EventHandler(this.linktest_Click);

using oninit() problem is solved.

thanks to

swapnil_jadhav

<pre lang="cs">protected override void OnInit(EventArgs e)
    {
        base.OnInit(e);
        CreateLinkButton();

    }</pre>

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