如何在gridview RowDataBound中创建按钮单击事件c＃asp.net

temp sun 发表于 Dev

临时太阳

我正在尝试在gridview c＃asp.net中的rowdatabound中创建按钮并单击事件，如下代码

 protected void btnerror_Click(object sender, EventArgs e)
{
         GridView gv = new GridView();
        gv.RowDataBound += gv_RowDataBound;
        gv.RowCommand += gv_RowCommand;
        gv.RowCreated += gv_RowCreated;

        gv.EnableViewState = true;

        gv.DataSource = _dt;
        gv.DataBind();
}


void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {

        ImageButton btnUpdate = new ImageButton();

        btnUpdate.ID = "btnupdate";
        btnUpdate.ImageUrl = "~/SmartAdmin/Images/update.png";
        btnUpdate.ToolTip = "Click Update";
        btnUpdate.CommandName = "update";


        btnUpdate.Click += btnUpdate_Click;

        TableCell tc = new TableCell();

        tc.Controls.Add(btnUpdate);
        e.Row.Cells.Add(tc);

    }
}


void gv_RowCommand(object sender, GridViewCommandEventArgs e)
{
    if (e.CommandName == "update")
    {

    }
}

当单击该按钮单击事件未触发时...

我哪里出错了...

感谢你.......

蒂姆·施密特

您真的要GridView手动创建吗？我对此表示强烈怀疑。而是声明式地将其添加到aspx-page并使其在中可见btnerror_Click。

不要动态创建控件并RowDataBound在RowCreated其中注册事件处理程序，但是在每次回发中都会触发该事件处理程序（与相对RowDataBound）：

void gv_RowCreated(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ImageButton btnUpdate = new ImageButton();
        btnUpdate.Click += btnUpdate_Click;
        TableCell tc = new TableCell();

        tc.Controls.Add(btnUpdate);
        e.Row.Cells.Add(tc);
    }
}

void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {    
        ImageButton btnUpdate = (ImageButton)e.Row.FindControls("btnupdate") 
        btnUpdate.ID = "btnupdate";
        btnUpdate.ImageUrl = "~/SmartAdmin/Images/update.png";
        btnUpdate.ToolTip = "Click Update";
        btnUpdate.CommandName = "update";
    }
}