如何禁用数据列表中的链接按钮？

Question

protected void lnk_Add_Click(object sender, DataListCommandEventArgs e)
{
    Label id = (Label)e.Item.FindControl("lbl_PID");
    Label lbl_P_Name = (Label)e.Item.FindControl("lbl_PN");
    Image P_Image = (Image)e.Item.FindControl("Img");
    LinkButton lnkbtn = (LinkButton)e.Item.FindControl("lnk_Add");
    lnkbtn.Enabled = false;

}

I am using above method for Disabling a link button after it has been clicked once but the problem I am facing is that when ever I click on other link button(In other Row) the previous link button which was disable gets enable.

What I want is to disable a linkbutton until I don't enable it from any other event or method.

Answer 1

I suggest you to use ItemDataBound event of your Datalist

void Item_Bound(Object sender, DataListItemEventArgs e)
{

         if (e.Item.ItemType == ListItemType.Item || 
             e.Item.ItemType == ListItemType.AlternatingItem)
         {

           var lnkbtn = (LinkButton)e.Item.FindControl("lnk_Add");
           lnkbtn.Enabled = false;

         }

}

Based on this link : http://msdn.microsoft.com/fr-fr/library/system.web.ui.webcontrols.datalist.itemdatabound.aspx

Answer 2

只需在page_load事件中将网格绑定到If(!IsPostBack)中