ItemCommand中的中继器突出显示项目

Question

I have a repeater, which inside I bind some usercontrol with Panel. The panel has a OnClick event and raise a ItemCommand . I am aware that the DataItem is not persist throughout the postback and therefore it will be null during the ItemCommand event, my requirement is to change the color of the particular usercontrol when it is clicked (without using Javascript). Anyone has an idea?

Answer 1

You can try altering class names of the particular usercontrols onClick in itemDataBound event like below

protected void DataList1_ItemDataBound(object sender, 
                             DataListItemEventArgs e) 
{
     if (e.Item.ItemType == ListItemType.Item || 
         e.Item.ItemType == ListItemType.AlternatingItem)
     { 
         //Add eventhandlers for highlighting 
         //a DataListItem when the mouse hovers over it.
         e.Item.Attributes.Add("onmouseover", 
                "this.oldClass = this.className;" + 
                " this.className = 'EntryLineHover'"); 
         e.Item.Attributes.Add("onmouseout", 
                "this.className = this.oldClass;");
         //Add eventhandler for simulating 
         //a click on the 'SelectButton'
         e.Item.Attributes.Add("onclick", 
                this.Page.ClientScript.GetPostBackEventReference(
                e.Item.Controls[1], string.Empty));
     }
}