Button within RadGrid column

[Joseph]

I have a class that inherits from GridBoundColumn (TextFilterButtonColumn.cs) in order to add some custom filtering. I then use TextFilterButtonColumn to create columns within a RadGrid. I would like to add a click event to each item in the column. I've done the following within TextFilterButtonColumn.cs:

public override void Initialize()
{
    base.Initialize();
    Owner.Page.ClientScript.RegisterClientScriptResource(this.GetType(), "Common.js");
}
public override void PrepareCell(TableCell cell, GridItem item)
{
    base.PrepareCell(cell, item);
    if (!(item is GridDataItem)) return;
    var clickScript = string.Format("javascript:tfbc_Click('{0}','{1}');", this.Owner.ClientID, CommandName);
    var linkButton = new HtmlAnchor() { ID = "lnk", InnerText = cell.Text, HRef = clickScript };
    cell.Controls.Clear();
    cell.Controls.Add(linkButton);
}

In the Common.js file I have the following function:

function tfbc_Click(owner, command, argument) {
    $find(owner).fireCommand(command, argument);
}

This click event is then accessed inside of the RadGrid ItemCommand event by setting the CommandName property of the GridBoundColumn to "commandName" and checking for it:

if(e.CommandName == "commandName")
{
    var item = (GridDataItem) e.Item;
    var strKey = item.GetDataKeyValue("Id").ToString();
    var control = (Details)Page.LoadControl("~/Controls/Details.ascx");
    control.Id = long.Parse(strKey);
    MPS.AddPopup(control);
}

I was hoping to access the Id of the row that the radgrid is bound to by calling GetDataKeyValue however this always returns 1. Is there a way to access information regarding the datasource for that row in the ItemCommand event? Or is there another way to accomplish this? Thanks.

[Mira]

Hello,

Please use the following code in order to access the corresponding grid item:

public override void PrepareCell(TableCell cell, GridItem item)
{
    base.PrepareCell(cell, item);
    if (!(item is GridDataItem)) return;
    var clickScript = string.Format("javascript:tfbc_Click('{0}','{1}', '{2}');", this.Owner.ClientID, CommandName, item.ItemIndex);
    var linkButton = new HtmlAnchor() { ID = "lnk", InnerText = cell.Text, HRef = clickScript };
    cell.Controls.Clear();
    cell.Controls.Add(linkButton);
}

if (e.CommandName == "commandName")
{
    var item = RadGrid2.MasterTableView.Items[int.Parse(e.CommandArgument)];
    //..
}

I hope this helps.

Kind regards,
Mira
the Telerik team

[Joseph]

Thanks for the reply.