Comments by venkatrao palepu (Top 34 by date)

Hi Farooq,

Thanks for the quick reply,

As per you guys suggested, whatever we are going to place in updatepanel that will only refresh when the event fire happens on page.

I have one doubt here,

<asp:AsyncPostBackTrigger ControlID="yourfeild" EventName="RowCommand" />

Here suppose if it is button control we will give the ControlID as button ID and Eventname as Button1_Click.

In my application i am using the TreeView control,
I will mention the ControlID as TreeView ID and for EventName what i have to mentioned.?

Could you please guild me on this?

Thanks
Venkat.

Hi Sergey,

I have updated the Question with code that i am using. Could you please help me if you have any idea?

Thanks
venkat.

Hi Sandeep,

Please find the below code that i have written.
Aspx Page:
----------


<asp:TreeView ID="TreeView1" runat="server" ShowCheckBoxes = "Leaf"
ontreenodedatabound="TreeView1_TreeNodeDataBound1" ShowLines="True"
>


Aspx.cs
-------

protected void Page_Load(object sender, EventArgs e)
{

if (!IsPostBack)
{
cn.Open();
SqlCommand cmd = new SqlCommand("select ID,Task,ParentTask from TreeView_Tbl where ParentTask IS NULL", cn);
DataSet ds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
TreeNode root = new TreeNode(ds.Tables[0].Rows[i][1].ToString(), ds.Tables[0].Rows[i][0].ToString());
root.SelectAction = TreeNodeSelectAction.SelectExpand;
CreateNode(root);
TreeView1.Nodes.Add(root);
}
cn.Close();
TreeView1.CollapseAll();


}


}
void CreateNode(TreeNode node)
{
DataSet ds1 = new DataSet();
SqlCommand cmd1 = new SqlCommand("select ID,Task,ParentTask from TreeView_Tbl where ParentTask =" + node.Value,cn);
SqlDataAdapter da = new SqlDataAdapter(cmd1);
da.Fill(ds1);
if (ds1.Tables[0].Rows.Count == 0)
{
return;
}
for (int i = 0; i < ds1.Tables[0].Rows.Count; i++)
{
TreeNode tnode = new TreeNode(ds1.Tables[0].Rows[i][1].ToString(), ds1.Tables[0].Rows[i][0].ToString());
tnode.SelectAction = TreeNodeSelectAction.Expand;
node.ChildNodes.Add(tnode);
CreateNode(tnode);
}
}

protected void TreeView1_TreeNodeDataBound1(object sender, TreeNodeEventArgs e)
{
if (e.Node.ChildNodes.Count == 0)
{

}
}