Focussing RadTextBox on PageLoad

[Peter]

Hi,

We have a page with a RadTextBox:

<telerik:RadTextBox ID='txtSearch' runat='server' Skin='Office2007'></telerik:RadTextBox>

a RadTreeView:
<telerik:RadTreeView ID='rtvCategories' runat='server' ShowLineImages="false"
                Skin="Outlook" DataFieldID="ID" OnClientNodeClicking="NodeClicking" OnClientMouseOver="NodeHover"
                DataFieldParentID="ParentID" DataTextField="Name" DataValueField="ID">
                <CollapseAnimation Type="None" />
                <ExpandAnimation Type="None" />
</telerik:RadTreeView>

and a RadToolTipManager:

<telerik:RadToolTipManager ID='rttmManager' runat='server'
            Skin="Office2007" Width='250px' Sticky="true" ShowDelay="1000" OnAjaxUpdate="rttmManager_AjaxUpdate">
</telerik:RadToolTipManager>


Basically, when you hover over a leaf node in the tree, a javascript method creates a new tooltip for the node and call the "show" method for that tooltip. The tooltip manager's "rttmManager_AjaxUpdate" function is called in the CodeBehind, making a database call to populate the tooltip with the proper content:

e.UpdatePanel.ContentTemplateContainer.Controls.Add(new LiteralControl(content));

We have a problem in that whenever the ToolTips load, the RadTextBox (txtSearch) gains focus and the page scrolls up to it. So you could be viewing the tree all the way at the bottom, scrolled down quite far; if you hover over a node and the tooltip loads it will scroll you back to the top of the page. Here is our Page_Load method:

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                /*Snip some business logic*/

                if (!String.IsNullOrEmpty(Request.QueryString["search"]))
                {
                    txtSearch.Text = Request.QueryString["search"];
                    RadScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), "_categoriesSearchOnLoad_", "Search();", true);
                }

                txtSearch.Focus();
            }
        }

Can you think of any reason why we would be experiencing this behaviour?

[Dimo]

Hello Peter,

The JS code registered with RegisterClientScriptBlock should be executed only on initial page load. Here is a similar demo to your scenario, which works as expected, if I modify it to resemble your scenario:

http://demos.telerik.com/aspnet-ajax/tooltip/examples/targetcontrolsandajax/defaultcs.aspx?product=grid

Best wishes,
Dimo
the Telerik team