Setting Focus
You can put the focus on a specific RadInput control dynamically, or you can specify a RadInput control that should get the focus by default. You can set the default focus for the form as a whole, or you can set the default focus on a control that is a child of a Panel control.
To set a focus in the RadInput control you can use one of the following methods.
Setting focus in ASP.NET
ASP.NET provides two different solutions if you need to set focus dynamically:
- You can call a control's Focus method:
protected void Page_Load(object sender, EventArgs e)
{
RadInput1.Focus();
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
RadInput1.Focus()
End Sub
- You can use the Page.SetFocus method with control's ID as a parameter:
protected void Page_Load(object sender, EventArgs e)
{
Page.SetFocus(RadInput1.ClientID);
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
Page.SetFocus(RadInput1.ClientID)
End Sub
Both approaches do the same thing. It is your choice which method you prefer.
Setting focus using RadAjaxPanel/RadAjaxManager
RadAjaxPanel/RadAjaxManager has a FocusControl method that lets you set focus to desired controls. You can use the RadAjaxPanel.FocusControl/RadAjaxManager.FocusControl methods to set focus to a control after the Ajax request is complete:
RadAjaxPanel1.FocusControl(RadInput1.ClientID);
RadAjaxManager1.FocusControl(RadInput1.ClientID);
RadAjaxPanel1.FocusControl(RadInput1.ClientID)
RadAjaxManager1.FocusControl(RadInput1.ClientID)
Setting focus using the ScriptManager
The SetFocus method of the ScriptManager works like the SetFocus method for the Page class. Both methods make the control with the specified ID the active control on the Web page. The SetFocus method of the ScriptManager is for setting focus during asynchronous postbacks. During postbacks and when the page is first rendered, the SetFocus method calls the SetFocus method of the Page class.
ScriptManager1.SetFocus(RadInput1.ClientID);
ScriptManager1.SetFocus(RadInput1.ClientID)
Setting focus in client-side code
The client-side objects for all the RadInput controls have a focus method that lets you set focus to the control. The following example uses this method to set focus to a RadDateInput control when the page is loaded, by calling its focus method from the BODY onload event:
<head runat="server">
<title>Untitled Page</title>
</head>
<body onload="setFocusToRadInput();">
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div>
<script type="text/javascript">
function setFocusToRadInput()
{
var radInput = $find("<%= RadInput1.ClientID %>");
radInput.focus();
}
</script>
<telerik:RadDateInput RenderMode="Lightweight" ID="RadInput1" runat="server">
</telerik:RadDateInput>
</div>
</form>
</body>