c#
public void SetFocus(Page sPage)
{
string[] sCtrl = null;
string sCtrlId = null;
Control sCtrlFound = default(Control);
string sCtrlClientId = null;
string sScript = null;
sCtrl = sPage.Request.Form.GetValues("__EVENTTARGET");
if ((sCtrl != null))
{
sCtrlId = sCtrl[0];
sCtrlFound = sPage.FindControl(sCtrlId);
if ((sCtrlFound != null))
{
sCtrlClientId = sCtrlFound.ClientID;
sScript = "";
sPage.ClientScript.RegisterStartupScript(typeof(string), "controlFocus", sScript);
}
}
}
Call this function on page load Example: SetFocus(this);
vb.net
Public Sub SetFocus(ByRef sPage As Page)
Dim sCtrl() As String
Dim sCtrlId As String
Dim sCtrlFound As Control
Dim sCtrlClientId As String
Dim sScript As String
sCtrl = sPage.Request.Form.GetValues("__EVENTTARGET")
If Not IsNothing(sCtrl) Then
sCtrlId = sCtrl(0)
sCtrlFound = sPage.FindControl(sCtrlId)
If Not IsNothing(sCtrlFound) Then
sCtrlClientId = sCtrlFound.ClientID
sScript = ""
sPage.RegisterStartupScript("controlFocus", sScript)
End If
End If
End Sub
Example: Me.SetFocus(Page)
This will set focus on last used dropdown list.