Set Focus Controls - AutoPostBack = true

Every time user’s complaints me about page scroll issues. For example: If a lengthy page having a dropdown list with AutoPostBack = true at bottom of page. After the selection page gets reloaded and focus will be on top of the page. User needs to again scroll down the page for next key in. Here a sample solution for help...

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.