[Solved] TextBox Focus lost after ASP.Net UpdatePanel partial post back using C# and VB.Net

Hi nauna,

If you want to set focus of second textbox so ontechchange of first textbox set focus method of second textbox.

Refer below code.

HTML

<asp:ScriptManager runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <asp:TextBox ID="txtofferrate" runat="server" AutoCompleteType="Disabled" OnTextChanged="txtofferrate_TextChanged"
            AutoPostBack="True"></asp:TextBox>
        <asp:TextBox ID="txtweight" runat="server" AutoCompleteType="Disabled" OnTextChanged="txtweight_TextChanged"
            AutoPostBack="True"></asp:TextBox>
    </ContentTemplate>
</asp:UpdatePanel>

Code

C#

protected void txtofferrate_TextChanged(object sender, EventArgs e)
{
    txtweight.Focus();
}

protected void txtweight_TextChanged(object sender, EventArgs e)
{
}

VB.Net

Protected Sub txtofferrate_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
    txtweight.Focus()
End Sub

Protected Sub txtweight_TextChanged(ByVal sender As Object, ByVal e As EventArgs)
End Sub