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I have this checkbox that I need to be AutoPostBack="True" so that I can trigger OnCheckedChanged="chkCompany_OnCheckedChanged". The problem is that I dont want the page to be refreshed and redirected, I want the user to stay put exactly where they are.
ASPX:
<asp:CheckBox OnCheckedChanged="chkCompany_OnCheckedChanged" AutoPostBack="True" CssClass="chkCompany" ClientIDMode="Static" ID="chkCompany" runat="server" />
C#:
protected void chkCompany_OnCheckedChanged(object sender, EventArgs e)
{
if (chkCompany.Checked)
{
txtName.Visible = false;
}
else
{
txtName.Visible = true;
}
}
405
asked Dec 20 '25 06:12
You should use UpdatePanel control to do this
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<asp:CheckBox OnCheckedChanged="chkCompany_OnCheckedChanged" AutoPostBack="True" CssClass="chkCompany" ClientIDMode="Static" ID="chkCompany" runat="server" />
</ContentTemplate>
</asp:UpdatePanel>
Keep your code inside update pannel.
59
you can use javascript to do this,if Update panel does not work.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<script type=text/javascript>
function CheckedChanged()
{
if((document.getElementById('chkCompany').checked))
`{`
document.getElementById('txtname').Visible=false;
}
`else`
{
document.getElementById('txtname').Visible=false;
`}`
}
</script>
</head>
<body>
<asp:CheckBox OnCheckedChanged="CheckedChanged" AutoPostBack="false" CssClass="chkCompany" ClientIDMode="Static" ID="chkCompany" runat="server" />
<asp:TextBox ID="txtname" runat="server"/>
</body>
</html>
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