User-417640953 posted
if i place the dropwndown in updatepanel there is no page refresh but the textbox doesnot get any value
Hi svibuk,
Thank you post the issue to asp.net forum.
From your description, I see you want to update the textbox out of the updatepanel when the dropdownlist postback which in the updatepanel.
For this issue, I suggest you use the javascript to complete it like below demo:
<head runat="server">
<title></title>
<script>
function pageLoad(sender,args) {
if (args.get_isPartialLoad())
{
document.getElementById("<%=TextBox1.ClientID%>").value = document.getElementById("<%=HiddenValueForTextBox.ClientID%>").value;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem Selected="True" Text="one" Value="one"></asp:ListItem>
<asp:ListItem Text="two" Value="two"></asp:ListItem>
<asp:ListItem Text="three" Value="three"></asp:ListItem>
</asp:DropDownList>
<asp:HiddenField ID="HiddenValueForTextBox" runat="server" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
code behind:
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
this.HiddenValueForTextBox.Value = "somedata";//suppose comes from database.
}
Hope this helps, thanks.
Best Regards!
