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asynchronous dropdownlist any idea
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any idea about asynchronous drop downlist, on selected item of drop downlist with out causing server round trip how can we populate selected item into textbox.(with out postback or callback)
Hey Use AJAX Extension controls .Which are available at http://ajax.asp.net/default.aspx?tabid=47.Download and install and use it.DOcumentation also there you can download it use it.
coming to your problem I solved using AJAX controls as
<script runat="server">
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
TextBox1.Text = DropDownList1.SelectedItem.Value;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp
criptManager ID="ScriptManager1" runat="server">
</aspcriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp
ropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"
Width="100px">
<asp:ListItem Selected="True">first_item</asp:ListItem>
<asp:ListItem>second_item</asp:ListItem>
</aspropDownList>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
I think this works
coming to your problem I solved using AJAX controls as
<script runat="server">
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
TextBox1.Text = DropDownList1.SelectedItem.Value;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp
criptManager ID="ScriptManager1" runat="server"></asp
criptManager><asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp
ropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"Width="100px">
<asp:ListItem Selected="True">first_item</asp:ListItem>
<asp:ListItem>second_item</asp:ListItem>
</asp
ropDownList><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
I think this works
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Join Date: May 2006
Posts: 1,582
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Solved Threads: 52
aravindkishore, please use [code] and [/code] tags when you post code. 
•
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Join Date: Aug 2006
Posts: 812
Reputation:
Solved Threads: 13
Practically a Posting Shark
Did you put the Update panel under the Script Manager? And did you install the AjaxToolKitExtender.vsi?
There is just two ways to live your life.
One is as though nothing is a miracle.
The other is as if everything is.
One is as though nothing is a miracle.
The other is as if everything is.
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