ASP.NET Populate a listbox without a postback

Question

I have a simple aspx page with a textbox, linkbutton and listbox.

The listbox is to be populated with values from a stored procedure in a SQL database.

What I'd like to do, somehow, is to populate the listbox with those variables when the user clicks the linkbutton. Ideally, I'd like to do this WITHOUT a postback.

Is there any way this can be accomplished?

Thanks,

Jason

Answer 1

I mocked one up for you really quickly.

<form id="form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>

<div>


    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">LinkButton</asp:LinkButton>
            <br />
            <asp:ListBox ID="ListBox1" runat="server" DataTextField="yourdesiredcolumnamegoeshere"></asp:ListBox>
        </ContentTemplate>
    </asp:UpdatePanel>

</div>

<asp:SqlDataSource ID="SqlDataSource2" runat="server" 
    ConnectionString="Data Source=;Initial Catalog=;User ID=;password=" 
    ProviderName="System.Data.SqlClient" 
    SelectCommand="SELECT [yourdesiredcolumnamegoeshere] FROM [yourtablenamegoeshere]">
</asp:SqlDataSource>
</form>

On the code behind:

protected void LinkButton1_Click(object sender, EventArgs e)
{
    ListBox1.DataSource = SqlDataSource2;
    ListBox1.DataBind();
}

Of course you would change the SqlDataSource to your stored proc, but when you clicked the button, it would populate that list without a postback. Let me know if you need anything else.

-JJ