RadTextBox value not propagating to server

[Brian Mains]

Hello,

I change a value in a RadTextBox on a client, and it's not propagating to the server.  I have a RadTextBox in a ListView.  The values get submitted in bulk to the server via button click, but I don't use the button click directly.  Instead, I'm calling __doPostBack(button.name, "<command>"); and the issue is when I use this approach, changes aren't making there way back to the server, either via:

RTB.SelectedDate
RTB.DateInput.SelectedDate

It's all null.  Why would that be?  I'm using 2008.3.1125.35.

Thanks.

[Brian Mains]

Hello,

Actually, it's the RadDatePicker; I'm getting my controls mixed up.  Sorry for the confusion.

Thanks.

[Martin]

Hello Brian,

You can use the OnValueChanging client-side event of the embedded DateInput control to get the entered value. Then set this value to a hidden field that is available on the server. Here is a sample markup:

<asp:Button runat="server" Text="Button" ID="Button1" style="display:none">
        </asp:Button>
        <asp:HiddenField ID="HiddenField1" runat="server" />
        <asp:ListView runat="server" ID="ListView1" ItemPlaceholderID="itemPlaceholder">
            <ItemTemplate>
                    <telerik:RadDatePicker ID="RadDatePicker1" runat="server">
                        <DateInput>
                            <ClientEvents OnValueChanging="ValueChanging" />
                        </DateInput>
                    </telerik:RadDatePicker>
            </ItemTemplate>
            <LayoutTemplate>
                <asp:PlaceHolder runat="server" ID="itemPlaceholder"></asp:PlaceHolder>
            </LayoutTemplate>
        </asp:ListView>
        <br/>
        <asp:Label runat="server" ID="Label1"></asp:Label>

The client-side OnValueChanging event handler:

function ValueChanging(sender, args)
            {
                var hidden = $get("HiddenField1");
                hidden.value = args.get_newValue();
                var button = $get("Button1");
                __doPostBack(button.name, "");
            }

and on the server:

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DataTable table = new DataTable();
            table.Columns.Add("Column1");
            table.Rows.Add("Hello");
            ListView1.DataSource = table;
            ListView1.DataBind();
        }
        Label1.Text = "Value is: "+HiddenField1.Value;
    }

Best regards,
Martin
the Telerik team

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