Getting Request.form data

[Andy Green]

First up I know I'm being lazy, but the button is in a user control, and using the request.form is easier than recreating the user control on postback and getting the value.
 
That said how would I get the checked value of a RadButton that is configured as a toggle button to look like a checkbox? The data is in the form :

{"text":"","value":"","checked":true,"target":"","navigateUrl":"","commandName":"","commandArgument":"","autoPostBack":false,"selectedToggleStateIndex":0,"validationGroup":null,"readOnly":false}

 
Its the Checked value I need. .

Andy

[Danail Vasilev]

Hi Andy,

Request.Form command is used to retrieve user input from forms. RadButton, however, is a script control, which means that it is not rendered just as a simple input. Therefore you can use its server-side method - SelectedToggleStateIndex, in order to retrieve the checked value of the RadButton configured as a toggle button. For example:

ASPX:

<telerik:RadButton ID="RadButton1" runat="server" ToggleType="CustomToggle" ButtonType="ToggleButton"
    AutoPostBack="true">
    <ToggleStates>
        <telerik:RadButtonToggleState Text="UnChecked" PrimaryIconCssClass="rbToggleCheckbox"></telerik:RadButtonToggleState>
        <telerik:RadButtonToggleState Text="Filled" PrimaryIconCssClass="rbToggleCheckboxFilled"></telerik:RadButtonToggleState>
        <telerik:RadButtonToggleState Text="Checked" PrimaryIconCssClass="rbToggleCheckboxChecked"
            Selected="true"></telerik:RadButtonToggleState>
    </ToggleStates>
</telerik:RadButton>
<br />
Selected Index is:
<asp:Label ID="Label1" Text="text" runat="server" />

C#:

protected void Page_Load(object sender, EventArgs e)
{
    Label1.Text = RadButton1.SelectedToggleStateIndex.ToString();
}

You can also find useful the server-side API of RadButton.



Regards,
Danail Vasilev
Telerik

[Andy Green]

Thanks but as this exists in a user control it is destroyed on postback, As I said in my OP I'm looking to get the value without recreating the control on the server.

The string values exists in the requestForm object already, was looking at a way to use it.

Andy

[Danail Vasilev]

Hello Andy,

You can get the Client State of the RadButton from the Request.Form collection through the name of the RadButton's input name property. For example:
ASPX:

<telerik:RadButton ID="RadButton1" runat="server" Text="postback" />
<myusercontrol:myUC ID="uc1" runat="server" />
<br />
ToggleStateIndex is:
<asp:Label ID="Label1" runat="server" />

C#:

protected void Page_Load(object sender, EventArgs e)
{
    if (IsPostBack)
    {
        string toggleState = Request.Form["uc1_RadButton1_ClientState"];
        int startIndex = toggleState.IndexOf("selectedToggleStateIndex") + 26;
        int length = toggleState.IndexOf(",", startIndex) - startIndex;
        toggleState = toggleState.Substring(startIndex, length);
        Label1.Text = toggleState;
    }
}

ASCX:

<telerik:RadButton ID="RadButton1" runat="server" ToggleType="CustomToggle" ButtonType="ToggleButton"
    AutoPostBack="true">
    <ToggleStates>
        <telerik:RadButtonToggleState Text="UnChecked" PrimaryIconCssClass="rbToggleCheckbox"></telerik:RadButtonToggleState>
        <telerik:RadButtonToggleState Text="Filled" PrimaryIconCssClass="rbToggleCheckboxFilled"></telerik:RadButtonToggleState>
        <telerik:RadButtonToggleState Text="Checked" PrimaryIconCssClass="rbToggleCheckboxChecked"
            Selected="true"></telerik:RadButtonToggleState>
    </ToggleStates>
</telerik:RadButton>

where the highlighted text is the name of the RadButton's input.  Note, however, that the ClientState of the RadButton,  will only be available if the button itself is clicked. Therefore I can suggest you to use a hidden field where you can store the RadButton's ToggleState, so that it can be obtained later.


Regards,
Danail Vasilev
Telerik