ASPxCaptcha.TextBox Property

Gets the settings of the captcha editor’s text box.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v20.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public CaptchaTextBoxProperties TextBox { get; }

VB.NET

Public ReadOnly Property TextBox As CaptchaTextBoxProperties

Property Value

Type	Description
CaptchaTextBoxProperties	A CaptchaTextBoxProperties object that contains settings specific to an editor’s text box.

Remarks

The TextBox property allows you to access and customize the settings of the ASPxCaptcha‘s text box.

Example

The following part of the ASPxCaptcha - Custom Appearance online demo illustrates how to implement a captcha control with a custom appearance.

In this example, the control’s Refresh Button.ASPxCaptcha and Text Box.ASPxCaptcha are hidden, and their functionaliry is implemented in a custom manner using separate controls (the IMG element, ASPxLabel, ASPxTextBox).

JS

function GetRefreshButton() {
    return document.getElementById("refreshButton");
}        

function OnCaptchaBeginCallback(s, e) {
    var refreshButton = GetRefreshButton();
    refreshButton.src = "Images/refreshButtonAnimated.gif";
}

function OnCaptchaEndCallback(s, e) {
    var refreshButton = GetRefreshButton();
    refreshButton.src = "Images/refreshButton.gif"; 
    tbCode.SetValue("");
...   
}

ASPX

<img id="refreshButton" src="Images/refreshButton.gif" alt="Show another code" title="" 
class="refreshButton" onclick="captcha.Refresh();" />
...
<dx:ASPxCaptcha ID="Captcha" runat="server" SkinID="dummy" ClientInstanceName="captcha" 
CodeLength="6">
    <ChallengeImage BackgroundColor="Transparent" ForegroundColor="#676767" BorderWidth="0"
        Height="72" />
    <ValidationSettings EnableValidation="False">
    </ValidationSettings>
    <TextBox Visible="False" />
    <RefreshButton Visible="False">
    </RefreshButton>
    <LoadingPanel Enabled="False" />
    <ClientSideEvents BeginCallback="OnCaptchaBeginCallback" 
        EndCallback="OnCaptchaEndCallback" />
</dx:ASPxCaptcha>
...
<dx:ASPxLabel ID="lblCode" runat="server" AssociatedControlID="tbCode" Text="Type the code">
</dx:ASPxLabel>
...
<dx:ASPxTextBox ID="tbCode" runat="server" Width="200px" AutoCompleteType="Disabled"
    BackColor="Transparent" ClientInstanceName="tbCode">
    <Border BorderWidth="0px" />
</dx:ASPxTextBox>
...
<dx:ASPxButton ID="btnSubmit" runat="server" Text="Submit" UseSubmitBehavior="true"
    AutoPostBack="true" Width="175px">
</dx:ASPxButton>