ValidationPattern.ErrorText Property

Gets or sets the error text to be displayed within the editor’s error frame if a required editor’s value is not specified.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v20.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue("*")]
public virtual string ErrorText { get; set; }

VB.NET

<DefaultValue("*")>
Public Overridable Property ErrorText As String

Property Value

Type	Default	Description
String	"*"	A String value that specifies the error text.

Remarks

The ErrorText property allows you to specify an error text to be displayed if a required editor’s value (the editor’s RequiredFieldValidationPattern.IsRequired property is set to true) is not specified. If the property value is empty, the ValidationSettings.ErrorText property value is used instead.

You can override an error text within validation events, via the ASPxClientEditValidationEventArgs.errorText parameter of the client-side ASPxClientEdit.Validation event or via the ValidationEventArgs.ErrorText parameter of the server-side ASPxEdit.Validation event.

To learn more, see the Validation Error Message topic.

Example

View Example

Default.aspx (C#)

<dx:ASPxTextBox ID="tbEMail" runat="server" Size="49" NullText="Enter e-mail ..." Font-Size="Small">
    <ValidationSettings  EnableCustomValidation="True" ErrorDisplayMode="Text" ErrorTextPosition="Bottom" SetFocusOnError="true">
        <ErrorFrameStyle Font-Size="Smaller"/>
        <RegularExpression ValidationExpression="^\w+([-+.'%]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$" 
            ErrorText="Invalid e-mail"/>
        <RequiredField IsRequired="True" ErrorText="E-mail is required"/>
    </ValidationSettings>
    <NullTextStyle Font-Size="Small"/>
</dx:ASPxTextBox>

Default.aspx (VB.NET)

<dx:ASPxTextBox ID="tbEMail" runat="server" Size="49" NullText="Enter e-mail ..." Font-Size="Small">
    <ValidationSettings  EnableCustomValidation="True" ErrorDisplayMode="Text" ErrorTextPosition="Bottom" SetFocusOnError="true">
        <ErrorFrameStyle Font-Size="Smaller"/>
        <RegularExpression ValidationExpression="^\w+([-+.'%]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$" 
            ErrorText="Invalid e-mail"/>
        <RequiredField IsRequired="True" ErrorText="E-mail is required"/>
    </ValidationSettings>
    <NullTextStyle Font-Size="Small"/>
</dx:ASPxTextBox>

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ErrorText property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-set-up-a-custom-font-dialog-e1934/CS/HtmlEditorCustomFontDialog/DevExpress/ASPxHtmlEditorForms/InsertLinkForm.ascx.cs#L37

lblUrl.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_Url) + ":";
txbURL.ValidationSettings.RequiredField.ErrorText = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.RequiredFieldError);
lblEmailTo.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_EmailTo) + ":";

how-to-use-the-client-performdatacallback-method-and-the-server-customdatacallback-event-e1397/CS/HtmlEditorSaveHtml/DevExpress/ASPxHtmlEditorForms/InsertLinkForm.ascx.cs#L37

lblUrl.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_Url) + ":";
txbURL.ValidationSettings.RequiredField.ErrorText = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.RequiredFieldError);
lblEmailTo.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_EmailTo) + ":";

how-to-provide-an-end-user-with-a-list-of-templates-to-insert-into-the-editor-e1974/CS/InsertTemplateText/DevExpress/ASPxHtmlEditorForms/InsertLinkForm.ascx.cs#L37

lblUrl.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_Url) + ":";
txbURL.ValidationSettings.RequiredField.ErrorText = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.RequiredFieldError);
lblEmailTo.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_EmailTo) + ":";

MVC-Data-Editors---Built-in-Validation/CS/CS/Models/BuiltInValidationData.cs#L21

nameValidationSettings.RequiredField.IsRequired = true;
nameValidationSettings.RequiredField.ErrorText = "Name is required";
nameValidationSettings.ErrorTextPosition = ErrorTextPosition.Bottom;

VB.NET

how-to-set-up-a-custom-font-dialog-e1934/VB/HtmlEditorCustomFontDialog/DevExpress/ASPxHtmlEditorForms/InsertLinkForm.ascx.vb#L40

lblUrl.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_Url) & ":"
txbURL.ValidationSettings.RequiredField.ErrorText = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.RequiredFieldError)
lblEmailTo.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_EmailTo) & ":"

how-to-use-the-client-performdatacallback-method-and-the-server-customdatacallback-event-e1397/VB/HtmlEditorSaveHtml/DevExpress/ASPxHtmlEditorForms/InsertLinkForm.ascx.vb#L40

lblUrl.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_Url) & ":"
txbURL.ValidationSettings.RequiredField.ErrorText = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.RequiredFieldError)
lblEmailTo.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_EmailTo) & ":"

how-to-provide-an-end-user-with-a-list-of-templates-to-insert-into-the-editor-e1974/VB/InsertTemplateText/DevExpress/ASPxHtmlEditorForms/InsertLinkForm.ascx.vb#L40

lblUrl.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_Url) & ":"
txbURL.ValidationSettings.RequiredField.ErrorText = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.RequiredFieldError)
lblEmailTo.Text = ASPxHtmlEditorLocalizer.GetString(ASPxHtmlEditorStringId.InsertLink_EmailTo) & ":"

MVC-Data-Editors---Built-in-Validation/VB/CS/Models/BuiltInValidationData.vb#L23

nameValidationSettings_Renamed.RequiredField.IsRequired = True
nameValidationSettings_Renamed.RequiredField.ErrorText = "Name is required"
nameValidationSettings_Renamed.ErrorTextPosition = ErrorTextPosition.Bottom