ValidationEventArgs.Value Property

Gets the editor’s value.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v18.2.dll

Declaration

C#

public object Value { get; }

VB.NET

Public ReadOnly Property Value As Object

Property Value

Type	Description
Object	An object that represents the editor’s value entered by an end-user.

Remarks

Use the Value property to obtain the value entered by an end-user. If this value meets your validation rules, leave the ValidationEventArgs.IsValid property set to true. Otherwise, if the Value property’s value is invalid, set the ValidationEventArgs.IsValid property to false. The error type and description can be specified using the ValidationEventArgs.ErrorType and ValidationEventArgs.ErrorContent properties, respectively.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Value 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#

dxscheduler-for-wpf-complete-implementation-of-a-custom-edit-appointment-form-e3374/CS/CustomAppointmentForm.xaml.cs#L135

void OnEdtEndTimeValidate(object sender, ValidationEventArgs e) {
    if(e.Value == null)
        return;

how-to-change-the-appearance-of-editors-when-validation-error-occurs-e3097/CS/WPFCustomValidationErrorPresenter/MainWindow.xaml.cs#L26

private void textEdit_Validate(object sender, DevExpress.Xpf.Editors.ValidationEventArgs e) {
   if (e.Value != null) {
        decimal parameter = (e.Value is string) ? ((string)e.Value).Length : (decimal)e.Value;

mvvm-how-to-use-validationrules-to-validate-values-entered-into-gridcontrol-e3233/CS/WpfApplication1/GridColumnValidationHelper.cs#L38

foreach(ValidationRule rule in GetValidationRules(column)) {
    ValidationResult result = rule.Validate(e.Value, CultureInfo.CurrentCulture);
    if(!result.IsValid) {

validate-cell-editors/CS/DXGrid_ValidatingEditors/Window1.xaml.cs#L28

if (discontinued) {
    double discount = 100 - (Convert.ToDouble(e.Value) * 100) /
                                  Convert.ToDouble(e.CellValue);

VB.NET

how-to-change-the-appearance-of-editors-when-validation-error-occurs-e3097/VB/WPFCustomValidationErrorPresenter/MainWindow.xaml.vb#L28

Private Sub textEdit_Validate(ByVal sender As Object, ByVal e As DevExpress.Xpf.Editors.ValidationEventArgs)
   If e.Value IsNot Nothing Then
        Dim parameter As Decimal = If((TypeOf e.Value Is String), (CStr(e.Value)).Length, CDec(e.Value))

mvvm-how-to-use-validationrules-to-validate-values-entered-into-gridcontrol-e3233/VB/WpfApplication1/GridColumnValidationHelper.vb#L44

For Each rule As ValidationRule In GetValidationRules(column)
    Dim result As ValidationResult = rule.Validate(e.Value, CultureInfo.CurrentCulture)
    If (Not result.IsValid) Then

validate-cell-editors/VB/DXGrid_ValidatingEditors/Window1.xaml.vb#L30

If discontinued Then
    Dim discount As Double = 100 - (Convert.ToDouble(e.Value) * 100) / Convert.ToDouble(e.CellValue)
    If Not(discount > 0 AndAlso discount <= 30) Then