ValidateRowEventArgs.Valid Property

Gets or sets whether the row validation succeeds.

Namespace: DevExpress.XtraGrid.Views.Base

Assembly: DevExpress.XtraGrid.v19.1.dll

Declaration

C#

public bool Valid { get; set; }

VB.NET

Public Property Valid As Boolean

Property Value

Type	Description
Boolean	true to accept row cell values; otherwise, false.

Remarks

If the row contains values that do not meet your criteria, set the Valid property to false. In this case, the View will display an error message box. The message box enables end-users to keep focus within the row so that its values can be corrected. Another option available is to allow the focus to switch to a different row thus discarding changes made to row cells.

Note that setting the Valid property to false raises the ColumnView.InvalidRowException event. The event can be handled to override the behavior described above.

Related GitHub Examples

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

building-a-simple-expense-tracking-application-using-xtragrid-for-winforms-example-solution-e5063/CS/XtraGridTutorial.Step4/MainForm.cs#L65

{
    e.Valid = false;
    transactionsGridView.SetColumnError(colTrasactionDate, ValidationErrorStringsHelper.GetDateErrorMessage(colTrasactionDate.GetCaption()));

XPO_how-to-use-customattribute-to-apply-validation-rules-to-persistent-properties-e2527/CS/Q296004/Form1.cs#L37

if (!string.IsNullOrEmpty(e.ErrorText)) {
    e.Valid = false;
    return;

how-to-perform-row-validation-using-the-idxdataerrorinfo-interface-e335/CS/WindowsApplication1/Form1.cs#L54

    (e.Row as MyRecord).GetError(info);
    e.Valid = info.ErrorText == "";
}

how-to-implement-a-capability-to-cancel-current-row-modifications-at-the-gridview-level-e4883/CS/DxSample/Form1.cs#L20

    Person p = (Person)e.Row;
    e.Valid = string.IsNullOrEmpty(p.Name) || p.Name.Contains("A");
}

VB.NET

building-a-simple-expense-tracking-application-using-xtragrid-for-winforms-example-solution-e5063/VB/XtraGridTutorial.Step4/MainForm.vb#L60

If True AndAlso row.TrasactionDate > Date.Today Then
    e.Valid = False
    transactionsGridView.SetColumnError(colTrasactionDate, ValidationErrorStringsHelper.GetDateErrorMessage(colTrasactionDate.GetCaption()))

XPO_how-to-use-customattribute-to-apply-validation-rules-to-persistent-properties-e2527/VB/Q296004/Form1.vb#L42

If (Not String.IsNullOrEmpty(e.ErrorText)) Then
    e.Valid = False
    Return

how-to-perform-row-validation-using-the-idxdataerrorinfo-interface-e335/VB/WindowsApplication1/Form1.vb#L48

    TryCast(e.Row, MyRecord).GetError(info)
    e.Valid = info.ErrorText = ""
End Sub

how-to-implement-a-capability-to-cancel-current-row-modifications-at-the-gridview-level-e4883/VB/DxSample/Form1.vb#L22

    Dim p As Person = CType(e.Row, Person)
    e.Valid = String.IsNullOrEmpty(p.Name) OrElse p.Name.Contains("A")
End Sub