InvalidItemExceptionArgs.IsNewItem Property

Gets whether the validate operation processes a new data item.

Namespace: DevExpress.Mvvm.Xpf

Assembly: DevExpress.Mvvm.v21.2.dll

NuGet Packages: DevExpress.Mvvm, DevExpress.Uwp.Controls, DevExpress.Win.Design, DevExpress.WinUI

Declaration

C#

public bool IsNewItem { get; }

VB.NET

Public ReadOnly Property IsNewItem As Boolean

Property Value

Type	Description
Boolean	true if the validate operation processes a new data item; otherwise, false.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the IsNewItem 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#

wpf-data-grid-initialize-new-item-row-with-default-values/CS/NewItemRow_MVVM/MainViewModel.cs#L49

public void InvalidRow(InvalidRowExceptionArgs args) {
    if(args.IsNewItem) {
        args.ErrorText = "Please enter the Product Name.";

VB.NET

wpf-data-grid-initialize-new-item-row-with-default-values/VB/NewItemRow_MVVM/MainViewModel.vb#L61

Public Sub InvalidRow(ByVal args As InvalidRowExceptionArgs)
    If args.IsNewItem Then
        args.ErrorText = "Please enter the Product Name."