Here is what I am doing.  When the user clicks on the add button, the follow code executes:

private void bAdd_Click( object sender, RoutedEventArgs e )
{
	try
	{
		//
		// Builds the undo stack in the object
		//
		( this.dgPDUsers.ActiveDataItem as PDUser ).BeginEdit();

		PDUser p = new PDUser()
		{
			PDUserID   = -1,
			Password   = "change me please",
			FirstName  = "Change me",
			LastName   = "Change me",
			Name       = "Me, Change",
			LockedOut  = 0,
			ActiveName = "Yes",
			Active     = 1,
			Deleted    = 0
		};

		//
		// Add the new patient to the list.
		//
		( this.dgPDUsers.DataSource as ObservableCollection<PDUser> ).Add( p );

		//
		// highlight the new row.
		//
		DataRecord dr = this.dgPDUsers.GetRecordFromDataItem( p, false );
		this.dgPDUsers.BringRecordIntoView( dr );
		this.SetActiveRecord( dr.Index );
		
		//
		// Highlight selected clinics
		//
		this.SetSelectedClinics();

		//
		// Highlight selected roles
		//
		this.SetSelectedRoles();

		//
		// Set passwords
		//
		this.txtPassword.Password = ( this.dgPDUsers.ActiveDataItem as PDUser ).Password;
		this.txtPasswordVerify.Password = ( this.dgPDUsers.ActiveDataItem as PDUser ).Password;

		//
		// Set the mode and call mode manager
		//
		this.SetMode( Mode.Add );
		this.ModeManager();

		//
		// Send begin add event
		//
		this.AppData.Events.OnBeginAdd( new BeginAddEventArgs( this.ToString(), this.AppData.CurrentLoggedInPDUser ) );
	}
	catch( Exception ex )
	{
		MessageBox.Show( ex.Message + ex.StackTrace, "Add PDUser Error", MessageBoxButton.OK, MessageBoxImage.Error );
	}
}

Just for clarity I am posting my SetActiveRecord() which is the code below.

private void SetActiveRecord( int SelectedRow )
{
	try
	{
		if( this.dgPDUsers.Records.Count > 0 )
		{
			//
			// Why oh why Infragistics...
			//
			this.dgPDUsers.SelectedItems.Records.Clear();
			this.dgPDUsers.Records[ SelectedRow ].IsSelected = true;
			this.dgPDUsers.Records[ SelectedRow ].IsActive = true;
			this.dgPDUsers.ActiveRecord = this.dgPDUsers.Records[ SelectedRow ];
			this.dgPDUsers.ActiveDataItem = this.dgPDUsers.Records[ SelectedRow ];
			this.dgPDUsers.BringRecordIntoView( this.dgPDUsers.Records[ SelectedRow ] );
		}
	}
	catch( Exception )
	{
		throw;
	}
}

Now we have a record in the grid which is at the bottom and visible with an ID of -1.  Because the text boxes are bound two ways to the ActiveDataItem in the grid, the values we set in the class are also visible.  When I make edits to the text boxes, the changes are also reflected in the grid as well.  This is as expected and works the way I want it to.

Next the user clicks save and the following code is executed.

private void Add()
{
	try
	{
		( this.dgPDUsers.ActiveDataItem as PDUser ).Add();
		if( !( this.dgPDUsers.ActiveDataItem as PDUser ).IsValid )
		{
			//
			// Build error message string for display
			//
			MessageBox.Show( this.BuildErrorMessage( "The PD User could not be added because of the following errors: " ),
				"Add Error Message", 
				MessageBoxButton.OK, MessageBoxImage.Information );
		}
		else
		{
			//
			// Cleans up the undo stack in the object
			//
			( this.dgPDUsers.ActiveDataItem as PDUser ).EndEdit();

			//
			// Set Mode
			//
			this.SetMode( Mode.View );

			//
			// Send the end add event
			//
			this.AppData.Events.OnEndAdd( new EndAddEventArgs( this.ToString(), this.AppData.CurrentLoggedInPDUser ) );

			//
			// Call mode manager to redraw UI
			//
			this.ModeManager();
		}
	}
	catch( Exception )
	{
		throw;
	}
}

This code adds the class to the database and an ID is assigned.  Since the object is two way bound, when the ID property is changed with the new ID, it is also reflected in both the grid and in the ID text box.  Again, this is expected and works the way I want it to.

So, now I have what I want in the grid with the user input values and the ID assigned by the database. However the issue for me is that once I click on any row in the grid, the newly added row disappears. I am using an ObservableCollection to bind to the grid.

I don't want the users to be editing data in the grid because it only is a subset of the detail, something that provides enough information to be useful, but not every data point that needs to be edited.

If this issue is perplexing you after reviewing my details, is it possible for you run it by your colleagues for an additional perspective?  I'm also providing my XAML code as that might also be helpful.

<igDP:XamDataGrid Grid.Row="0" 
				  HorizontalAlignment="Stretch"
				  x:Name="dgPDUsers"
				  DataSource="{Binding DataContext.PDUsers, 
								ElementName=ManageUserViewModel, 
								Mode=TwoWay, 
								UpdateSourceTrigger=PropertyChanged, 
								ValidatesOnExceptions=True, 
								ValidatesOnDataErrors=True}"
				  
				  IsSynchronizedWithCurrentItem="True" 
				  HorizontalContentAlignment="Stretch" 
				  VerticalContentAlignment="Stretch" 
				  Loaded="dgPDUsers_Loaded"
				  Margin="0" 
				  SelectedItemsChanged="dgPDUsers_SelectedItemsChanged">

	<igDP:XamDataGrid.FieldLayouts>
		<igDP:FieldLayout Key="Expanded">
			<igDP:Field Name="PDUserID" Label="User ID" Width="65" IsPrimary="True" />
			<igDP:Field Name="Name" Label="Name" Width="105" Visibility="Collapsed"  IsScrollTipField="True" />
			<igDP:Field Name="FirstName" Label="First Name" Width="105" />
			<igDP:Field Name="LastName" Label="Last Name" Width="105"/>
			<igDP:Field Name="LockedOut" Label="Locked Out" Width="90" />
			<igDP:Field Name="ActiveName" Label="Active" Width="80" />
		</igDP:FieldLayout>
	</igDP:XamDataGrid.FieldLayouts>

	<igDP:XamDataGrid.FieldSettings>
		<igDP:FieldSettings CellClickAction="SelectRecord" 
							LabelClickAction="SortByMultipleFields"  
							AllowEdit="True"
							AllowRecordFiltering="True" />
	</igDP:XamDataGrid.FieldSettings>

	<igDP:XamDataGrid.FieldLayoutSettings>
		<igDP:FieldLayoutSettings AutoGenerateFields="False"  
								  HighlightAlternateRecords="True" 
								  AllowDelete="False" 
								  FilterClearButtonLocation="RecordSelector" 
								  FilterRecordLocation="OnTopFixed" 
								  FilterUIType="Default" />
	</igDP:XamDataGrid.FieldLayoutSettings>

</igDP:XamDataGrid>

Thank you for your help, Yanko.

Regards,

Mike Malter

Hello Mike,

Thank you for your feedback.  I have tried to compile the code but there are some errors. Would you please ,if possible, send us an isolated sample application where this issue occurs with a back-up file of your database in order to provide you with more accurate assistance.

Looking forward to hearing from you.

Yanko,

Thanks for bearing with me on this issue.  I looked at this further and realized that I had a search condition active on a column that had its value changed during the adding of the record.  The value that was being set was the opposite of what I expected, and so it would make sense that the new row would disappear once any other row is clicked because then the filter applies.

So, thanks again for looking at this for me.

Mike

Hello Mike,

I am glad that you have solved your issue. I believe this might help other users with similar issues.