FeatureDataGrid_SelectionChanged event

Question

I just upgaded an application from 2.1 API to 3.0 API to take advantage of some new functionality.  Currently I haven't changed any code other than swapping out the new assemblies.

Here's my issue:

With 2.1 The FeatureDataGrid_SelectionChanged Event doesn't fire until I select a record in the feature data grid, so it doesn't fire upon the selection of the graphics but in 3.0 the event fires right after a selection (spatial or attribute) selection is made (when the feature data grid is first populated). 
  private void FeatureDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
}

How do I get the code not to fire when the feature data grid is first populated?

Dave

DavidAshton · Answer

Now I"ve started over.  I took the TabbedRibbon Template commented out the code for the DataGrid x:Name="QueryDetailsDataGrid"
and added code to use a FeatureDataGrid = MyFDG instead.  I added a SelectionChanged="MyDataGrid_SelectionChanged" Event and I'm still running into the same issue.  I know the selection change event is firing correctly so it is not a problem with that event but a problem with my code.  I'm attaching the zip file with the xaml and C# Main Pages in hopes someone can look at.  You can down load the tabbed ribbon template and swap out my xaml and C# page with the originals and should be rockin,  but in short (for the third or fourth time) here's the deal:

Below is my code in question and on the First click on a row in FDG the code inside the for loop dose not execute but on the second click/ selection change of the row in the FDG it gets executed but the message box displays the previous state name (from the first click/selection)
private void MyDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
                {
                  
                    
                    if (MyDataGrid.SelectedItem != null)
                    {

if (MyDataGrid.SelectedGraphics.Count == 1)
                        {
                            var graphics = (sender as FeatureDataGrid).SelectedGraphics;
                            foreach (var g in graphics)
                            {
                                // get id 
                                var id = g.Attributes["STATE_NAME"];

StateName = (string)id;

break;
                            }
                            MessageBox.Show(StateName);

}
                    }
                }

Dave

MainPage.zip

DavidAshton · Answer

Still working on this horrible issue...hoping someone might take a look and get me going in a new direction.  I've rewrote the code over and over and it just doesn't work properly.

Dave

DavidAshton · Answer

I just wanted to follow up with some more information in hopes someone will respond and shed some light on my issue.

As stated I originally built my project with API 2.1 and everything worked great. Now I''ve test the exact same code in 2.3 API and 3.0 API and they are both not working or responding differently.

As stated earlier this code in 2.1 passes the correct information on the first FDG row click (selection change)

private void QueryDetailsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
 {
 if (QueryDetailsDataGrid.SelectedItem != null) I had to added this if statement because in the 2.1 API the SelectionChange event doesn't fire/excute when the FDG is first populated but it does in 2.3. and 3.0. In 2.1 it doesn't excute until and record is selected/clicked in the FDG. 
 {
 var graphics = (sender as FeatureDataGrid).SelectedGraphics;
 foreach (var g in graphics)  First click on a row in FDG in 2.1 g gets populated and the code inside the for is excuted but it is not until the second click/ selection change of the FDG in 2.3 and 3.0 that makes this work. 
 {
 // get id 
 var id = g.Attributes["APN"];

string apn10 = (string)id;

IDValue.Text = apn10;

MessageBox.Show(apn10); In 2.3 and 3.0 it is always reporting the previous row selected not sure why I think because of the problem above.

PARCELIDPASS.Text = apn10;

}
 }

Thanks in advance for looking and helping.

Dave