Why the UI Spy get the runtimeID is null

Question

Hi all:

When I implemented the UI automation for DataGriadview, I found that: the runtimeID of cell in the datagridview is null.

The code is as followed:

public class CommonDataGridView : System.Windows.Forms.DataGridView,

        IRawElementProviderFragmentRoot,

        IGridProvider,

        ISelectionProvider,

        IScrollProvider,

        ITableProvider

{

      ……..

       int[] IRawElementProviderFragment.GetRuntimeId()

      {

          return null;

      }

 

      ……..

}

 

internal class CommonDataGridViewRow :

        IRawElementProviderFragmentRoot,

        IRawElementProviderFragment,

        ISelectionItemProvider,

        IScrollItemProvider

{

……

int[] IRawElementProviderFragment.GetRuntimeId()

        {

            return new int[] { AutomationInteropProvider.AppendRuntimeId, _row.Index };

        }

 

……

}

 

internal class CommonDataGridViewCell :

        IRawElementProviderFragment,

        IGridItemProvider,

        IValueProvider,

        ISelectionItemProvider,

        IScrollItemProvider

{

……

       int[] IRawElementProviderFragment.GetRuntimeId()

        {

            return new int[] { AutomationInteropProvider.AppendRuntimeId, _cell.ColumnIndex};

        }

……

}

For CommonDataGridView and CommonDataGridViewRow, the runtimeID for them in the UISpy can be returned the right value.

But for CommonDataGridViewCell, the runtimeID in the UISpy is null.

Could anyboby help me research the above code, is there any issue in it?

Or is there any other setting for runtimeId?

Thanks very much!

Answer 1

Hello Paddy_82,

Could you please translate your issue into Chinese? Here is Chinese fourm, if you want to solve your problem in English you can post your issue on English fourm. It will be a benefit  to other committees.

Thanks for your understanding.

Regards,

---

Vicky Song [MSFT]
MSDN Community Support | Feedback to us
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Answer 2

Hi，Paddy_82

    I think you could set a breakpoint and watch a few of field regarding to the problem.

    or press F11 to step into and a few of field regarding to the problem

 

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周雪峰