Select a row of datagrid using UI Automation

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C#

UI

DataGrid

automation

Hi,
I'm writing a UI automation software. I need to select a row in the datagrid and then click on the run button. I tried most of the example codes in the internet and they didn't work for me. For example for selecting a gridview row:

When I write the following code:

AutomationElement dataGrid = this.mainWindow.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.AutomationIdProperty, "2885"));

if (dataGrid != null) {

GridPattern pattern = GetGridPattern(dataGrid);
AutomationElement tempElement = pattern.GetItem(1, 1);
tempElement.SetFocus();
}

I receive the error: "Target element cannot receive focus." which is related to the last line.

I also tried the code:

AutomationElement mainGrid = // find the grid in the window var columnCount = (int)mainGrid.GetCurrentPropertyValue(GridPattern.ColumnCountProperty);

var mainGridPattern = (GridPattern)mainGrid.GetCurrentPattern(GridPattern.Pattern);

var rowToSelect = 2;

// select just the first cell var item = mainGridPattern.GetItem(rowToSelect, 0);

var itemPattern = (SelectionItemPattern)item.GetCurrentPattern(SelectionItemPattern.Pattern);

itemPattern.Select();

but I and I received the error :"Unsupported Pattern".

I should mention that I'm using UI Spy for retrieving the elements properties.

Could you explain me what's wrong and how should I select a row?