Cannot call Opendialog from C# winform

Hi



I create a winform (C#) call OpenFileDialog1.ShowDialog as below:

public void btnBrowse_Click(object sender, EventArgs e)

{

String[] fileNames;

OpenFileDialog dialog = new OpenFileDialog();

dialog.Filter = "Excel files (*.xls)|*.XLS";

dialog.InitialDirectory = "D:";

dialog.Title = "Select a file";

if (dialog.ShowDialog() == DialogResult.OK)

{

    fileNames = openFileDialog1.FileNames;

}

}

--> Then I call this form :

var obj = dotNET["AutomationTestTool"]["Form1"]["zctor"]();

var res = obj["ShowDialog"]();



TestComplete show that form, but when I click on button Browse, the winform is hang and not work. Please help me resolve it.



Thanks.