change-find-strategy.md

title	page_title	description	previous_url	position
Change Find Strategy	Change Find Strategy	Test Studio is an innovative and easy-to-use automated web, WPF and load testing solution. Test Studio tests support essential technologies like ASP.NET AJAX, Silverlight, PHP and MVC. HTML5, Testing framework, functional testing, performance testing, load testing, exploratory testing, manual testing.	/user-guide/code-samples/silverlight/change-find-strategy.aspx, /user-guide/code-samples/silverlight/change-find-strategy	1

#Change Silverlight Find Strategy#

The default behavior of Test Studio and the Telerik Testing Framework is to time out after a certain interval if the element is not found.

I would like to avoid the Timeout Exception and perform a different set of steps depending on whether the element is found.

##Solution##

This is possible with a coded solution. Change the SilverlightApp or any FrameworkElement VisualFind.Strategy value to WhenNotVisibleReturnNull.

The example below is against this Silverlight demo site. After navigating there, click DataGrid in the left-hand menu. Then add a coded step:

SilverlightApp app = ActiveBrowser.SilverlightApps()[0];
FindStrategy originalStrategy = app.Find.Strategy;
 
try
{
    app.Find.Strategy = FindStrategy.WhenNotVisibleReturnNull;
    string gridName = "dataGrid";
    DataGrid grid = app.Find.ByName<DataGrid>(gridName);
     
    if (grid != null)
    {
        grid.Wait.ForVisible();
        //Perform actions on the DataGrid
    }
    else   
    {
        //You can throw an exception, or perform alternative steps
        throw new ArgumentException(string.Format("Unable to find the DataGrid named '{0}'!", gridName));
    }
}
finally
{
    app.Find.Strategy = originalStrategy;
}

Dim app As SilverlightApp = ActiveBrowser.SilverlightApps()(0)
Dim originalStrategy As FindStrategy = app.Find.Strategy
 
Try
    app.Find.Strategy = FindStrategy.WhenNotVisibleReturnNull
    Dim gridName As String = "dataGrid"
    Dim grid As DataGrid = app.Find.ByName(Of DataGrid)(gridName)
 
    If grid IsNot Nothing Then
       
        grid.Wait.ForVisible()
    Else
       
        Throw New ArgumentException(String.Format("Unable to find the DataGrid named '{0}'!", gridName))
    End If
Finally
    app.Find.Strategy = originalStrategy
End Try

Note: As is, the IF portion is executed. You can disable step two (treeview item 'DataGrid' select action) to see the ELSE portion execute.