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// Display both date and time in column
EpiUltraGrid grid = (EpiUltraGrid)csm.GetNativeControlReference("{GUID}");

grid.DisplayLayout.Bands[0].Columns[2].MaskInput = "hh:mm tt"; 
grid.DisplayLayout.Bands[0].Columns[2].MaskDisplayMode = Infragistics.Win.UltraWinMaskedEdit.MaskMode.IncludeBoth;

// Clear the dashboard results
MainController.AppControlPanel.HandleToolClick("ClearTool", new
Infragistics.Win.UltraWinToolbars.ToolClickEventArgs(MainController.MainToolManager.Tools["ClearTool"], null));

// Refresh the dashboard query
MainController.AppControlPanel.HandleToolClick("RefreshTool", new
Infragistics.Win.UltraWinToolbars.ToolClickEventArgs(MainController.MainToolManager.Tools["RefreshTool"], null));