i m using following lines to display the Mask with "loading message"

Ext.Net.GridPanel gp = this.GetCmp<GridPanel>("gridPanel1");
gp.SetLoading(new LoadMask { Msg = "Loading data...", ShowMask = true}, true);
but Loading... message is not getting hide after loading the data in it.

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or let me know what tis the exact syntax in MVC to use Loading msg in gridpanel while loading the data.
waiting for reply