Question

I have created usercontrol GridEx:UserControl. On that control I putted GridControl (DevExpress datagrid control). I have created Property DataGrid which return inner datagrid control (previously added) How to enable design support for DataGrid ? I try to put

[Designer('DevExpress.XtraGrid.Design.GridControlDesigner,     DevExpress.XtraGrid.v8.2.Design', typeof(IDesigner))]  

but I get this error: Failed to create component ‘DataGridControl’.
The error message follows:

System.NullReferenceException: Object reference not set to an instance of an object.   at DevExpress.XtraGrid.Design.GridControlDesigner.Initialize(IComponent component)   at System.ComponentModel.Design.DesignerHost.AddToContainerPostProcess(IComponent component, String name, IContainer containerToAddTo)   at System.ComponentModel.Design.DesignerHost.Add(IComponent component, String name)   at System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design. IDesignerHost.CreateComponent(Type componentType, String name)    at System.ComponentModel.Design.DesignerHost.System.ComponentModel. Design.IDesignerHost.CreateComponent(Type componentType)    at System.Drawing.Design.ToolboxItem.CreateComponentsCore(IDesignerHost host)    at System.Drawing.Design.ToolboxItem.CreateComponentsCore(IDesignerHost host, IDictionary defaultValues)    at System.Drawing.Design.ToolboxItem.CreateComponents(IDesignerHost host, IDictionary defaultValues)    at System.Windows.Forms.Design.OleDragDropHandler.Cre... 

Answer 1

Solution can be founded here:

http://www.devexpress.com/kb=A577