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Ticket T958016
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how to make a lower level in a grid view the main level and then drop the old mainlevel ?

created 4 years ago

I need to use PLinqServerModeSource but without creating a class for the enitity.
This is because the source of my GridView can change complete in runtime, it can show a different table/view depending on the choices of the user.
I discovered that the GridControl can use a DataView to show all data and show correct headers
But DataView is not enumerable so I cannot use it as source for the PLinqServerModeSource

But if I make a List<DataRowView> and put the first DataRowView from my datatable.DefaultView it, the gridcontrol is showing all correct but not on the main level but it created a new sublevel.
So I need to move this sublevel so it becomes the main level and then drop or hide the original main level.
How can I do that ?

If someone knows how to use the DefaultView of the DataTable without all this hassle that would be even better off course

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Answers approved by DevExpress Support

created 4 years ago

To display a specific detail in the Grid, you can either load only this detail from the server or assign a detail available at your data source level as a member (property).
So, if your data source has the following structure:

C#
DataSet dataSet = new DataSet();
dataSet.Tables.Add(CustomerDataTable);
dataSet.Tables.Add(PersonDataTable);
DataColumn keyColumn = dataSet.Tables["Customers"].Columns["ID"];
DataColumn foreignKeyColumn = dataSet.Tables["Persons"].Columns["ID"];
dataSet.Relations.Add("CustomersPersons", keyColumn, foreignKeyColumn);

the code to display the Persons detail table can be the following:

C#
GridControl.DataSource = dataSet.Tables[""Persons""];

As for the use of PLinqServerModeSource, let's continue our discussion in your other ticket where you asked a similar question:
how to use DataTable.DefaultView as datasource for PLinqServerModeSource

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