Setting the Format for a columns in a DataBoundGrid

[Rick Davis]

I am trying to format a column of data in a grid.
If I do not try to set the format of the column the data shows in the grid.

Using the debugger I have checked the InternalColumns collection and there are no columns defined.

What else do I need to check?

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aGrid.DataSource = fact.DefaultView; // works OK

GridStyleInfo style = aGrid.Binder.InternalColumns["TotalProbability"].StyleInfo; // Fails see below

style.CellValueType = typeof(System.Double);
style.Format = "P";
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Error Message.
Object reference not set to an instance of an object.

[Administrator]

The grid.Binder.InternalColumns are only used if you have not explicitly added GridBoundColumns to the grid.GridBoundColumns collection. If you have added such GridBoundCOlumns, then then you woul duse that collection to get the GridBoundColumn.StyleInfo. The other thing to check is that the column name is exactly correct, including case. Here is a little sample showing things working. If you cannot spot the problem, can you post a little sample showing it. GridBoundColumns_1086.zip

[Rick Davis]

I have not explicted added the columns, but on the form I have a total of 6 different girds on different tabs. I have been able to duplicate the problem by creating a new form with a tab control with 6 tabs and a grid on each tab. When I try format the column on the any of the grids I get the same error. >The grid.Binder.InternalColumns are only used if you have not explicitly added GridBoundColumns to the grid.GridBoundColumns collection. If you have added such GridBoundCOlumns, then then you woul duse that collection to get the GridBoundColumn.StyleInfo. > >The other thing to check is that the column name is exactly correct, including case. > >Here is a little sample showing things working. If you cannot spot the problem, can you post a little sample showing it. > >GridBoundColumns_1086.zip > >

[Administrator]

You did not include your sample. Here is a sample showing a tabcontrol and 6 grids without a problem. I am using 2.1.0.9. What version are you using? Can you post your sample? GridBoundColumns_8343.zip