How to select displayed columns in datagrid

Question

I'm working on a .NET Compact Framework 3.5 app that includes a DataGrid. I've created a BindingSource using the designer and added the bindingsource as the source of the datagrid. It automatically created columns for every suitable property of my source object type, but I don't want to display all the properties.

How do I specify which columns to display and which ones to hide? I tried playing around with the TableStyles property of the datagrid (both in code and in designer), didn't seem to have any effect.

score 3 · Answer 1 · edited Sep 24 '12 at 01:16

That didn't work for me as the TableStyles collection of the DataGrid control was empty at the point you specify and remains so until a DataGridTableStyle collection is added.

Using your suggestion for setting the correct value for the MappingName property, I achieved the desired result by creating and adding a new DataGridTableStyle object containing only the public fields that were required in the DataGrid.

// Create a DataGridTableStyle to hold all the columns to be displayed in the DataGrid
DataGridTableStyle myTableStyle = new DataGridTableStyle();
myTableStyle.MappingName = myBindingSource.GetListName(null);  // This is the magic line
myTableStyle.GridColumnStyles.Clear();

// Add some DataGridColumnStyles
DataGridTextBoxColumn columnRowId = new DataGridTextBoxColumn();
columnRowId.MappingName = "idx";  //This must match the name of the public property
ColumnRowId.HeaderText = "Record";
tableStyleReportsSummary.GridColumnStyles.Add(columnRowId);

// Add the table style to the DataGrid
myDataGrid.TableStyles.Clear();
myDataGrid.TableStyles.Add(myTableStyle);

score 1 · Accepted Answer · answered Mar 17 '12 at 12:54

Figured it out. I had to add the following line of code in the form's constructor, right after InitializeComponent():

myDataGrid.TableStyles[0].MappingName = myBindingSource.GetListName(null);

Then I was able to change the datagrid's TableStyles property in order to modify the displayed columns as I please.

How to select displayed columns in datagrid

2 Answers2