WPF DataGrid ItemsSource绑定Linq

Question

Here is my problem. I have a WPF datagrid and I am binding the .ItemsSource to a linq query IEnumerable result. This works great. When I run the program the data is loaded correctly in the datagrid. My problem is too much data is displayed. (IE users don't need to see ID fields, etc). What I am attempting to do is after I bind to the .ItemsSource, I want to hide a few columns. I have found the .Visibility and attempting to set it, but the columns object is empty. After the binding I have tried the following methods: .Items.Refresh() and .UpdateLayout().

My question is what method do I need to call to refresh the columns after I set the .ItemsSource?

Answer 1

A different solution could be changing your linq query. Simply select the columns you wish to display, like so:

dataGrid.ItemsSource = myquery.Select(x => new { Name = x.Name, Age = x.Age });

Answer 2

Why not explicitly setup your DataGrid? http://www.wpftutorial.net/DataGrid.html -- This will help you be able to setup your DataGrid manually instead of having it use AutoGenerated columns.

Answer 3

If you want to use the .Visibility of DataGrid column, do it after loading of data in the DataGrid. DataGrid is not getting loaded just after the binding of ItemSource; that's why you are getting empty column objects.

Hope this will work for you.