Question

I have a DataGridView similar to the one below:

ID    Name    Data1   Data2
1     MM      X       1000
2     ST      Y       1000
3     EC      Z       1000
4     JT      T       1000

I also have a list of row indices that are important to me.

List<int> myList = new List<int>();
myList.Add(1);
myList.Add(2);

Now what I want to do is grab the values from the Data1 column in my DataGridView that corresponds to those row indices. So what I am looking to get out (in this example) is some datatype which contains “Y” and “Z”.

I don’t want to iterate over the DataGridView because I have a large sample of data there. Is there a way to do this with LINQ? I’m still a LINQ beginner.

Answer 1

Use the Enumerable.Select method something like this:

IEnumerable<string> columnValues = myList.Select(x => data.Rows[x].Cells["Data1"].Value);

This code assumes that a reference to your DataGridView is stored in the variable data.