Question

I have two arraylists.
One contains filenames and the other contains failurecount.
These values are from database tables in the code behind.

Now I want to add these two arraylists to one datatable.
Is there a way to do this?

Answer 1

The information you provided is rather limited, so’ I’ll make a wild guess here.

var table = new DataTable();
table.Columns.Add("value1");
table.Columns.Add("value2");

for (int i = 0; i < arrayListOne.Count; i++)
{
    var row = table.NewRow();
    row["value1"] = arrayListOne[i];
    row["value2"] = arrayListTwo[i];
    table.Rows.Add(row);
}

Of course this would only work if both lists have the same length.

If this is not what you want you will have to add more information.