Data Table + delete a row in c# using loop

Question

I have a data table and I want to delete a row here is my code it\'s throwing me an exception

foreach (DataRow row in dt1.Rows)
{
    if ((row[\"Name\"] == \         


        

Answer 1

Instead of using dt1.Rows, use dt1.Select()

The goal here is not to use the collection itself, but rather an array of row that is not the Rows collection

Answer 2

This is how I did it when I ran into this issue.

            Dim index As Integer = 0
            Dim count As Integer = resultsDT.Rows.Count - 1
            For i As Integer = 0 To count
                If resultsDT.Rows(index).Item("something") = "something" Then
                    resultsDT.Rows(index).Delete()
                    resultsDT.AcceptChanges()
                    index = index - 1
                End If

                index = index + 1
                i = i + 1
            Next

Answer 3

Create a list of rows to delete while iterating over DataTable.Rows, then delete them all separately.

Non-LINQ solution:

List<DataRow> rowsToDelete = new List<DataRow>();
foreach (DataRow row in dt1.Rows)
{
    if ((row["Name"] == "Select a Lookbook") || 
        (row["Name"] == "Create a new Lookbook"))
    {
        rowsToDelete.Add(row);
    }
}
foreach (DataRow row in rowsToDelete)
{
    row.Delete();
}
dt1.AcceptChanges();

LINQ solution:

List<DataRow> rowsToDelete = dt1.Rows.AsEnumerable()
    .Where(row => (row["Name"] == "Select a Lookbook") || 
                  (row["Name"] == "Create a new Lookbook"))
    .Tolist();
foreach (DataRow row in rowsToDelete)
{
    row.Delete();
}
dt1.AcceptChanges();