System.Data.DataColumnCollection public sealed class DataColumnCollection : InternalDataCollectionBase Documentation public DataColumn this[int index] { get; } public DataColumn this[string name] { get; } public event CollectionChangeEventHandler CollectionChanged public DataColumn Add() public void Add(DataColumn column) public DataColumn Add(string columnName) public DataColumn Add(string columnName, Type type) public DataColumn Add(string columnName, Type type, string expression) public void AddRange(DataColumn[] columns) public bool CanRemove(DataColumn column) public void Clear() public bool Contains(string name) public void CopyTo(DataColumn[] array, int index) public int IndexOf(DataColumn column) public int IndexOf(string columnName) public void Remove(DataColumn column) public void Remove(string name) public void RemoveAt(int index)