var listlistToArray = new List<string>listToArray<string>();
foreach (DataColumn dataCol in dt.Columns)
listlistToArray.Add(dataCol.ColumnName);
listlistToArray.ToArray();
Hope it helps.
You can also use this way
var list = new List<string>();
foreach (DataColumn dataCol in dt.Columns)
list.Add(dataCol.ColumnName);
list.ToArray();
Hope it helps.
You can also use this way
var listToArray = new listToArray<string>();
foreach (DataColumn dataCol in dt.Columns)
listToArray.Add(dataCol.ColumnName);
listToArray.ToArray();