string[][] jagged = new string [100][];

//...jagged array is populated...

dataGridView1.DataSource = jagged;

//
// 1. Create two dimensional array
//

const int  dim = 1000;

double[,]  array = new double[dim,dim];

Random ran = new Random();
for(int r = 0; r < dim; r++)
{
    for(int c = 0; c < dim; c++)
    {
        array[r,c] = (ran.Next(dim)); // fill it with random numbers.
    }
}

// 2. Create ArrayDataView class in which
// constructor you pass the array
// and assign it to DataSource property of DataGrid.

 dataGrid1.DataSource = new ArrayDataView(array);

string[][] arr = new string[2][];

arr[0] = new String[] {"a","b"};
arr[1] = new String[] {"c","d"};

DataGrid1.DataSource = arr[0];
DataGrid1.DataBind();//The result is: a,b in datagrid

List<string> names = new List<string>(new string[]
{
    "John",
    "Frank",
    "Bob"
});

var bindableNames =
    from name in names
    select new {Names=name};

dataGridView1.DataSource = bindableNames.ToList();

string[][] stringRepresentation = ds.Tables[0].Rows
    .OfType<DataRow>()
    .Select(r => ds.Tables[0].Columns
        .OfType<DataColumn>()
        .Select(c => r[c.ColumnName].ToString())
        .ToArray())
    .ToArray();