swap rows in datagridview in c#

Question

i have a datagridview which is not related with dataTable.
and i want to swap for example 1st and 10th rows in datagridview.
i use this code for it

int row_1 = 1;
int row_10 = 10;
for(int i=0;i<grid.ColumnCount;i++)
{
  string temp = grid.Rows[row_1].Cells[i].Value.ToString();
  grid.Rows[row_1].Cells[i].Value = grid.Rows[row_10].Cells[i].Value.ToString();
  grid.Rows[row_10].Cells[i].Value = temp;
}

but i want to know is there any simple way to do this??

Indebted

This is not good, you don't need to call Value.ToString() and so on, just store the Value in an object. That will be generic, unlike your code, which only works with strings. – Danielledaniels

Answer 1

var r10 = grid.Rows[9];
var r1 = grid.Rows[0];
grid.Rows.Remove(r1);
grid.Rows.Remove(r10);
grid.Rows.Insert(0, r10);
grid.Rows.Insert(9, r1);

Philae

Answer 2

HI,
Have you tried:

DataGridViewRow temp =grid.Rows[row_1];
grid.Rows[row_1] = grid.Rows[row_10];
grid.Rows[row_10] = temp;

Explosive

I get the message: DataGridViewRowCollection.this[int] cannot be assigned -- it is read only – Tierza

Answer 3

I wanted to comment on this.

While it -may- have been possible to do a straight swap in C# before, like smoore/Gabriels-

DataGridViewRow temp = grid.Rows[row_1].Clone();
grid.Rows[row_1] = grid.Rows[row_10].Clone();
grid.Rows[row_10] = temp;

This is no longer possible, as grid.Rows[index] is read only.

Instead, use DarkSquirrels method of saving the two rows, removing the rows, and re-inserting them swapped.

If somebody knows a better method (as this is like a 6 line method by iteslf without the logic to find the other value) please do comment!

Painkiller

Answer 4

Try:

DataGridViewRow temp = grid.Rows[row_1].Clone();
grid.Rows[row_1] = grid.Rows[row_10].Clone();
grid.Rows[row_10] = temp;

Sink

Answer 5

Just as addition:

if you need interchange more often, put the method above you prefer most in its own class and call the method (e.g. Interchange())

Dwanadwane

Answer 6

This method works fine:

private static void SwapRows(DataGridView grid, int row1, int row2)
{
  if (row1 != row2 && row1 >= 0 && row2 >= 0 && row1 < grid.RowCount && row2 < grid.RowCount)  
  {
    var rows = grid.Rows.Cast<DataGridViewRow>().ToArray();
    var temp = rows[row1];
    rows[row1] = rows[row2];
    rows[row2] = temp;
    grid.Rows.Clear();
    grid.Rows.AddRange(rows);
  }
}

Tierza