DataGridView column auto adjust width and resizable

Question

I am wondering if it is possible to have a dataGridView column to adjust automatically its width to its content and at the same time being resizable by the user ?

Here what i have tried so far :

dataGridView.AllowUserToResizeColumns = true;
dataGridView.Columns[0].AutoSizeMode=DataGridViewAutoSizeColumnMode.DisplayedCells;
dataGridView.Columns[0].Resizable = DataGridViewTriState.True;

But, I am still unable to resize the column size manually.

If anyone already faced this issue or have any idea let me know.

Thanks.

Answer 1

I finally find a way to do what I wanted.

The idea is to

• let the dataGridView resize the columns itself to fit the content, and then
• change theAutoSizeColumnMode and set the width with the value you just stored.

Here is the code:

dataGridView.Columns[i].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
int widthCol = dataGridView.Columns[i].Width;
dataGridView.Columns[i].AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
dataGridView.Columns[i].Width = widthCol;

Hope this will help.

Answer 2

Building on the code above to iterate it for all columns and also auto adjust the width of the DataGridView

//initiate a counter
int totalWidth = 0;

//Auto Resize the columns to fit the data
foreach (DataGridViewColumn column in mydataGridView.Columns)
{
    mydataGridView.Columns[column.Index].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
    int widthCol = mydataGridView.Columns[column.Index].Width;
    mydataGridView.Columns[column.Index].AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
    mydataGridView.Columns[column.Index].Width = widthCol;
    totalWidth = totalWidth + widthCol;
}
//the selector on the left of the DataGridView is about 45 in width
mydataGridView.Width = totalWidth + 45;