How to empty the cells of a DataGridView in C#?
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10-07-2019 - |
Question
I've found questions similar on SO already, all over the net actually. Though I haven't found a working answer yet.
So I'm working in a windows form application using Visual studio 2008. Language is C#
I have a DataGridView that is not bound to a DataSource.
so:
MyDataGridView.DataSource = null;
wont work...
I've also tried
MyDataGridView.Rows.Clear();
But this removes all my custom made rows.
So I'm now looking for a way to just empty the contents of all cells (not including header cells). So it shouldn't affect anything else but the contents of the cells itself.
Solution 2
I just figured out how to do it myself, I simply loop trough the table, clearing every cell I encounter.
note: "dgUsers" is the name of my DataGridView
for (int i = 0; i < dgUsers.Columns.Count ;i++ )
{
for (int j = 0; j < dgUsers.Rows.Count; j++)
{
dgUsers.Rows[j].Cells[i].Value = "";
}
}
I bet there is a better way to do this and this might look a bit sloppy but it does the job. Yet I'd like to hear a better solution that clears the data.
OTHER TIPS
for (int i = 0; i < MyDataGridView.Columns.Count ;i++ )
{
for (int j = 0; j < MyDataGridView.Rows.Count; j++)
{
MyDataGridView.Rows[j].Cells[i].Value = DBNull.Value;
}
}
the code by pieter888 didnt worked for me the code i figured out was
int cnt=dataGridView1.Rows.Count;
for (int i = 0; i < cnt; i++)
{
dataGridView1.Rows.Remove(dataGridView1.Rows[0]);
}
I believe that using LINQ you can make it cleaner, specially with implicit types:
foreach (var cell in from DataGridViewRow row in dgv.Rows from DataGridViewCell cell
in row.Cells select cell){
cell.Value = string.Empty;
}
you can clear the entire grid by using
gridviewname.columns.clear();