How to reset the Datasource property of a Datagridview and not delete the Header columns?

Question

I’m filling my Datagridview with a list of objects, but when I fill the grid for the first time it’s all right. When Seto the Datasource property is null, the grid columns are deleted.

There is the possibility to reset the Datasource property without deleting the header columns ?

Code snippet I use:

if (listVetObj.Count > 0)
{
    dgvControle.DataSource = listVetObj;
    dgvControle.Update();
    dgvControle.Refresh();

    txtQtdeLinhas.Text = dgvControle.RowCount.ToString();
    txtQtdeLinhas.Refresh();
}

When resetting the property within a method the header columns are deleted:

Code:

private void LimparCampos()
{          
    dgvControle.DataSource = null;
    dgvControle.Update();
    dgvControle.Refresh();
}

Answer 1

Well you can make an empty list so he doesn’t disassemble yours controle and remains the same layout

private void LimparCampos()
{          
    dgvControle.DataSource = new List<Class>();
    dgvControle.Update();
    dgvControle.Refresh();
}

Where the Class is the name of your class that carries this controle.

_References:

• How to associate data to the Datagridview control of Windows Forms
• Datagridview.Datasource Property