How Can I Improve DataGridView Refresh Rate for Frequent Updates?

"How can I improve the refresh rate of my DataGridView for frequent updates?"

Refresh performance of a DataGridView can be affected by the number of cells being updated and the desired update rate. To optimize performance, it's recommended to enable double buffering for the DataGridView.

Enabling double buffering

Normally, double buffering is not directly accessible in DataGridView. To access this property, you can create a subclass or use reflection.

Subclass:

Define a new class that inherits from DataGridView and exposes the DoubleBuffered property:

public class DBDataGridView : DataGridView
{
    public new bool DoubleBuffered
    {
        get => base.DoubleBuffered;
        set => base.DoubleBuffered = value;
    }

    public DBDataGridView()
    {
        DoubleBuffered = true;
    }
}

Then, replace your DataGridView with DBDataGridView in the form.

Reflection:

Use this generic function to set double buffering using reflection:

using System.Reflection;

static void SetDoubleBuffer(Control ctl, bool DoubleBuffered)
{
    typeof(Control).InvokeMember("DoubleBuffered", 
        BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.SetProperty, 
        null, ctl, new object[] { DoubleBuffered });
}

Call the function to enable double buffering for your DataGridView:

SetDoubleBuffer(dataGrid, true);

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