DataGridView Hide/Unhide Columns

It shouldn't be too difficult to do that.

Try something like this:

private void Form1_Load(object sender, EventArgs e)

{

ContextMenuStrip strip = new ContextMenuStrip();

strip.Items.Add("-- Visible if checked --");

for (int i = 0; i < dataGridView1.Columns.Count; i++)

{

ToolStripMenuItem tsmi = new ToolStripMenuItem();

tsmi.Tag = i;

tsmi.Text = dataGridView1.Columns[i].HeaderText;

tsmi.Checked = true;
// add code to set this to false if not visible by default

tsmi.Click += toolStripMenuItem_Click;

strip.Items.Add(tsmi);

}

dataGridView1.ContextMenuStrip = strip;

}

// add this handler manually rather than via designer

private void toolStripMenuItem_Click(object sender, EventArgs e)

{

ToolStripMenuItem tsmi = (ToolStripMenuItem)sender;

tsmi.Checked = !tsmi.Checked;

int colNumber = (int)tsmi.Tag;

DataGridViewColumn col = dataGridView1.Columns[colNumber];

col.Visible = !col.Visible;

}

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