Visibility change causes menu items to scroll (bug?)

[Andrus]

To reproduce, run code, open file menu, press up and down arrows to move out
of menu.
Menu items are scrolled and blank items appears in end.

I need to change visibility of menu items at runtime.
How to fix this ?
Is this .NET 3.5 bug ?

Andrus.
using System.Windows. Forms;

static class Program
{
static void Main()
{
Application.Run (new Form1());
}
}

class Form1 : Form
{
public Form1()
{
var menuStrip1 = new MenuStrip();
var fileToolStripMe nuItem = new ToolStripMenuIt em();
menuStrip1.Item s.AddRange(new ToolStripItem[] {
fileToolStripMe nuItem });
for (int i = 0; i < 10; i++)
{
var item = new ToolStripMenuIt em("Item" + i.ToString());
fileToolStripMe nuItem.DropDown Items.Add(item) ;
if (i < 5)
item.Visible = false;
}

fileToolStripMe nuItem.Text = "File";
Controls.Add(me nuStrip1);
MainMenuStrip = menuStrip1;
}
}

[Nicholas Paldino [.NET/C# MVP]]

Andrus,

The only immediate workaround I can see would be to not add the items if
you are not going to make them visible. I took your example and didn't add
the items if they were not visible, and didn't get that effect.

I would definitely register this bug on the Microsoft Connect site.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m

"Andrus" <ko********@hot .eewrote in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

To reproduce, run code, open file menu, press up and down arrows to move
out of menu.
Menu items are scrolled and blank items appears in end.

I need to change visibility of menu items at runtime.
How to fix this ?
Is this .NET 3.5 bug ?

Andrus.
using System.Windows. Forms;

static class Program
{
static void Main()
{
Application.Run (new Form1());
}
}

class Form1 : Form
{
public Form1()
{
var menuStrip1 = new MenuStrip();
var fileToolStripMe nuItem = new ToolStripMenuIt em();
menuStrip1.Item s.AddRange(new ToolStripItem[] {
fileToolStripMe nuItem });
for (int i = 0; i < 10; i++)
{
var item = new ToolStripMenuIt em("Item" + i.ToString());
fileToolStripMe nuItem.DropDown Items.Add(item) ;
if (i < 5)
item.Visible = false;
}

fileToolStripMe nuItem.Text = "File";
Controls.Add(me nuStrip1);
MainMenuStrip = menuStrip1;
}
}

[Andrus]

The only immediate workaround I can see would be to not add the items

if you are not going to make them visible. I took your example and didn't
add the items if they were not visible, and didn't get that effect.

I have Winforms menu system designed using Windows forms Designer in MDI
parent form.
Some menu items may not be visible to user who logs in.

I have also command "login as different user" in this MDI parent form which
allows other user to log in without exiting main form.
For this command I need to make some other menu items visible.

How to make items visible/invisible in this case ?

I would definitely register this bug on the Microsoft Connect site.

Done.
https://connect.microsoft.com/Visual...dbackID=357453

Andrus.