Dynamic add to context menu only works 1st time??

E

Ed Sutton

I am dynamically appending to a context menu when user right mouse clicks on
a treeView. The first time I right-mouse click I see the appended menu.
Subsequently, the menu items I append do not display.

this.contextMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[]
{this.mnuParent});

private void treeView1_MouseDown(object sender,
System.Windows.Forms.MouseEventArgs e)
{
if( e.Button == MouseButtons.Right )
{
mnuParent.MenuItems.Clear();
for( int iNumMenuItem = 0; iNumMenuItem < 9; iNumMenuItem++)
{
MenuItem mnu = new MenuItem("Test Menu " + iNumMenuItem );

mnuParent.MenuItems.Add(mnu);
}
contextMenu1.Show(this, new System.Drawing.Point(e.X, e.Y));
}
}

Thanks in advance for any tips or suggestions,

-Ed Sutton
 
T

timtos

I think they do display but not every time. ;-)
Saying that the rest of your code is correct,
the only problem you have is that you used

contextMenu1.Show(this, new System.Drawing.Point(e.X, e.Y));

and not

contextMenu1.Show(this.treeView1, new System.Drawing.Point(e.X, e.Y));

With this call you have associated the contextMenu with the form and not with the treeView Control.
Hope this helps! Greetings,
timtos.
 
E

Ed Sutton

timtos,

Thank you very much for looking at this.

I have the same problem after changing the code as you suggested. The menu
displays every time I right-mosue click, but only the first time displays
the dynamically created menu.

contextMenu1.Show(this.treeView1, new System.Drawing.Point(e.X, e.Y)).

I will go beat my head on the wall some more...

Thank you very much for your suggestion,

-Ed
I think they do display but not every time. ;-)
Saying that the rest of your code is correct,
the only problem you have is that you used

contextMenu1.Show(this, new System.Drawing.Point(e.X, e.Y));

and not

contextMenu1.Show(this.treeView1, new System.Drawing.Point(e.X, e.Y));

With this call you have associated the contextMenu with the form and
not with the treeView Control.
Hope this helps! Greetings,
timtos.

Ed Sutton said:
I am dynamically appending to a context menu when user right mouse
clicks on
a treeView. The first time I right-mouse click I see the appended
menu.
Subsequently, the menu items I append do not display.

this.contextMenu1.MenuItems.AddRange(new
System.Windows.Forms.MenuItem[] {this.mnuParent});

private void treeView1_MouseDown(object sender,
System.Windows.Forms.MouseEventArgs e)
{
if( e.Button == MouseButtons.Right )
{
mnuParent.MenuItems.Clear();
for( int iNumMenuItem = 0; iNumMenuItem < 9; iNumMenuItem++)
{
MenuItem mnu = new MenuItem("Test Menu " + iNumMenuItem
);

mnuParent.MenuItems.Add(mnu);
}
contextMenu1.Show(this, new System.Drawing.Point(e.X, e.Y));
}
}

Thanks in advance for any tips or suggestions,

-Ed Sutton
Click to expand...
Click to expand...
 
T

timtos

You still have the same problem?
That is nearly not possible. I´ve tried it out myself now and for me your source is working!
Have you associated the contextMenu with the treeView?

Greetings,
timtos.

Ed Sutton said:
timtos,

Thank you very much for looking at this.

I have the same problem after changing the code as you suggested. The menu
displays every time I right-mosue click, but only the first time displays
the dynamically created menu.

contextMenu1.Show(this.treeView1, new System.Drawing.Point(e.X, e.Y)).

I will go beat my head on the wall some more...

Thank you very much for your suggestion,

-Ed
I think they do display but not every time. ;-)
Saying that the rest of your code is correct,
the only problem you have is that you used

contextMenu1.Show(this, new System.Drawing.Point(e.X, e.Y));

and not

contextMenu1.Show(this.treeView1, new System.Drawing.Point(e.X, e.Y));

With this call you have associated the contextMenu with the form and
not with the treeView Control.
Hope this helps! Greetings,
timtos.

Ed Sutton said:
I am dynamically appending to a context menu when user right mouse
clicks on
a treeView. The first time I right-mouse click I see the appended
menu.
Subsequently, the menu items I append do not display.

this.contextMenu1.MenuItems.AddRange(new
System.Windows.Forms.MenuItem[] {this.mnuParent});

private void treeView1_MouseDown(object sender,
System.Windows.Forms.MouseEventArgs e)
{
if( e.Button == MouseButtons.Right )
{
mnuParent.MenuItems.Clear();
for( int iNumMenuItem = 0; iNumMenuItem < 9; iNumMenuItem++)
{
MenuItem mnu = new MenuItem("Test Menu " + iNumMenuItem
);

mnuParent.MenuItems.Add(mnu);
}
contextMenu1.Show(this, new System.Drawing.Point(e.X, e.Y));
}
}

Thanks in advance for any tips or suggestions,

-Ed Sutton
Click to expand...
Click to expand...
Click to expand...
 
E

Ed Sutton

You still have the same problem?
That is nearly not possible. I´ve tried it out myself now and for me
your source is working!
Have you associated the contextMenu with the treeView?
Click to expand...

Not intentionally. I simply drag and dropped a contextMenu on my main form.

How do you associated a contextMenu a treeView control?

I pasted all code from my main form class below.

-Ed

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace WindowsApplication3
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TreeView treeView1;
private System.Windows.Forms.ContextMenu contextMenu1;
private System.Windows.Forms.MenuItem mnuParent;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.treeView1 = new System.Windows.Forms.TreeView();
this.contextMenu1 = new System.Windows.Forms.ContextMenu();
this.mnuParent = new System.Windows.Forms.MenuItem();
this.SuspendLayout();
//
// treeView1
//
this.treeView1.ImageIndex = -1;
this.treeView1.Location = new System.Drawing.Point(48, 32);
this.treeView1.Name = "treeView1";
this.treeView1.SelectedImageIndex = -1;
this.treeView1.Size = new System.Drawing.Size(184, 224);
this.treeView1.TabIndex = 0;
this.treeView1.MouseDown += new
System.Windows.Forms.MouseEventHandler(this.treeView1_MouseDown);
//
// contextMenu1
//
this.contextMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.mnuParent});
//
// mnuParent
//
this.mnuParent.Index = 0;
this.mnuParent.Text = "Append Here";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.treeView1});
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void treeView1_MouseDown(object sender,
System.Windows.Forms.MouseEventArgs e)
{
if( e.Button == MouseButtons.Right )
{
System.Diagnostics.Debug.WriteLine("Build menu..");
mnuParent.MenuItems.Clear();
for( int iNumMenuItem = 0; iNumMenuItem < 9; iNumMenuItem++)
{
// Create a list of logger versions to export
string strMenuText = "Version " + (iNumMenuItem);
MenuItem mnu = new MenuItem(strMenuText);

mnuParent.MenuItems.Add(mnu);
}
contextMenu1.Show(treeView1, new System.Drawing.Point(e.X, e.Y));
}
}
}
}
 
T

timtos

Ed Sutton said:
How do you associate a contextMenu a treeView control?
Click to expand...

You can do it with visual studio. Just look for the property ContextMenu
in the TreeView properties! There is a combobox, where you can select
your contextMenu.

Or do it in the code - like this:
this.treeView.ContextMenu = this.contextMenu1;

Hope this finally helps ;-)
Greetings,
timtos.
 
E

Ed Sutton

timtos,

You did it! IT now works perfectly. You are good. :)

I will now cease banging my head on the wall.

Thank you, thank you, , thank you..

-Ed
 

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