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Iterating through menustrip Items

, 3 May 2012
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This tip explains how you can iterate through all ToolStripMenuItems of a menu strip.

Introduction

It is quite difficult to set the properties of toolstrip menu items like if you want to disable certain items or make them invisible. It is simple to set them individually, but if you want to iterate through all the items, it's quite difficult. This tip explains how you can iterate through all ToolStripMenuItems of a menu strip.

Background

The given code works on a recursive method call.

Using the Code

private void SetToolStripItems(ToolStripItemCollection dropDownItems)
        {
            try
            {
                foreach (object obj in dropDownItems)
                //for each object.
                {
                    ToolStripMenuItem subMenu = obj as ToolStripMenuItem;
                    //Try cast to ToolStripMenuItem as it could be toolstrip separator as well.

                    if (subMenu != null)
                    //if we get the desired object type.
                    {
                        if (subMenu.HasDropDownItems) // if subMenu has children
                        {
                            SetToolStripItems(subMenu.DropDownItems); // Call recursive Method.
                        }
                        else // Do the desired operations here.
                        {
                            if (subMenu.Tag != null)
                            {
                                subMenu.Visible = UserRights.Where(x => 
                                x.FormID == Convert.ToInt32(subMenu.Tag)).First().CanAccess;
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "SetToolStripItems",
                                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        } 

Points of Interest

Recursive methods are quite useful when you don't know the depth of the loops.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Qadeer Ahmed Khan
Software Developer
Pakistan Pakistan
No Biography provided

Comments and Discussions

 
GeneralMy vote of 5 Pinmembershanmugamvasu20-Oct-12 1:07 

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