CODEWITHSUNDEEP
c#.netwinforms
BramVD
BramVD

Reputation: 121

Using string for control objects

For my current project i made a MDIform with "menuStrip" and a couple of "ToolStripMenuItem". a couple of buttons and a devexpress "NavbarControl"

The intention is that the user logs in with a userID the application will get a datarow for a specific "Control" in this row theirs a bool, if its true the Item must be visible, otherwise the item must be invisible.

the Datarow also contains the name of the item.

so i uses:

this.Controls[item].Visible = true;

item = string(name of item)

if i use this to hide the menustrip itself, it works if i try it on the MenuStipItems, it gives a null reference exception.

how can i control the items INSIDE the MenuStip, only by name of the item???

Code:

    DataTable dt = GetData();
    foreach (DataRow row in dt.Rows)
    {
        string item = row["ItemNaam"].ToString();
        foreach (string rol in Rollen)
        {
            DataRow dr = GetDataByItemNaam(item);
            if (Convert.ToBoolean(dr[rol]) == true)
            {
                this.Controls[item].Visible = true; //Show Item
            }
        }
    }

Upvotes: 0

Views: 192

Answers (2)

BramVD
BramVD

Reputation: 121

I've solved the problem:

I created a foreach loop within a foreach loop where each loop looks for the name of the item, and then for the name of the item in the previous item. If the name matches the given name, it sets the visibility to true.

This is for 2 levels, I created an additional two extra foreach loops to go even deeper (inception) to 4 levels of items in the menu.

Perhaps its not the right/fastest way, but it works like it should.

Upvotes: 0

LarsTech
LarsTech

Reputation: 81620

The MenuStrip control has it's own collection. So to reference the menu strip items, reference the items from the menustrip parent:

if (this.menuStrip1.Items.ContainsKey(item))
  this.menuStrip1.Items[item].Visible = true;

Upvotes: 1

Related Questions