CODEWITHSUNDEEP
c#
Asım Gündüz
Asım Gündüz

Reputation: 1297

calling object members in c# foreach loop

I have lot of tab pages in my program and I want to add or remove these pages. I'm using the following statement to do it.

if(this.myControlForm.TabPages.Contains(tabPage1))
{
    this.myControlForm.TabPages.Remove(tabPage1));
}
if(this.myControlForm.TabPages.Contains(tabPage2))
{
    this.myControlForm.TabPages.Remove(tabPage2));
}
[...] //similar code for other tabPages

but it makes too much code when I have a lot of tabpages to add or remove so I want to add them in an array and make a foreach loop but I got an error

my code is :

object[] listToRemove = {tabPage1, tabPage2,tabPage3, ... tabPage20};

foreach ( object itr in listToRemove)
{
    if(this.myControlForm.TabPages.Contains(itr))
    {
        this.myControlForm.TabPages.Remove(itr));
    }
}

Why is this happening, can anyone please help?

Upvotes: 0

Views: 64

Answers (1)

Andrey Korneyev
Andrey Korneyev

Reputation: 26846

Change your listToRemove to be explicitly typed, i.e. from array of objects to the array of TabPage.

Same story with itr variable in loop.

Contains and Remove methods expects argument to be of type TabPage, not object - that's why you're getting errors.

TabPage[] listToRemove = {tabPage1, tabPage2,tabPage3, ... tabPage20};

foreach (TabPage itr in listToRemove)
{
  if(this.myControlForm.TabPages.Contains(itr))
      this.myControlForm.TabPages.Remove(itr);
}

Upvotes: 4

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