How to loop through controls(different).

Liam Stevens

Hi, I need to loop through a bunch of picture boxes that I have, all with names such as:

PictureBox00, PictureBox01, PictureBox02 etc.

I need to loop through these and adjust their values by what the current value in the loop is, I basically want to do this to it:

C# Syntax (Toggle Plain Text)

for (int i = 0; i < 3; i++)
{
PictureBox(i).enabled = false;
}

I need to access them like an array, I will not know what picturebox I would be dealing with at that time, only way I can see to do this is by using the loop, cheers.

EDIT: I think this was pretty easy to do in VB.NET via DirectCast, not sure if that would be used here(the similar version).

8 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
You can do something like this (I'm assuming that the pictureboxes have all been placed directly on the form):

for (int i = 0; i < 3; i++)
{
PictureBox pic = (PictureBox)this.Controls["PictureBox0" + i.ToString];
pic.Enabled = false;
}
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Vulpes15y ago
Incidentally, Liam, you could have used the same approach if your pictureboxes (or any other control) had all been within some container, such as a panel or groupbox, rather than placed directly on the form.

It would just have been a matter of replacing 'this.Controls' with 'this.panel1.Controls' (or whatever) as every container control has a Controls collection.
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Liam Stevens15y ago
haha yes I guessed.

This:

["tile_" + j.ToString("00")]

Any way I can subtract 1 from j at the same time, such as:

["tile_" + j - 1.ToString("00")]

Cheers.
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Vulpes15y ago
Oops, a touch of VB# there from yours truly ;)
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Liam Stevens15y ago
Cheers Vulples, will try it out in my application and see how it goes, you forgot the () on the .tostring method.

I changed it slightly from:

PictureBox pic = (PictureBox)this.Controls["PictureBox0" + i.ToString];

To this:

PictureBox pic = (PictureBox)this.Controls["PictureBox" + i.ToString("00")];

This way it will count up correctly and will be fine when past 10, cheers will try it out now.
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Jaganathan Bantheswaran15y ago
then wait for some other reply.
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Liam Stevens15y ago
Don't think that's a solution to my situation, is there an alternative to the DirectCast method in c#? I don't know much about the method but it works in vb.net

Don't think I can put them in a groupbox, ty for reply however.
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Jaganathan Bantheswaran15y ago
Hi,

Put all picture in GrouopBox or canvas or something like that and access that like

PictureBox pic = canvas.children[0] as PictureBox;

PictureBox pic = groupBox1.Controls[0] as PictureBox;
0