How to visible label with other name in c#

Question

I have labels and their name like label1,label2,... etc. and I know how to visible label like label1.visible = true But what I want to do is make some of them visible with other name like the code below

            for (i = 0; i < ceksayisi*2; i++)
            {
                num = i;
                labelname = "label" + num;
                labelname.visible = true;
            }

The code gives me 'string' does not contain a definition for 'visible' and no extension method 'visible' accepting a first argument of type 'string' could be found (are you missing a using directive or an assembly reference?)

If ASP.NET, `(Label)Page.FindControl("label" + num)` should work — Hary, Nov 01 '18 at 11:37
It is important to state the GUI framework you are using: ASP.NET, Windows Forms, WPF, etc. — NoChance, Nov 01 '18 at 11:37
If you are using Windows Forms, check this:https://stackoverflow.com/questions/12808943/how-can-i-get-all-labels-on-a-form-and-set-the-text-property-of-those-with-a-par/12809043 — NoChance, Nov 01 '18 at 11:38

Alessio Raddi · Accepted Answer · 2018-11-01T11:58:14.180

1

Since that is a case-sensitive programming language, it won't work with labelname.visible = true; but you have to change that piece of code with: labelname.Visible = true;

Edit:

Might have misunderstood, if you're trying to Show/Hide a label that you don't know the name dynamically, you may try doing something like this:

for(int i = 0; i < ceksayisi*2; i++)
{
    num = i;
    Label labelname = (Label) Controls.Find("label" + num, true).FirstOrDefault();
    labelname.Visible = true;
}

Hope this helps.

edited Nov 01 '18 at 11:58

answered Nov 01 '18 at 11:48

Alessio Raddi

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Might I have the pleasure to know why my answer got downvoted? I don't think I can improve my skills if you won't tell me what I wrote wrong. – Alessio Raddi Nov 01 '18 at 12:52
it fix my problem – Darth Sucuk Nov 01 '18 at 13:19

score 0 · Answer 2 · answered Nov 01 '18 at 11:33

0

You are doing a classical mistake here. The Droid you are looking for are arrays and other collections. You can not build variable names like that outside of some really weakly typed langauges.

No .NET Langauge is weakly typed. And that is by design.

answered Nov 01 '18 at 11:33

Christopher

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score 0 · Answer 3 · answered Nov 01 '18 at 11:42

To achieve this You should use Dictionary here.

Dictionary<string, Label> keyValuePairs = new Dictionary<string, Label>();

And add your label in the dictionary with according keys

keyValuePairs.Add("label_" + num, label1);

you can access your labels like

Label lbl = keyValuePairs["label" + num];

then you can play with this lbl

lbl.Visible = false;

How to visible label with other name in c#

3 Answers3