Using a for loop in server side code to cycle through labels by dynamically creating the names there

Question

I was working on a website that had a list of asp labels. I used javscript code to get the name of each box so I could modify the text that was inside them. I was using a for loop similiar to this, and I became curious if there was a way to call all the labels similiarly so that you can put them in a loop and to cycle through them all. Something like this in the server side code:

asp code:

<asp:Label runat="server" ID="lblWorld1" Text="" />
<asp:Label runat="server" ID="lblWorld2" Text="" />
<asp:Label runat="server" ID="lblWorld3" Text="" />
<asp:Label runat="server" ID="lblWorld4" Text="" />
<asp:Label runat="server" ID="lblWorld5" Text="" />

c# code

for(int c = 1; c <= 5 ; c++)

{

  var label = "lblWorld" + c.toString();

  label.Text = "Hello World!";

}

However, in the server side code, this doesn't work. Is there a way to make a for loop and with a dynamic system getting the name of the labels.

Servy · Accepted Answer · 2013-02-05 16:29:49Z

5

Put all of the labels into some container, such as a Panel or PlaceHolder. Give that container an ID.
In your code get the container by ID.
Iterate the Controls collection of that container to get each of the labels. Use OfType<Label> if it's possible for there to be other types of controls besides labels.

edited Feb 5, 2013 at 16:29

answered Feb 4, 2013 at 21:33

Servy

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Comments

MTAdmin · Accepted Answer · 2013-02-04 21:50:14Z

0

You can follow through with your current logic with:

for(int c = 1; c <= 5 ; c++)
{
var label = "lblWorld" + c.toString();
Label tempLabel = new Label;
tempLabel.ID = label.ToString();
tempLabel.Text = "Hello World!";   
}

You'll still need to deal with assigning values to individual labels though, so it's probably more scalable to handle the labels as a container.

edited Feb 4, 2013 at 21:50

answered Feb 4, 2013 at 21:37

MTAdmin

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