CODEWITHSUNDEEP
c#winforms
stighy
stighy

Reputation: 7170

How to point to control?

i've 6 label controls in a form: label1, label2...label6. How to 'refer' to the control in a loop like this: 

for (i=1;i<=6;i++) {
   label[i].text = ...;
}

Thank you

Upvotes: 0

Views: 94

Answers (4)

Grant Thomas
Grant Thomas

Reputation: 45083

Let's assume this is WinForms and that your "labels" are controls - the Form has a Controls property, which is a collection of controls associated with that container, so, we ought to be able to use Linq to query this, get the controls of the type we want, then iterate them, as such:

using System.Linq;

var labels = from control in Controls where control is Label select control;

for (i = 1; i <= controls.Count; i++)
{
   labels[i].text = i.ToString();
}

A little rough, but you aren't very specific - it should be a decent starting point if nothing else.

EDIT:

OK, I thought I'd take the time to look into it, and Form.Controls doesn't like being used in Linq (in that straightforward way, at least), so as an alternative, this should help:

private List<Label> GetLabels()
{
    var result = new List<Label>();
    foreach (var control in Controls)
    {
        if (control is Label)
        {
            result.Add(control as Label);
        }
    }
    return result;
}

The above method could even be factored in a genericised way rather simply; but then you can proceed:

var labels = GetLabels();
for (int i = 0; i <= labels.Count; i++)
{
    labels[i].Text = i.ToString();
}

Upvotes: 1

Steve Wellens
Steve Wellens

Reputation: 20620

Here's another way:

for (int n = 1; n < 4; n++)
{
    Control[] Temp = Controls.Find("Label" + n, false);
    Temp[0].Text = n.ToString();
}

Upvotes: 2

Siva Charan
Siva Charan

Reputation: 18064

You can implement something like this:-

    int y = 0;
    int index = 0;

    Label[] labels = new Label[6];

    foreach (Student std in StudentList)
    {
            labels[index] = new Label();

            labels[index].Text = std.Name;

            labels[index].ForeColor = Color.Red;

            labels[index].Location = new Point(0, y);

            labels[index].Size = new Size(50, 12);

            y = y + 10;
            ++index;
    }

    // Add the Label control to the form.
    mPanel.Controls.AddRange(labels);

Upvotes: 1

KV Prajapati
KV Prajapati

Reputation: 94645

Try,

Label []labels={Label1,Label2,Label3};

Upvotes: 2

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