Change label forecolour if value less than label 1

mike Delvotti

I'm trying to change the fore colour of my labels if they are less than the value of another label by -2

Example, on my form I have 11 labels then I have another label lets say called "total" that will contain a value for instance 100.

I'm trying to achieve a formula that will check the values in labels 1 - 11 and if the value is less than the value in 'Total' by 2 change the label colour to red.

So if label named 'total' was 100 and labels 2 & 4 had a value of 98 or less the fore colour of labels 2 & 4 would change red.

Is this achievable? I would like to fire this in the form load event really.

4 Replies

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Vulpes12y ago
Accepted answer
The following code assumes all the labels are placed directly on the form and not in some other container such as a panel or groupbox:

private void Form1_Load(object sender, EventArgs e)
{
// get value of 'total' label
int t = int.Parse(total.Text);

// iterate through all labels and if value <= t - 2 change forecolor to red
foreach(Control c in this.Controls)
{
if (c is Label)
{
int value;
bool isValid = int.TryParse(c.Text, out value);
if (isValid && value <= t- 2) c.ForeColor = Color.Red;
}
}
}
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mike Delvotti12y ago
Thank you Vulpes - that's great.
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Vulpes12y ago
Sure, just change t - 2 in the above code to 0.98 * t.
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mike Delvotti12y ago
That's awesome Vulpes, :-)

Just a cheeky question, is it possible to do exactly the same but by using -2% of total label?

( I have another form that I wish to colour the label on a percentage)
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