How can I manually change the color of background and text ?

Joe Wilson

I mean I want to make a windows form in c# like this:

this is my form

color: color number (0 - 255) (for example if all of the color number get 0 except green the text will be green and the contrast color (red) will be background color)

green 255

blue 0 Text

red 0

please guide me to implement it in windows form.

9 Replies

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

Priyaranjan K S11y ago
Cool . If any of the replies were useful you may mark it as Answer .
0
Joe Wilson11y ago
Hi,
Thank you very much for your answer, It works very well, I am in your debt.
0
Joe Wilson11y ago
Thank you for your answer,but I mean I have label in center of form and it is written Text as I mentioned and I want to ask user to fill the text boxes in front of red and green and blue with numbers and the color was created by all three text box be the Text and the contrast color of Text be the background color.

windows form : note: the parantisize are text box and underlined are label

blue ( 0 )

green ( 0 ) Text (background of form is white)

red ( 0 )

so please now guide me comprehensively to solve it . Thank you
0
Priyaranjan K S11y ago
The solution is already attached . Check the beginning of my previous reply . You may download it .

Thanks,
Priyan

If you found this useful Please mark this as Answer
+1
Joe Wilson11y ago
Thank you very much for answer, please send me the solution to my email address because it is too complex to figure out here ,
My email address: [email protected]
0
Priyaranjan K S11y ago
Here you go . I have attached the solution file as well . The forms app basically contains 3 text boxes namely Red,Blue & Green . On their text changed event the logic is written . You can take care of the validations .

private void Red_TextChanged(object sender, EventArgs e)
{
int red, green, blue = 0;
if (Red.Text == string.Empty) red = 0; else red = Int32.Parse(Red.Text);
if (Green.Text == string.Empty) green = 0; else green = Int32.Parse(Green.Text);
if (Blue.Text == string.Empty) blue = 0; else blue = Int32.Parse(Blue.Text);
System.Drawing.Color fontColor= Color.FromArgb(red, green, blue);
Message.ForeColor = Color.FromArgb(red, green, blue);
System.Drawing.Color bgColor = Color.FromArgb(fontColor.ToArgb() ^ 0xffffff);

this.BackColor= bgColor;
}
private void Blue_TextChanged(object sender, EventArgs e)
{
int red, green, blue = 0;
if (Red.Text == string.Empty) red = 0; else red = Int32.Parse(Red.Text);
if (Green.Text == string.Empty) green = 0; else green = Int32.Parse(Green.Text);
if (Blue.Text == string.Empty) blue = 0; else blue = Int32.Parse(Blue.Text);
System.Drawing.Color fontColor = Color.FromArgb(red, green, blue);
Message.ForeColor = Color.FromArgb(red, green, blue);
System.Drawing.Color bgColor = Color.FromArgb(fontColor.ToArgb() ^ 0xffffff);
this.BackColor = bgColor;
}
private void Green_TextChanged(object sender, EventArgs e)
{
int red, green, blue = 0;
if (Red.Text == string.Empty) red = 0; else red = Int32.Parse(Red.Text);
if (Green.Text == string.Empty) green = 0; else green = Int32.Parse(Green.Text);
if (Blue.Text == string.Empty) blue = 0; else blue = Int32.Parse(Blue.Text);
System.Drawing.Color fontColor = Color.FromArgb(red, green, blue);
Message.ForeColor = Color.FromArgb(red, green, blue);
System.Drawing.Color bgColor = Color.FromArgb(fontColor.ToArgb() ^ 0xffffff);
this.BackColor = bgColor;
}

If you are unable to see any solution file you can message me your mail id . I can send it across to you . However you should be able to figure out the solution with the above code .

Thanks,
Priyan

If you found this useful Please mark this as Answer
+1
Joe Wilson11y ago
Hi priyaranjan ,
I explained what I want to design in windows form , but the solution you explained didn't solved it, please look the question again and guide me.
0
Joe Wilson11y ago
thank you for your answer, but I mean the number that I mentioned are in text box that will be filled by user and according to those text box the text and back ground will changed, so please guide me how can I do that, Note: the background color must be changed according to text box color numbers and the text must be contrast color of back ground color.
0
Priyaranjan K S11y ago
Hi Joe ,

Say green,blue and red are 3 text boxes with respective names and there is a 4th text box named 'randomText' which contains some particular text whose color should change based on other 3 text boxes .

Code logic would go like this

If(green.Text != "0" && blue.Text=="0" && red.Text=="0")
{
randomText.ForeColor=Color.Green; //make sure you have System.Drawing assembly reference
Form1.BackColor=Color.Red; // Form1 is your form's name
}

Thanks,
Priyan

If you found this useful Please mark this as Answer
+1