TextBox array color

Question

hie I have an array of text boxes which are populated by a random number generator (1,49). I would like to have the each Textbox to change color according to a range of numbers. for example if the number is less than 10, the Textbox should be blue. If number is between 10 and 20 textbox should be green, etc. Ant one with an idea? here is the code

Random RandomClass = new Random();
TextBox [] textboxes = new Control[]{TextBox1,TextBox2,TextBox3,TextBox4,TextBox5,TextBox6};

foreach(TextBox c in textboxes) 
    c.Text = RandomClass.Next(1,49).ToString();

Answer 1

Hello,

Do you want to change the color of the text or the color of the control? in this case what part of the control needs to change color? the border?

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Regards, Eyal Shilony

Answer 2

I need to change the color of the control...

and to change the control and not the border

thanks

Answer 3

You can use the BackColor property of the Textbox.

this.textBox1.BackColor = Color.Blue;

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- Brady My posts are kept as simple as possible for easier understanding. In many cases you can probably optimize or spruce up what I present. Have fun coding!

Answer 4

Here you go:

            Random rnd = new Random();
            Control[] textboxes = new Control[] { textBox1, textBox2, };
            Color[] colors = new Color[]{Color.Blue, Color.Red}; // Add as mush color as you need
            foreach (TextBox c in textboxes)
            {
                int randomNumber = rnd.Next(1, 49);
                c.Text = randomNumber.ToString();

                if ((randomNumber > 1) && (randomNumber < 25))
                    c.BackColor = colors[0];
                else
                    c.BackColor = colors[1];
                // Put mor if's to have more choices for colors
            }

 

Noam B.

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Answer 5

cool thanx that works fine.

I have six text boxes. Now  want to sort then so that they read from smallest generated number to the highest.

so I have a sort button

protected void sortBtn_Click(object sender, EventArgs e)
    {
        Array.Sort(textboxes);
    }

And this doesnt seem to work right either. I tried to include OrderBy and this gets rejected. how can i achieve this?

Answer 6

You won't be able to sort the textboxes, as the sort won't be based on the textbox text. Here is a modified version of Noam's example, where you can get the random numbers first, sort them, then put the numbers into the textboxes and set the colors.

Random rnd = new Random();
Control[] textboxes = new Control[] { textBox1, textBox2, };
Color[] colors = new Color[] { Color.Blue, Color.Red }; // Add as mush color as you need
int[] nums = new int[2];

for (int i = 0; i <= 1; i++) //change to loop for number of textboxes
{
    nums[i] = rnd.Next(1, 49);
}
Array.Sort(nums);

for (int i = 0; i <= textboxes.Length - 1; i++)
{
    textboxes[i].Text = nums[i].ToString();
    if ((nums[i] > 1) && (nums[i] < 25))
        textboxes[i].BackColor = colors[0];
    else
        textboxes[i].BackColor = colors[1];
    // Put mor if's to have more choices for colors
}

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- Brady My posts are kept as simple as possible for easier understanding. In many cases you can probably optimize or spruce up what I present. Have fun coding!

Answer 7

thanks Brady