C#•11mo ago

every generated textBox has a diferent value but all arrey values is 0 .

Why?

13 Replies

$details

MODiX•11mo ago

When you ask a question, make sure you include as much detail as possible. Such as code, the issue you are facing, and what you expect the result to be. Upload code here https://paste.mod.gg/ (see $code for more information on how to paste your code)

FloW•11mo ago

FloW•11mo ago

I know , just forget to make screenshots 😅

SinFluxx•11mo ago

I mean, they're not really that helpful either

FloW•11mo ago

can I paste code ?

SinFluxx•11mo ago

$code

MODiX•11mo ago

To post C# code type the following: ```cs // code here ``` Get an example by typing $codegif in chat For longer snippets, use: https://paste.mod.gg/

FloW•11mo ago

thank you!

int[] arr = new int[300];
        private void button1_Click(object sender, EventArgs e)
        {
            Random randomGenerator = new Random();
            for (int i = 0; i<15; i++)
            {
                for (int j = 0; j<20; j++)
                {
                    int TextNum = randomGenerator.Next((int)numericUpDown1.Value, (int)numericUpDown2.Value);
                    arr.Append(TextNum);
                    TextBox textBox = new TextBox()
                    {
                        Text = TextNum.ToString(),
                        Location = new Point(40 + 105 * i, 40 + 30 * j),
                        Width = 100,
                        Height = 25,
                    };

                    Controls.Add(textBox);
                }
            }
            
            for (int i=0; i<arr.Length; i++)
            {
                Console.WriteLine(arr[i]);
            }
        }

int[] arr = new int[300];
        private void button1_Click(object sender, EventArgs e)
        {
            Random randomGenerator = new Random();
            for (int i = 0; i<15; i++)
            {
                for (int j = 0; j<20; j++)
                {
                    int TextNum = randomGenerator.Next((int)numericUpDown1.Value, (int)numericUpDown2.Value);
                    arr.Append(TextNum);
                    TextBox textBox = new TextBox()
                    {
                        Text = TextNum.ToString(),
                        Location = new Point(40 + 105 * i, 40 + 30 * j),
                        Width = 100,
                        Height = 25,
                    };

                    Controls.Add(textBox);
                }
            }
            
            for (int i=0; i<arr.Length; i++)
            {
                Console.WriteLine(arr[i]);
            }
        }

😊

SinFluxx•11mo ago

arr.Append(TextNum); Append will create a new sequence, it won't add anything into your existing arr variable Even if you updated arr to be the new sequence that Append gives you, because you've declared arr with a size of 300, you'll end up with an array of 300 0s and then the new TextNum value on the end

FloW•11mo ago

so arr[301] will be TextNum right?

SinFluxx•11mo ago

that's right - if you make sure to assign the newly created sequence to your arr variable What would probably make more sense is trying to set the value at the index of the array you're currently at? arr[0] = TextNum, arr[1] = TextNum, etc?

FloW•11mo ago

hm i tried to do it using for I`ll try again , thank you one more question I need to change int[300] to int[0] or no?

for (int i = 0; i<15; i++)
            {
                for (int j = 0; j<20; j++)
                {
                    int TextNum = randomGenerator.Next((int)numericUpDown1.Value, (int)numericUpDown2.Value);
                    arr[i * j] = TextNum;
                    TextBox textBox = new TextBox()
                    {
                        Text = TextNum.ToString(),
                        Location = new Point(40 + 105 * i, 40 + 30 * j),
                        Width = 100,
                        Height = 25,
                    };

                    Controls.Add(textBox);
                }
            }

for (int i = 0; i<15; i++)
            {
                for (int j = 0; j<20; j++)
                {
                    int TextNum = randomGenerator.Next((int)numericUpDown1.Value, (int)numericUpDown2.Value);
                    arr[i * j] = TextNum;
                    TextBox textBox = new TextBox()
                    {
                        Text = TextNum.ToString(),
                        Location = new Point(40 + 105 * i, 40 + 30 * j),
                        Width = 100,
                        Height = 25,
                    };

                    Controls.Add(textBox);
                }
            }

what do you think? update:

int[,] arr = new int[15, 20];
        private void button1_Click(object sender, EventArgs e)
        {
            Random randomGenerator = new Random();
            for (int i = 0; i<15; i++)
            {
                for (int j = 0; j<20; j++)
                {
                    int TextNum = randomGenerator.Next((int)numericUpDown1.Value, (int)numericUpDown2.Value);
                    arr[i, j] = TextNum;
                    TextBox textBox = new TextBox()
                    {
                        Text = TextNum.ToString(),
                        Location = new Point(40 + 105 * i, 40 + 30 * j),
                        Width = 100,
                        Height = 25,
                    };

                    Controls.Add(textBox);
                }
            }
            
            for (int i=0; i<15; i++)
            {
                for (int j = 0; j < 20; j++)
                {
                    Console.WriteLine(arr[i, j]);
                }
            }
        }

int[,] arr = new int[15, 20];
        private void button1_Click(object sender, EventArgs e)
        {
            Random randomGenerator = new Random();
            for (int i = 0; i<15; i++)
            {
                for (int j = 0; j<20; j++)
                {
                    int TextNum = randomGenerator.Next((int)numericUpDown1.Value, (int)numericUpDown2.Value);
                    arr[i, j] = TextNum;
                    TextBox textBox = new TextBox()
                    {
                        Text = TextNum.ToString(),
                        Location = new Point(40 + 105 * i, 40 + 30 * j),
                        Width = 100,
                        Height = 25,
                    };

                    Controls.Add(textBox);
                }
            }
            
            for (int i=0; i<15; i++)
            {
                for (int j = 0; j < 20; j++)
                {
                    Console.WriteLine(arr[i, j]);
                }
            }
        }

its working Thank you very much!

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every generated textBox has a diferent value but all arrey values is 0 .