winforms Basic controls NumericUpDown

Example

NumericUpDown is control that looks like TextBox. This control allow user to display/select number from a range. Up and Down arrows are updating the textbox value.

Control look like;

In Form_Load range can be set.

private void Form3_Load(object sender, EventArgs e)
    {
        numericUpDown1.Maximum = 10;
        numericUpDown1.Minimum = -10; 
    }

Output;

UpDownAlign will set the position of arrows;

 private void Form3_Load(object sender, EventArgs e)
        {
            numericUpDown1.UpDownAlign = LeftRightAlignment.Left;
            
        }

Output;

UpButton() Method increase the number of the control. (can be called from anywhere. I used a button to call it.)

private void button1_Click(object sender, EventArgs e)
        {
            numericUpDown1.UpButton();
        }

**Output

DownButton() Method decrease the number of the control. (can be called from anywhere. I used a button to call it again.)

 private void button2_Click(object sender, EventArgs e)
        {
            numericUpDown1.DownButton();
        }

Output;

Useful Events

---

ValueChanged;

That event will work when Up or Down arrow clicked.

private void numericUpDown1_ValueChanged(object sender, EventArgs e)
        {
            decimal result = numericUpDown1.Value; // it will get the current value
            if (result == numericUpDown1.Maximum) // if value equals Maximum value that we set in Form_Load.
            {
                label1.Text = result.ToString() + " MAX!"; // it will add "MAX" at the end of the label 
            }
            else if (result == numericUpDown1.Minimum) //  if value equals Minimum value that we set in Form_Load.
            {
                label1.Text = result.ToString() + " MIN!"; // it will add "MIN" at the end of the label 
            }
            else
            {
                label1.Text = result.ToString(); // If Not Max or Min, it will show only the number.
            }
        }

Output;