How to set the size of the NumericUpDown in C#?

In windows forms, NumericUpDown control is used to provide Windows spin box or an up-down control which displays the numeric values. Or in other words, NumericUpDown control provides an interface which moves using up and down arrow and holds some pre-defined numeric value. In NumericUpDown control, you can set the value of height and width of the up-down control in pixels using the Size Property. You can set this property in two different ways:

1. Design-Time: It is the easiest way to set the size of the NumericUpDown as shown in the following steps:

  • Step 1: Create a windows form as shown in the below image:

    Visual Studio -> File -> New -> Project -> WindowsFormApp

  • Step 2: Next, drag and drop the NumericUpDown control from the toolbox on the form as shown in the below image:

  • Step 3: After drag and drop you will go to the properties of the NumericUpDown and set the size of the NumericUpDown as shown in the below image:

    Output:



2. Run-Time: It is a little bit trickier than the above method. In this method, you can set the height and width of the NumericUpDown control programmatically with the help of given syntax:

public System.Drawing.Size Size { get; set; }

Here, Size represents the height and width of the NumericUpDown control in pixels. The following steps show how to set the location of the NumericUpDown dynamically:

  • Step 1: Create a NumericUpDown using the NumericUpDown() constructor is provided by the NumericUpDown class.
    // Creating a NumericUpDown
    NumericUpDown n = new NumericUpDown();
    
  • Step 2: After creating NumericUpDown, set the Location property of the NumericUpDown provided by the NumericUpDown class.
    // Setting the size
    n.Size = new Size(126, 26);
    
  • Step 3: And last add this NumericUpDown control to the form using the following statement:
    // Adding NumericUpDown control on the form
    this.Controls.Add(n);
    

    Example:

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    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
      
    namespace WindowsFormsApp42 {
      
    public partial class Form1 : Form {
      
        public Form1()
        {
            InitializeComponent();
        }
      
        private void Form1_Load(object sender, EventArgs e)
        {
            // Creating and setting the 
            // properties of the labels
            Label l1 = new Label();
            l1.Location = new Point(348, 61);
            l1.Size = new Size(215, 20);
            l1.Text = "Form";
            l1.Font = new Font("Bodoni MT", 12);
            this.Controls.Add(l1);
      
            Label l2 = new Label();
            l2.Location = new Point(242, 136);
            l2.Size = new Size(103, 20);
            l2.Text = "Enter Age";
            l2.Font = new Font("Bodoni MT", 12);
            this.Controls.Add(l2);
      
            // Creating and setting the
            // properties of NumericUpDown
            NumericUpDown n = new NumericUpDown();
            n.Location = new Point(386, 130);
            n.Size = new Size(126, 26);
            n.Font = new Font("Bodoni MT", 12);
            n.Value = 18;
            n.Minimum = 18;
            n.Maximum = 30;
            n.BackColor = Color.LightGreen;
            n.ForeColor = Color.DarkGreen;
            n.Increment = 1;
            n.Name = "MySpinBox";
      
            // Adding this control
            // to the form
            this.Controls.Add(n);
        }
    }
    }

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    Output:




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