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How to set the Location of the ComboBox in C#?

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In Windows Forms, ComboBox provides two different features in a single control, it means ComboBox works as both TextBox and ListBox. In ComboBox, only one item is displayed at a time and the rest of the items are present in the drop-down menu. You are allowed to set the location of your ComboBox in the windows from by using Location Property. Or in other words, Location property is used to set the coordinates of the upper-left corner of the ComboBox control relative to the upper-left corner of its form. You can set this property using two different methods:

1. Design-Time: It is the easiest method to set the location of the ComboBox control using the following steps:

  • Step 1: Create a windows form as shown in the below image:
    Visual Studio -> File -> New -> Project -> WindowsFormApp
  • Step 2: Drag the ComboBox control from the ToolBox and drop it on the windows form. You are allowed to place a ComboBox control anywhere on the windows form according to your need.
  • Step 3: After drag and drop you will go to the properties of the ComboBox control to set the location of the ComboBox.

    Output:

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

public System.Drawing.Point Location { get; set; }

Here, the Point indicates the upper-left corner of the ComboBox control relative to the upper-left corner of its form. Following steps are used to set the location of the ComboBox:

  • Step 1: Create a combo box using the ComboBox() constructor is provided by the ComboBox class.
    // Creating ComboBox using ComboBox class
    ComboBox mybox = new ComboBox();
    
  • Step 2: After creating ComboBox, set the location of the ComboBox provided by the ComboBox class.
    // Set the location of the combobox
    mybox.Location = new Point(327, 77);
    
  • Step 3: And last add this combobox control to form using Add() method.
    // Add this ComboBox to form
    this.Controls.Add(mybox);
    

    Example:




    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 WindowsFormsApp11 {
      
    public partial class Form1 : Form {
      
        public Form1()
        {
            InitializeComponent();
        }
      
        private void Form1_Load(object sender, EventArgs e)
        {
            // Creating and setting the properties of label
            Label l = new Label();
            l.Location = new Point(222, 80);
            l.Size = new Size(99, 18);
            l.Text = "Select Your id";
      
            // Adding this label to the form
            this.Controls.Add(l);
      
            // Creating and setting the properties of comboBox
            ComboBox mybox = new ComboBox();
            mybox.Location = new Point(327, 77);
            mybox.Size = new Size(216, 26);
            mybox.Name = "My_Cobo_Box";
            mybox.Items.Add(230);
            mybox.Items.Add(231);
            mybox.Items.Add(232);
            mybox.Items.Add(233);
            mybox.Items.Add(234);
      
            // Adding this ComboBox to the form
            this.Controls.Add(mybox);
        }
    }
    }

    
    

    Output:



Last Updated : 27 Jun, 2019
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