How to use AcceptsReturn Property of TextBox in C#?

In TextBox, you are allowed to set a value which shows whether pressing the ENTER in a multiline TextBox control creates a new line of text in the TextBox control or activates the default button for the form by using AcceptsReturn property.
If the value of this property is set to be true, then the ENTER key creates a new line of text in a multiline TextBox control and if the value of this property is set to false, then the ENTER key activates the default button for the form. The default value of this property is false. In Windows form, you can set this property in two different ways:

1. Design-Time: It is the simplest way to set the AcceptsReturn property of the TextBox as shown in the following steps:

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

    Output:

Run-Time: It is a little bit trickier than the previous method. In this method, you can set the AcceptsReturn property of the TextBox programmatically with the help of given syntax:

public bool AcceptsReturn { get; set; }

Here, the value of this property of System.Boolean type. Following steps are used to set the AcceptsReturn property of the TextBox:

  • Step 1 : Create a textbox using the TextBox() constructor provided by the TextBox class.
    // Creating textbox
    TextBox Mytextbox = new TextBox();
    
  • Step 2 : After creating TextBox, set the AcceptsReturn property of the TextBox provided by the TextBox class.
    // Set AcceptsReturn property
    Mytextbox.AcceptsReturn = false;
    
  • Step 3 : And last add this textbox control to from using Add() method.
    // Add this textbox to form
    this.Controls.Add(Mytextbox);
    

    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 my {
      
    public partial class Form1 : Form {
      
        public Form1()
        {
            InitializeComponent();
        }
      
        private void Form1_Load(object sender, EventArgs e)
        {
            // Creating and setting the properties of Lable1
            Label Mylablel = new Label();
            Mylablel.Location = new Point(96, 54);
            Mylablel.Text = "Name";
            Mylablel.AutoSize = true;
            Mylablel.BackColor = Color.LightGray;
      
            // Add this label to form
            this.Controls.Add(Mylablel);
      
            // Creating and setting the properties of TextBox1
            TextBox Mytextbox = new TextBox();
            Mytextbox.Location = new Point(187, 51);
            Mytextbox.BackColor = Color.LightGray;
            Mytextbox.ForeColor = Color.DarkOliveGreen;
            Mytextbox.AutoSize = true;
            Mytextbox.AcceptsReturn = false;
      
            // Add this textbox to form
            this.Controls.Add(Mytextbox);
        }
    }
    }

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    Output:



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