TabControl.TabPageCollection.IsReadOnly Property

Definition

Gets a value indicating whether the collection is read-only.

public bool IsReadOnly { get; }

Property Value

This property always returns false.

Implements

Examples

The following code example creates a TabControl with two TabPage. This example gets the tabControl1 controls collection and determines if it is read-only using the IsReadOnly property.

using System.Drawing;
using System.Windows.Forms;

public class Form1 : Form
{
    public Form1()
    {
        TabControl tabControl1 = new TabControl();
        TabPage tabPage1 = new TabPage();
        TabPage tabPage2 = new TabPage();
        Label label1 = new Label();

        // Determines if the tabControl1 controls collection is read-only.
        if (tabControl1.TabPages.IsReadOnly)
            label1.Text = "The tabControl1 controls collection is read-only.";
        else
            label1.Text = "The tabControl1 controls collection is not read-only.";

        tabControl1.TabPages.AddRange(new TabPage[] {tabPage1, tabPage2});
        tabControl1.Location = new Point(25, 75);
        tabControl1.Size = new Size(250, 200);

        label1.Location = new Point(25, 25);
        label1.Size = new Size(250, 25);

        this.ClientSize = new Size(300, 300);
        this.Controls.AddRange(new Control[] {tabControl1, label1});
    }

    static void Main() 
    {
        Application.Run(new Form1());
    }
}

Applies to

产品 版本
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9