CODEWITHSUNDEEP
c#winformsevents
user1797147
user1797147

Reputation: 927

custom textbox event not fired

I have a custom TextBox for border property purposes, but the OnKeyDown event is not fired like original textbox does.

public class BorderedTextBox : UserControl
{
    System.Windows.Forms.TextBox textBox;

    public BorderedTextBox()
    {
        textBox = new TextBox()
        {
            BorderStyle = BorderStyle.FixedSingle,
            Location = new Point(-1, -1),
            Anchor = AnchorStyles.Top | AnchorStyles.Bottom |
                     AnchorStyles.Left | AnchorStyles.Right
        };

        Control container = new ContainerControl()
        {
            Dock = DockStyle.Fill,
            Padding = new Padding(-1)
        };
        container.Controls.Add(textBox);
        this.Controls.Add(container);


        Padding = new Padding(1);
        Size = textBox.Size;
    }


    public override string Text
    {
        get { return textBox.Text; }
        set { textBox.Text = value; }
    }

    public CharacterCasing CharacterCasing
    {
        get { return textBox.CharacterCasing; }
        set { textBox.CharacterCasing = value; }
    }

    protected override void  OnKeyDown(KeyEventArgs e)
    {
        base.OnKeyDown(e);
    }

    protected override void SetBoundsCore(int x, int y,
        int width, int height, BoundsSpecified specified)
    {
        base.SetBoundsCore(x, y, width, textBox.PreferredHeight, specified);
    }
}

Upvotes: 0

Views: 126

Answers (1)

Sriram Sakthivel
Sriram Sakthivel

Reputation: 73482

No, it will not be fired. Because the focus will be in TextBox. KeyDown event of textbox will be fired instead.

If you need to handle those events you have few options

  • Inherit the BorderedTextBox from TextBox rather than UserControl.
  • Subscribe to textBox.KeyDown event and handle it.

Upvotes: 2

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