CODEWITHSUNDEEP
c#.netwinforms
Ryder
Ryder

Reputation: 361

How to set default values for a user control?

I got a user control called PicturePanel. On the mouse events (MouseDown, MouseMove, MouseUp), I have the following:

protected override void OnMouseDown(MouseEventArgs e)
{
    if (marquee == true && e.Button == MouseButtons.Left && BackgroundImage != null)
    {
          //Code to create rectangular marquee
    }
    else
    {

    }
}

Class level variable private bool marquee = false by default. And a public one.

private bool marquee = false;
public bool Marquee
{
    get { return marquee; }
    set { marquee = value; }
}

I even tried assigning the false at initialization:

public PicturePanel()
{
    InitializeComponent();
    marquee = false;
}

But marquee is always true by default. If I want to turn off marquee, I have to set it through the public variable picturePanel1.Marquee = false in the form. How can I make marquee false by default within the user control?

Upvotes: 3

Views: 2398

Answers (3)

Scott Rippey
Scott Rippey

Reputation: 15810

I'm not sure if this is what you're talking about, but if you're referring to the default value that you see in the designer, then you just need to add the following attribute to your property:

[DefaultValue(false)]
public bool Marquee
...

Upvotes: 2

Scott Rippey
Scott Rippey

Reputation: 15810

Your issue might be that when you use the designer to "draw" the control on the form, it might be registering the MouseDown event, setting the Marquee to true. You can prevent this by checking this.DesignMode in your event handler.

Example: 

if (this.DesignMode) return;

Upvotes: 0

alexn
alexn

Reputation: 59012

Well, booleans are always false by default. You don't happen to have a local variable called marquee or something?

Just set a breakpoint on private bool marquee = false; and step through your code and you'll find it pretty quick.

Upvotes: 0

Related Questions