CODEWITHSUNDEEP
c#visual-studio-2013
Sorashi
Sorashi

Reputation: 941

Trying to add user control to form crashes Visual Studio

I created a UserControl called Switch. I built my project and this UC successfully shown in my toolbox. So I tried to add it to my frmMain by dragging it to the form. But at this moment, Visual Studio always shows an error message:

A new guard page for the stack cannot be created.

After clicking OK, devenv.exe crashes.

I have to mention, that I have another user control in the same namespace and folder as Switch. This UC works fine.

This is the code of my Switch user control: 

public partial class Switch : UserControl
{
    private Rectangle switchRectangle;
    private int xOn = 0; // switchRectangle x position, when switch is on
    private int xOff = 0; // switchRectangle x position, when switch is off

    private Color SwitchColor = Color.Black;
    private Color OuterRectangleColor = Color.DarkGray;

    private Color InnerRectangleColor
    {
        get { return this.On ? Color.DodgerBlue : InnerRectangleColor; }
    }
    public bool On { get; set; }
    public Switch()
    {
        InitializeComponent();
        ReloadSwitchRectangle();
        xOn = this.Width - switchRectangle.Width;
    }

    private void Switch_Paint(object sender, PaintEventArgs e)
    {
        e.Graphics.Clear(this.BackColor);
        // Create inner rectangle, on every side by 2px smaller than ClientRectangle
        const int amountToDecrease = 2;
        Rectangle innerRectangle = new Rectangle(this.ClientRectangle.X + amountToDecrease, this.ClientRectangle.Y + amountToDecrease,
            this.ClientRectangle.Width - amountToDecrease * 2, this.ClientRectangle.Height - amountToDecrease * 2);
        ReloadSwitchRectangle();

        e.Graphics.DrawRectangle(new Pen(OuterRectangleColor), this.ClientRectangle); // Draw outer rectangle
        e.Graphics.FillRectangle(new SolidBrush(InnerRectangleColor), innerRectangle); // Fill inner rectangle
        e.Graphics.FillRectangle(new SolidBrush(SwitchColor), switchRectangle);
    }

    private void ReloadSwitchRectangle()
    {
        int x = this.On ? xOn : xOff;
        switchRectangle = new Rectangle(x, 0, this.Width / 5, this.Height);
    }
}

Upvotes: 0

Views: 770

Answers (2)

Sorashi
Sorashi

Reputation: 941

Thanks to Sriram Sakthivel, I solved my problem like this: 

private Color InnerRectangleColor
{
    get { return this.On ? Color.DodgerBlue : OuterRectangleColor; }
}

Upvotes: 0

Sriram Sakthivel
Sriram Sakthivel

Reputation: 73502

This is the problem:

private Color InnerRectangleColor
{
    get { return this.On ? Color.DodgerBlue : InnerRectangleColor; }
}

You have infinite recursion here when this.On is set to false.

Upvotes: 2

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