Hi, I am making a scrolling text over a picture box. However,I can't hide the label background to show out the picture box. Any idea?

You have to use the Graphics object to draw string in a picture box. You need to adjust the co-ordinates to suit your needs in following code:

private void pictureBox1_Paint(object sender, PaintEventArgs e)

{

DrawStringRectangleF(e);

}

//

//Sample code taken from MSDN help on Graphics.DrawString method

//

public void DrawStringRectangleF(PaintEventArgs e)

{

// Create string to draw.

String drawString = "Sample Text";

// Create font and brush.

Font drawFont = new Font("Arial", 16);

SolidBrush drawBrush = new SolidBrush(Color.Black);

// Create rectangle for drawing.

float x = 150.0F;

float y = 150.0F;

float width = 200.0F;

float height = 50.0F;

RectangleF drawRect = new RectangleF( x, y, width, height);

// Draw rectangle to screen.

Pen blackPen = new Pen(Color.Black);

e.Graphics.DrawRectangle(blackPen, x, y, width, height);

// Draw string to screen.

e.Graphics.DrawString(drawString, drawFont, drawBrush, drawRect);

}

Did you try setting the Label's BackColor property to Transparent? Also, trydrawing your textdirectly onto the PictureBox in its Paint event.

I type the codes like this but It showes nothing

Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
PictureBox1.Text = "DRAW TEXT HERE"
End Sub

The text property of the PictureBox is never displayed. You have to draw onto the graphics context using the Graphics object in the PaintEventArgs.

You have to use the Graphics object to draw string in a picture box. You need to adjust the co-ordinates to suit your needs in following code:

private void pictureBox1_Paint(object sender, PaintEventArgs e)

{

DrawStringRectangleF(e);

}

//

//Sample code taken from MSDN help on Graphics.DrawString method

//

public void DrawStringRectangleF(PaintEventArgs e)

{

// Create string to draw.

String drawString = "Sample Text";

// Create font and brush.

Font drawFont = new Font("Arial", 16);

SolidBrush drawBrush = new SolidBrush(Color.Black);

// Create rectangle for drawing.

float x = 150.0F;

float y = 150.0F;

float width = 200.0F;

float height = 50.0F;

RectangleF drawRect = new RectangleF( x, y, width, height);

// Draw rectangle to screen.

Pen blackPen = new Pen(Color.Black);

e.Graphics.DrawRectangle(blackPen, x, y, width, height);

// Draw string to screen.

e.Graphics.DrawString(drawString, drawFont, drawBrush, drawRect);

}

It works extremely nice. Thanks you guys so much!

Example how inherit from Label http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=59221&SiteID=1

This is another way to achieve it :

There are two different meaning of "transparency".

1. Control is transparent in relation to background of it's container. This means that you can place i.e. Label in i.e. Panel (or PictureBox - but this cannot be done in design-time) and set Label's BackColor to Transparent (or some color with alpha-channel). This does not actualy make Label's background transparent. This instructs label to observe background of its container and create Label's background from container's background in place where label is placed. You cannot make label to allow another label (or other control) to be seen through itself. It is because Label has its own completely solid background, but calculated from background of its container in order to look like transparent.
   
2. Control is really transparent (or semi-transparent). This mean that it does not paint its background (or it paints it with semi-transparent color). In this case you can place one control over another and controls can bee seen one througn another.
3. Another way how to make control to behave "transaprent" is to shape it to some strang shape - so, its regoin is only region i.e. of Label's Text.

1. This is how most of .NET Windows Forms controls behaves.
2. This can be done via deriving from Windows Forms controls and overriding its OnPainBackground. But before that you must instruct control to be transparent - to have custom-painted background - and this is OS-dependent. IMHO it can be successfully done on XP and Vista (and may be 2000) but not 95/98/ME or NT.
3. It is very time-consuming (needs computing power) and very tricky for Label. And can be successfully implemented IMHO only for static controls (Label, Button, PictureBox; not for i.e. TextBox).

I, now in 2008 :-), suggest using WPF.

This works for me, thanks a lot pal...
:)