Tiles to one bitmap, screws up x_X

[I don't have a username]

So I'm trying to combine tiles into a single bitmap.

This is how I'm doing it:

 Bitmap bit = new Bitmap(mapWidth, mapHeight);

    using (System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bit))
    {
    for (int y = 0; y < mapHeight; y += 32)
    {
    for (int x = 0; x < mapWidth; x += 32)
    {
    using (Bitmap tile = new Bitmap(location + "\\" + y + "_" + x + ".png"))
    {
    graphics.DrawImage(tile, new Point(x, y));
    tile.Dispose();
    }
    }
    }

    graphics.Dispose();
    }

Bitmap size is 128x128.

File name structure is like this: y_x.png

Each tile looks like this:


The result: (Don't mind the black area.)


What it actually should look like:


What could cause it to screw up like this? X_X

This is really bugging me XD.

#Edit got it fixed, this can be closed.

[InfamousNoone]

The purpose of using a using statement is to invoke Dispose automatically btw....

[Santa]

Originally Posted by InfamousNoone

The purpose of using a using statement is to invoke Dispose automatically btw....

Is that the only purpose it servers?

[I don't have a username]

Originally Posted by InfamousNoone

The purpose of using a using statement is to invoke Dispose automatically btw....

Yeah I know, but it's just a bad habit xD

Originally Posted by StarBucks

Is that the only purpose it servers?

Unless you're using it to define namespaces.