Need help to convert vb code to c#
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12-11-2019 - |
문제
I want to crop an image retrieved from the database. I found the following code on the net but it is in vb. I am doing asp.net c# based web page and i have no idea about vb
Can anyone take pain to give me the C# code to the following vb code?
help is highly appreciable and i would be very much thankful to you.
Here is the code:
Dim ImageURL As String = "/Uploads/Gallery/" + ImageID + ".jpg"
Dim oBitmap As New Bitmap(Server.MapPath(ImageURL))
Dim Ratio As Integer = oBitmap.Width / 572
Try
Dim X1, Y1, X2, Y2, Width, Height As Integer
Try
X1 = x1txt.Text
Y1 = y1txt.Text
X2 = x2txt.Text
Y2 = y2txt.Text
Width = widthtxt.Text
Height = heighttxt.Text
Catch
End Try
X1 = X1 * Ratio
Y1 = Y1 * Ratio
X2 = X2 * Ratio
Y2 = Y2 * Ratio
Width = Width * Ratio
Height = Height * Ratio
Dim TopLeft As New Point(X1, Y1)
Dim BottomRight As New Point(CInt(X1) + CInt(Height), CInt(Y1) + CInt(Width))
Dim BitmapToSave As New Bitmap(oBitmap.Width, oBitmap.Height)
Dim objGraphics As System.Drawing.Graphics
objGraphics = System.Drawing.Graphics.FromImage(BitmapToSave)
objGraphics.DrawImage(oBitmap, 0, 0)
oBitmap.Dispose()
BitmapToSave = img.CropImage(BitmapToSave, TopLeft, BottomRight)
BitmapToSave.Save(Server.MapPath(ImageURL))
BitmapToSave.Dispose()
Catch
End Try
해결책
You can use this convertor: Convert VB.NET to C#
string ImageURL = "/Uploads/Gallery/" + ImageID + ".jpg";
Bitmap oBitmap = new Bitmap(Server.MapPath(ImageURL));
int Ratio = oBitmap.Width / 572;
try {
int X1 = 0;
int Y1 = 0;
int X2 = 0;
int Y2 = 0;
int Width = 0;
int Height = 0;
try {
X1 = x1txt.Text;
Y1 = y1txt.Text;
X2 = x2txt.Text;
Y2 = y2txt.Text;
Width = widthtxt.Text;
Height = heighttxt.Text;
} catch {
}
X1 = X1 * Ratio;
Y1 = Y1 * Ratio;
X2 = X2 * Ratio;
Y2 = Y2 * Ratio;
Width = Width * Ratio;
Height = Height * Ratio;
Point TopLeft = new Point(X1, Y1);
Point BottomRight = new Point(Convert.ToInt32(X1) + Convert.ToInt32(Height), Convert.ToInt32(Y1) + Convert.ToInt32(Width));
Bitmap BitmapToSave = new Bitmap(oBitmap.Width, oBitmap.Height);
System.Drawing.Graphics objGraphics = null;
objGraphics = System.Drawing.Graphics.FromImage(BitmapToSave);
objGraphics.DrawImage(oBitmap, 0, 0);
oBitmap.Dispose();
BitmapToSave = img.CropImage(BitmapToSave, TopLeft, BottomRight);
BitmapToSave.Save(Server.MapPath(ImageURL));
BitmapToSave.Dispose();
} catch {
}
다른 팁
Try this tool to do such things:
I believe StackOverflow isn't a do-some-work-for-you community!
This is my version, done by hand and C#-orized. Hopefully it has no typos. I've changed the try clause as it could have had zero widths and heights.
string imageUrl = "/Uploads/Gallery/" + ImageID + ".jpg";
Bitmap bitmap = new Bitmap(Server.MapPath(imageUrl));
int ratio = bitmap.Width / 572;
int x1,y1,x2,y2,width,height;
try
{
x1 = int.Parse(x1txt.Text);
y1 = int.Parse(y1txt.Text);
x2 = int.Parse(x2text.Text);
width = int.Parse(widthtxt.Text);
height = int.Parse(heightxt.Text);
x1 *= ratio;
y1 *= ratio;
x2 *= ratio;
y2 *= ratio;
width *= ratio;
Point topLeft = new Point(x1,y1);
Point bottomRight = new Point(x1 + height,y1 + width);
Bitmap bitmapToSave = new Bitmap(bitmap.Width,bitmap.Height);
using (Graphics graphics = Graphics.FromImage(bitmapToSave))
{
graphics.DrawImage(bitmap,0,0);
}
bitmapToSave = img.CropImage(bitmapToSave,topLeft,bottomRight);
bitmapToSave.Save(Server.MapPath(imageUrl));
}
catch (FormatException e)
{
// Log
}
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