需要帮助将vb代码转换为c＃

Question

我想裁剪从数据库中检索的图像。我在网上找到了下面的代码，但它在vb中。我正在做基于asp.net c＃的网页，我不知道vb

任何人都可以痛苦给我的C＃代码到下面的VB代码？

帮助是非常可观的，我会非常感谢你。

下面是代码：

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 

Answer 1

您可以使用该转换器：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 { 
} 

Answer 2

尝试使用该工具做这样的事情：

• http://www.developerfusion.com/tools/convert/vb-to-csharp/

我相信StackOverflow不是一个为你工作的社区！

Answer 3

这是我的版本，由手工和C＃完成。希望它没有错别字。我已经改变了try子句，因为它可能有零宽度和高度。

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 
}