如何在RDLC報告c＃上顯示圖像（存儲流格式）？

Question

我想在rdlc報告上顯示條形碼圖像。

我使用以下代碼獲取該條形碼圖像的內存流。

安裝的NuGet從https://www.nuget.org/packages/Aspose.BarCode/

/// This function generates the QR code image using given string and returns the ImageByteArray 
    /// </summary> 
    /// <param name="QRCodeString">string from which the QR code Image will generate</param> 
    /// <param name="ImageWidth">Image Height</param> 
    /// <param name="ImageHeight">Image Width</param> 
    /// <param name="GetImageOnly">Set to true if you need only QR code image. Set to false if you need QR code image with code text below the image</param> 
    /// <returns></returns> 
    private MemoryStream GetQRCodeImage(string QRCodeString, int ImageWidth, int ImageHeight, bool GetImageOnly) 
    { 
     //Creating memory stream 
     System.IO.MemoryStream ms = new System.IO.MemoryStream(); 
     try 
     { 
      Aspose.BarCode.BarCodeBuilder builder = new BarCodeBuilder(); 
      //Set the Code text for the barcode 
      builder.CodeText = QRCodeString; 

      if (GetImageOnly) 
      { 
       // Set the code text location 
       builder.CodeLocation = CodeLocation.None; 
       //Get Only Imge 
       builder.GetOnlyBarCodeImage(); 
      } 
      //Set the symbology type to 
      builder.SymbologyType = Symbology.QR; 

      builder.ImageHeight = ImageHeight; 
      builder.ImageWidth = ImageWidth; 

      //Saving barcode image to memory stream 
      builder.BarCodeImage.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); 

      return ms; 
     } 
     catch (Exception ex) 
     { 
      throw; 
     } 
     finally 
     { 
      //Dont dispose here 
      // ms.Dispose(); 
     } 

    } 

，稍後我用這個存儲器流併發送至數據集，其我用越位RDLC文件。

在我的.cs

文件代碼

DatasetName = "DemoDataset"; 

         DataTable table1 = new DataTable("Details"); 
          table1.Columns.Add("Number"); 
          table1.Columns.Add("BarcodeImage"); 

         MemoryStream barcode = new MemoryStream(); 
         barcode = GetQRCodeImage("34526172", 600, 300, false); 

         table1.Rows.Add(12222, barcode.ToArray()); 

在我RDLC代碼

在表中使用簡單表達式來訪問這些值

=Fields!Number.Value 
=Fields!BarcodeImage.Value 

我能得到正確的號碼

But for BarcodeImage i'm getting value as System.ToArray()

w帽子出問題了？

Answer 1

也許你想將圖像轉換爲位圖？ 像

Bitmap image = barcode.GetOnlyBarCodeImage(); 

我上無法評價這一點，因爲上面的代碼執行時，我有這個錯誤：「對不起，評估版不允許產生這種類型的條形碼的形象」

老答案（而評論） - 左參考

你能提供的類BarCodeBuilder（） - 沒有它:)