• WPF için görüntüleyici desteği (WPF based Crystal Reports Viewer control)
• Basitleştirilmiş paket
• Adobe Flash desteği

Benim testlerime göre:

• Raporlar daha hızlı yüklenmekte ve beklemeyi minimuma indirmekte.
• Görüntüleme dili olarak Türkçe desteği eklenmiş.
• Rapor boyutu olarak kullanıcı tanımlı boyut eklenmiş (tam test edemedim)

Crystal Reports’un yeni versiyonunu şuradan indirebilirsiniz.


public static string ReverseString(string input, string separator, string outSeparator)
{
string result = String.Empty;
string[] temp = Regex.Split(input, separator, RegexOptions.IgnoreCase);
Array.Reverse(temp);
for (int i = 0; i < temp.Length; i++)
{
result += temp[i] + " " + outSeparator + " ";
}
return result;
}

Not: System.Text.RegularExpressions sınıfını kullanır.

Stackoverflow alternatifi:


public static string ReverseString(string input, string separator, string outSeparator)
{
return String.Join(" " + outSeparator + " ", input.Split(new[] { " " + separator + " " }, StringSplitOptions.RemoveEmptyEntries).Reverse().ToArray());
}

Not: System.Linq sınıfını kullanır.

Ayrıca stackoverflow tavsiyelerine göre fonksiyonu StringBuilder ile kullanmak uzun metinsel ifadelerde performans sağlayacaktır:


public static string ReverseString(string input, string separator, string outSeparator)
{
StringBuilder result = new StringBuilder();
string[] temp = Regex.Split(input, separator, RegexOptions.IgnoreCase);
Array.Reverse(temp);
for (int i = 0; i < temp.Length; i++)
{
result.Append(temp[i] + " " + outSeparator + " ");
}
return result.ToString();
}


Also you can add rdr.Dispose(); In my code I delete previous uploaded files and sometimes it gives error when the file that needs to be deleted is already deleted. And this is the reason why command cannot be closed. So close and dispose the reader. Problemo solved

Error:
COM object that has been separated from its underlying RCW cannot be used.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Runtime.InteropServices.InvalidComObjectException: COM object that has been separated from its underlying RCW cannot be used.

Stack Trace:

[InvalidComObjectException: COM object that has been separated from its underlying RCW cannot be used.]
   System.Data.Common.IAccessor.ReleaseAccessor(IntPtr hAccessor, Int32& pcRefCount) +0
   System.Data.OleDb.RowBinding.Dispose() +86
   System.Data.OleDb.Bindings.Dispose() +30
   System.Data.OleDb.OleDbCommand.CloseInternalParameters() +18
   System.Data.OleDb.OleDbCommand.ResetConnection() +23
   System.Data.OleDb.OleDbCommand.Dispose(Boolean disposing) +27
   System.ComponentModel.Component.Dispose() +17
   Admin_addContent.LoadCategory() in z:\siteRoot\*.com\Admin\addContent.aspx.cs:223
   Admin_addContent.Page_Load(Object sender, EventArgs e) in z:\siteRoot\*.com\Admin\addContent.aspx.cs:29
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

EN: .net icon error. Change or remove the icon you are using in current project. In case of using an icon, containing size 256×256 Vista format (These icons which you can’t preview with Windows Picture and Fax Viewer), vb.net produces this error.

full error:

Error 1 Unable to write to output file ‘X:\Projects\obj\Debug\WindowsApplication1.exe’: System Error &H80070714&