Server Error in '/' Application.

Input string was not in a correct format.

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.FormatException: Input string was not in a correct format.

Source Error:


Line 263:					
Line 264:					string control = "Controls/Tema/" + aktiftema + "/Home.ascx";
Line 265:					string sablon = db.Tekveri("Dosya","Select Dosya from sablon where Id=(Select Sablon from tur where Id="+Convert.ToInt32(Request.QueryString["Tur_Id"])+")");
Line 266:					 
Line 267:					if (File.Exists(Server.MapPath("/") + "Controls/Sablon/" + sablon +".ascx"))

Source File: d:\vhosts\btteknolojilinuxxx.com\reksis.com.tr\Default.aspx.cs    Line: 265

Stack Trace:


[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +14542542
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +174
   System.Convert.ToInt32(String value) +64
   Yonetim_Default.Page_Load(Object sender, EventArgs e) in d:\vhosts\btteknolojilinuxxx.com\reksis.com.tr\Default.aspx.cs:265
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   Yonetim_Default.OnLoad(EventArgs e) in d:\vhosts\btteknolojilinuxxx.com\reksis.com.tr\Default.aspx.cs:83
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0