خطا Unhandled Exception در حین اجرای برنامه در سی شارپ

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.FormatException: Input string was not in a correct format.
   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at System.Int32.Parse(String s)
   at WindowsFormsApplication8.Form3.Form3_Load(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at A.H.QJ(Message& A)
   at A.K.QJ(Message& A)
   at A.GO.AR(Message& A)
   at A.GO.QJ(Message& A)
   at A.H.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
TP-Link Modem Security Settings
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/TP-Link%20Modem%20Security%20Settings.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
DevExpress.XtraEditors.v15.2
    Assembly Version: 15.2.7.0
    Win32 Version: 15.2.7.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/DevExpress.XtraEditors.v15.2.DLL
----------------------------------------
DevExpress.Utils.v15.2
    Assembly Version: 15.2.7.0
    Win32 Version: 15.2.7.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/DevExpress.Utils.v15.2.DLL
----------------------------------------
DevExpress.Data.v15.2
    Assembly Version: 15.2.7.0
    Win32 Version: 15.2.7.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/DevExpress.Data.v15.2.DLL
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
SkinSoft.VisualStyler
    Assembly Version: 2.4.0.0
    Win32 Version: 2.4.0.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/SkinSoft.VisualStyler.DLL
----------------------------------------
DevComponents.DotNetBar2
    Assembly Version: 11.7.0.0
    Win32 Version: 11.7.0.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/DevComponents.DotNetBar2.DLL
----------------------------------------
Accessibility
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
DevExpress.XtraLayout.v15.2
    Assembly Version: 15.2.7.0
    Win32 Version: 15.2.7.0
    CodeBase: file:///C:/Program%20Files%20(x86)/Microsoft/Setup1/DevExpress.XtraLayout.v15.2.DLL
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1081.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.