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GeneralRe: Winform dox matrix printer direct printing Pin
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GeneralRe: Winform dox matrix printer direct printing Pin
Dave Kreskowiak17-Jun-19 4:38
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GeneralRe: Winform dox matrix printer direct printing Pin
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QuestionBest way to store and display a customer notes system on a windows form. Pin
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QuestionWindows Form DownloadingMenager Pin
Pouriya 141761378-Mar-19 17:08
MemberPouriya 141761378-Mar-19 17:08 
Hello guys , I try to create a Download Manager but when I was running my project and I click in start download button after that this error happen.

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

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
   at DotnetDownloader.frmnewdownload.btnstartdownload_Click(Object sender, EventArgs e) in E:\VisualProject(CSharp)\DownloadMenager\DotnetDownloader\frmnewdownload.cs:line 72
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.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: 4.7.3056.0 built by: NET472REL1
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
DotnetDownloader
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///E:/VisualProject(CSharp)/DownloadMenager/DotnetDownloader/bin/Debug/DotnetDownloader.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3056.0 built by: NET472REL1
    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: 4.7.3056.0 built by: NET472REL1
    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: 4.7.3056.0 built by: NET472REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3056.0 built by: NET472REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3056.0 built by: NET472REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3056.0 built by: NET472REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.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.

-----------------------------------------------------------------------------------------------------------
AnswerRe: Windows Form DownloadingMenager Pin
Gerry Schmitz8-Mar-19 18:41
mveGerry Schmitz8-Mar-19 18:41 
AnswerRe: Windows Form DownloadingMenager Pin
Richard MacCutchan8-Mar-19 22:17
mveRichard MacCutchan8-Mar-19 22:17 
AnswerRe: Windows Form DownloadingMenager Pin
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QuestionTreeview iteration Pin
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AnswerRe: Treeview iteration Pin
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GeneralRe: Treeview iteration Pin
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QuestionToken (Close) option in combo box Pin
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AnswerRe: Token (Close) option in combo box Pin
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AnswerRe: ReactiveUI-WinForms bind combo datasource after selecting another combobox Pin
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GeneralRe: ReactiveUI-WinForms bind combo datasource after selecting another combobox Pin
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AnswerRe: Hello there. how to do a dynamic design (colors, background color etc ...)? Pin
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GeneralRe: Hello there. how to do a dynamic design (colors, background color etc ...)? Pin
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Rant[REPOST] Hello there. how to do a dynamic design (colors, background color etc ...)? Pin
Richard Deeming16-Oct-18 0:49
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QuestionHow to pass data from two or more forms ? Pin
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AnswerRe: How to pass data from two or more forms ? Pin
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