Error Exception Not Object Reference Set
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Null Reference Exception Object Reference Not Set To An Instance Of An Object
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ASP.NET Community Standup Forums Help Home/ASP.NET Forums/Advanced ASP.NET/Enterprise Services Integration/How to fix "object reference not set to an instance of an object" How to fix "object reference not set to an instance how to handle object reference exception of an object" RSS 6 replies Last post Sep 19, 2016 05:12 AM
What Does Object Reference Not Set To An Instance Of An Object Mean
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Object Reference Not Set To An Instance Of An Object C#
Options Advanced Search Reply GargoyleXxX Member 2 Points 16 Posts How to fix "object reference not set to an instance of an object" May 28, 2012 12:16 AM|GargoyleXxX|LINK Hi, i have developed a https://support.microsoft.com/en-us/kb/810098 web-based project to call perfmon data using WMI query. During debug in Windows 7, VS 2010, it works fine. But, when i moved to Windwos Server 2008 with IIS 7.0, the problem came. Some of WMI query can be executed, like the Thread Count, Handles Count or Drive Usage. But the other some queries obtained error. Eg, It appaers the error when excecute to this part try https://forums.asp.net/t/1808030.aspx?How+to+fix+object+reference+not+set+to+an+instance+of+an+object+ { string query = "SELECT * FROM Win32_Processor"; ObjectQuery objectQuery = new ObjectQuery(query); ManagementObjectSearcher searcher = new ManagementObjectSearcher(objectQuery); foreach (ManagementObject productInfo in searcher.Get()) { string processorUsed = productInfo["LoadPercentage"].ToString(); drow[CUsage] = processorUsed; Session["CPU#"] = productInfo["NumberOfCores"].ToString(); } } catch (Exception ex) { ShowMessageBox("Processor Usage" + ex.Message); } I am still new to ASP.net and IIS.Any suggestion for this?? Reply pradeepnt Member 171 Points 149 Posts Re: How to fix "object reference not set to an instance of an object" May 28, 2012 01:13 AM|pradeepnt|LINK hi..... you can use catch (NullReferenceException ex) { ShowMessageBox("Processor Usage" + ex.Message); } Thanks and regards Pradeep Narayan Reply GargoyleXxX Member 2 Points 16 Posts Re: How to fix "object reference not set to an instance of an object" May 28, 2012 02:02 AM|GargoyleXxX|LINK The code that u proposed just to get the exception too... But my problem is the object of WMI query executed cannot go to an instance. I don't know whether the WMI query can be executed in IIS 7.0 or not, if it can, why do the object cannot be retrived?? i try to close the "catch" and get the details. The details are as shown: Server Error in '/WebSite4(2)' Application. -----------------------
use the previous link instead. Select a product Sort by Default Summary New or Updated Description Date Updated Direction Ascending Descending Helpful search tips Find the answer to your http://kb.act.com/app/answers/detail/a_id/24350/~/error%3A-%E2%80%9Cobject-reference-not-set-to-an-instance-of-an-object%E2%80%9D-when-attempting question Error: “Object Reference not set to an Instance of an object” when attempting to perform various actions in Act! Answer ID 24350 | Updated 09/10/2016 12:56 PM Symptom: While trying to use Act!, I'm receiving the Error: "Object reference not set to an instance of an object" Product Details: Product Family: Act! Product: Act! Pro, Act! Premium Version: 2005 and later Cause: This error message object reference is a common and generic run-time exception message for applications which use the Microsoft .NET Framework, such as Act!. The cause of the error is dependent upon what function you are attempting to use when the error message appears. This error has been known to occur when: Attempting to open the Layout Designer, save a layout, or when switching between layouts Upgrading your 3.x, 4.x, 5.x, or object reference not 6.x database to a newer version of Act! Creating a new database Editing a Note or History Importing a text delimited file Launching Act! Opening a 3.x, 4.x, 5.x, or 6.x report that was converted to 2005 or later Opening a database Opening Print Preview Clicking contact email address to create a new email message Sending an email In Act! using Microsoft Outlook 2002 or 2003 Performing a Mail Merge to Email Scheduling an Activity Attempting to restore a backup Changing the status of an Opportunity to "Closed" Attempting to enable Duplicate Checking after upgrading a database with custom or spillover tables to Sage ACT! 2013 Selecting Edit Mode in the Contact List in Sage ACT! 2013 Backspacing in a formatted Character Field Closing Act! in Windows 10 (Act! v17.2 and earlier) Attempting to restore a backup Solution: Refer to the applicable scenario below to resolve the issue: Attempting to open the Layout Designer, save a layout, or when switching between layouts For steps for resolving this issue when attempting to open the Layout Designer, save a layout, or when switching between layouts, refer to the following knowledgebase article: Error: “Object reference not set to an instance of
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error exception instance not object reference set
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Error Exception Information Instance ObjectASP NET Community Standup Forums Help Home ASP NET Forums Advanced ASP NET Enterprise Services Integration How to fix object reference not set to an instance of an object How to fix object reference not set to an instance system nullreferenceexception object reference not set to an instance of an object c of an object RSS replies Last post Sep AM by object reference not set to an instance of an object error lingmaaki Previous Thread Next Thread Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Support Options object reference not set
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Windows Errors
A Windows error is an error that happens when an unexpected condition occurs or when a desired operation has failed. When you have an error in Windows, it may be critical and cause your programs to freeze and crash or it may be seemingly harmless yet annoying.
Blue Screen of Death
A stop error screen or bug check screen, commonly called a blue screen of death (also known as a BSoD, bluescreen), is caused by a fatal system error and is the error screen displayed by the Microsoft Windows family of operating systems upon encountering a critical error, of a non-recoverable nature, that causes the system to "crash".
Damaged DLLs
One of the biggest causes of DLL's becoming corrupt/damaged is the practice of constantly installing and uninstalling programs. This often means that DLL's will get overwritten by newer versions when a new program is installed, for example. This causes problems for those applications and programs that still need the old version to operate. Thus, the program begins to malfunction and crash.
Freezing Computer
Computer hanging or freezing occurs when either a program or the whole system ceases to respond to inputs. In the most commonly encountered scenario, a program freezes and all windows belonging to the frozen program become static. Almost always, the only way to recover from a system freeze is to reboot the machine, usually by power cycling with an on/off or reset button.
Virus Damage
Once your computer has been infected with a virus, it's no longer the same. After removing it with your anti-virus software, you're often left with lingering side-effects. Technically, your computer might no longer be infected, but that doesn't mean it's error-free. Even simply removing a virus can actually harm your system.
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