I've had this issue with trying to save the Multi Chart after configuring it for some time now, but never really pursued fixing it. According to this post:
"SAM's Multi Chart resource can be used on any Application Details view." However, every time I've tried to add it and configure it on an Application Details view (other than an AppInsight or Exchange View) I am able to add the resource fine, but after clicking on "Configure This Resource", then selecting the Component Monitors I want to display inside of it, and then clicking "Submit", I get "Unexpected Website Error" with the "Object reference not set to an instance of an object" error.
Here is the trace from the Error Report:
Message: Object reference not set to an instance of an object.
ErrorSite: App_Web.Orion_APM_Controls_Charts_EditMultiChart.SaveProperties
ErrorType: System.NullReferenceException
Stack:
at Orion_APM_Controls_Charts_EditMultiChart.SaveProperties(Dictionary`2 properties)
at Orion_NetPerfMon_Controls_EditResourceControls_EditChart.get_Properties()
at Orion_Charts_EditChartResource.SubmitClick(Object sender, EventArgs e)
at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e)
at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
If you look at user Bronx's reply right below this link in that Discussion:
he pasted in an excerpt from the SAM Admin Guide that is supposed to give step-by-step instructions on how to add the Multi Chart (it is even titled "Multi Chart"). However, if you read the instructions it says to search in the Add Resources section for "Multi Chart", but then it tells you to select the "Multiple Statistics Chart". Those are two different things. The Multiple Statistics Chart is for components that return multiple statistics. The Multi Chart is for charting multiple component monitors' statistics (It was a Typo I assume because it correctly says Multi Chart in the current Admin Guide). Anyways, no matter which one I choose I get the same error.
Now normally I would just open a case with support, but I have had this happen in probably 5 to 6 different Orion environments over the last year and a half and have never gotten it to work. It is always the same error no matter what. I have access to two separate Orion installations right now for two different companies and both exhibit the same behavior. Searching Thwack and the Web I can't find anyone else having this issue. Am I missing something super obvious or has nobody else pursued fixing it yet like I hadn't up until now?
Thanks,
Jordan