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GeneralRe: C# code to chart sometimes charting blank charts Pin
Ralf Meier1-Dec-23 7:18
professionalRalf Meier1-Dec-23 7:18 
SuggestionRe: C# code to chart sometimes charting blank charts Pin
Richard Deeming30-Nov-23 22:56
mveRichard Deeming30-Nov-23 22:56 
AnswerRe: C# code to chart sometimes charting blank charts Pin
Richard MacCutchan30-Nov-23 23:15
mveRichard MacCutchan30-Nov-23 23:15 
GeneralRe: C# code to chart sometimes charting blank charts Pin
Iskander123451-Dec-23 1:23
Iskander123451-Dec-23 1:23 
GeneralRe: C# code to chart sometimes charting blank charts Pin
Richard MacCutchan1-Dec-23 3:06
mveRichard MacCutchan1-Dec-23 3:06 
AnswerRe: C# code to chart sometimes charting blank charts Pin
Dave Kreskowiak1-Dec-23 6:02
mveDave Kreskowiak1-Dec-23 6:02 
GeneralRe: C# code to chart sometimes charting blank charts Pin
Andre Oosthuizen1-Dec-23 23:30
mveAndre Oosthuizen1-Dec-23 23:30 
AnswerRe: C# code to chart sometimes charting blank charts Pin
jschell1-Dec-23 7:35
jschell1-Dec-23 7:35 
Iskander12345 wrote:
but when I use this filter, it often leads to blank chart


That is your specific problem.

Presumably you do not see the MessageBox for the exception ever.

I doubt the suggestion that 'Convert.ToInt32' is relevant. If it was throwing an exception you would see it. It might however return zero which leads to the next problem. It might return zero because that is a valid value though also.

Your code assumes all of the following
- That there are rows of any sort that are returned.
- That the data in those rows is 'valid' (see above.) But also is zero a valid value?

So what happens for the following
1. There are no rows?
2. The data returned is null. Which means id, value1, value2 will be zero?

I am not saying that is what is happening but rather if does that you are not going to get anything. So you need to check for that.

Perhaps as a minimum you should check the following
1. If there are no rows returned post (new MessageBox) and error about that. You should probably also post 'RawDataOrder'
2. Check that at least one (maybe two) rows exist and that both have non-zero data. If not post a different MessageBox error.
AnswerRe: C# code to chart sometimes charting blank charts Pin
Gerry Schmitz2-Dec-23 9:02
mveGerry Schmitz2-Dec-23 9:02 
GeneralRe: C# code to chart sometimes charting blank charts Pin
Iskander123452-Dec-23 17:02
Iskander123452-Dec-23 17:02 
Questionc# code Pin
j k Nov202329-Nov-23 18:13
j k Nov202329-Nov-23 18:13 
AnswerRe: c# code Pin
lmoelleb29-Nov-23 20:31
lmoelleb29-Nov-23 20:31 
GeneralRe: c# code Pin
j k Nov202329-Nov-23 21:04
j k Nov202329-Nov-23 21:04 
AnswerRe: c# code Pin
jschell30-Nov-23 7:05
jschell30-Nov-23 7:05 
AnswerRe: c# code Pin
Andre Oosthuizen1-Dec-23 23:35
mveAndre Oosthuizen1-Dec-23 23:35 
GeneralRe: c# code Pin
j k Nov20232-Dec-23 21:34
j k Nov20232-Dec-23 21:34 
GeneralRe: c# code Pin
Andre Oosthuizen3-Dec-23 3:35
mveAndre Oosthuizen3-Dec-23 3:35 
QuestionConverting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Codice Fictor26-Nov-23 13:19
Codice Fictor26-Nov-23 13:19 
AnswerRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Dave Kreskowiak26-Nov-23 15:07
mveDave Kreskowiak26-Nov-23 15:07 
GeneralRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Codice Fictor26-Nov-23 16:52
Codice Fictor26-Nov-23 16:52 
GeneralRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Richard MacCutchan26-Nov-23 22:28
mveRichard MacCutchan26-Nov-23 22:28 
GeneralRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Gerry Schmitz26-Nov-23 22:45
mveGerry Schmitz26-Nov-23 22:45 
GeneralRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Codice Fictor27-Nov-23 5:08
Codice Fictor27-Nov-23 5:08 
GeneralRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Gerry Schmitz27-Nov-23 6:54
mveGerry Schmitz27-Nov-23 6:54 
GeneralRe: Converting string into non-string Form.Object types for passing to methods or updating non-string object.Property with strings Pin
Codice Fictor27-Nov-23 7:47
Codice Fictor27-Nov-23 7:47 

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