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Delphi call the webservice of return value is null

Time:09-21

For a great god:

Question is like this, when using Delphi to invoke a web service (c # development) interface (Test (string AAA) : integer) are returned value is not 1, is 0.
But in Delphi call is sometimes couldn't catch the back as a result, shown as', '
And such a situation is occasional,
But will affect the normal use of the program, because the Delphi program must know the results back to effectively handle!
In c # to write some log data processing should be normal,
But in the case of Delphi call at the time when the value!

Don't know if you encounter such a situation, how to solve! Thank humbly!
Considering the problem of time interval for webservice calls also did delay processing, but still no effect,

CodePudding user response:

C # string can be replaced by WideString?
I am not very familiar c #, but guess, this string is unique to the c #, need to change to other type,
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