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Getting value from a table opened in a different DS
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To
10/03/2010 10:54:22
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Vista
Network:
Windows 2003 Server
Database:
MS SQL Server
Miscellaneous
Thread ID:
01453599
Message ID:
01453754
Views:
60
>Create a class "Datamapper" as custom, that has on property and two methods:
>DataMapper.Aliasname
>dataMapper.Getvalue()
>datamapper.setvalue()
>
>The getValue() method is as follows:
>
>LPARAMETERS tcFieldname
>RETURN EVALUATE(THIS.Aliasname + "." + tcFieldname)
>
>
>and the setvalue() method is as follows:
>
>LPARAMETERS tcFieldname, tvValue
>REPLACE (tcfieldname) WITH tvvalue IN (THIS.AliasName)
>
>
>In your form, do the following code:
>
>MainapplicationObject.NEWOBJECT("Datamapper","Datamapper","LibraryWhereDatamapperexist")
>MainapplicationObject.Datamapper.Aliasname = ??? *you should know the aliasname here.
>MyValue = MainapplicationObject.Datamapper.GetValue("MyField")
>
>
>What do you think?
>

Yes, I like the idea - looks like it will work well - how this design pattern is called?
If it's not broken, fix it until it is.


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