c# - asp.net with oracle connectivity issue -

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i trying add parameters using oracle database using following code :

for (int = 1; <= count; i++) {     var parametername = ":ref_cur" + i;     dbparameter parameter = acidaes.data.dbhelper.createrefcursorparameter(         parametername,          parameterdirection.output);     command.parameters.add(parameter); }

following crash occurs while adding parameters

[a]oracle.dataaccess.client.oracleparameter cannot cast [b]oracle.dataaccess.client.oracleparameter. type originates 'oracle.dataaccess, version=2.112.2.0, culture=neutral, publickeytoken=89b483f429c47342' in context 'default' @ location 'c:\windows\assembly\gac_32\oracle.dataaccess\2.112.2.0__89b483f429c47342\oracle.dataaccess.dll'. type b originates 'oracle.dataaccess, version=4.112.2.0, culture=neutral, publickeytoken=89b483f429c47342' in context 'default' @ location 'c:\windows\microsoft.net\assembly\gac_32\oracle.dataaccess\v4.0_4.112.2.0__89b483f429c47342\oracle.dataaccess.dll'.

didn't find way resolve crash.

you need check references, there mismatch in versions looking at:

dbparameter parameter =   acidaes.data.dbhelper.createrefcursorparameter(parametername, parameterdirection.output);

dbparameter referenced in code not of same type (version in case) being returned dbhelper class. need update these 2 projects refer same version of oracle.dataaccess.


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