How to pass Date time Field blank value in c# and Oracle Procedure

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How to pass Date time Field blank value in c# and Oracle Procedure?

This is My Object Code..............

C#

 public class kNewCustomerinformation
    {
private DateTime? trade_lice_dt=null;
       private DateTime? reg_dt=null;
       private DateTime? comm_Business_dt=null;
}

This is My Oracle Procedure.............
CREATE OR REPLACE PROCEDURE SA.WSP_INS_CRM_CUSTOMER
(

VTRADE_LICE_DT IN DATE,
VREG_DT IN DATE,
comm_Business_dt DATE
VVMSG OUT VARCHAR2 ,
VVMSG_CODE OUT VARCHAR2
)

Then Insert Table and pass parameter variable value.

And my Dataservice Pass Parameter Value

fbDataAccess.FBWDatabase.AddInParameter(dbCommand, "VTRADE_LICE_DT", DbType.DateTime, objIndividualCustomerInformation.trade_lice_dt);

fbDataAccess.FBWDatabase.AddInParameter(dbCommand, "VTRADE_LICE_DT", DbType.DateTime, objIndividualCustomerInformation.reg_dt);

fbDataAccess.FBWDatabase.AddInParameter(dbCommand, "VTRADE_LICE_DT", DbType.DateTime, objIndividualCustomerInformation.comm_Business_dt);

fbDataAccess.ExecuteInsert(dbCommand);

When Execute this sp then exception "ORA-01036: illegal variable name/number".

How can pass blank Value date field.
Please Help me.

Posted 16-Sep-15 0:21am

Member 11988257

Updated 16-Sep-15 0:25am

v2

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[no name] 16-Sep-15 6:32am

Are you sure, using three times the same Parameter Name "VTRADE_LICE_DT" in your code is what you like to do?

2 solutions

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Jörgen Andersson · Answer 1 · 2015-09-16T02:37:00

Solution 1

By converting null to DbNull.Value and passing it as an object

C#

fbDataAccess.FBWDatabase.AddInParameter(dbCommand, "VTRADE_LICE_DT", DbType.DateTime, (object) objIndividualCustomerInformation.trade_lice_dt ?? DbNull.Value);

Posted 16-Sep-15 2:37am

Jörgen Andersson

Member 11477757 · Answer 2 · 2015-09-16T03:06:00

Hello please use this function.

C#

public static string DefaultDateIfNullOrEmpty(string value)
       {

           if (string.IsNullOrEmpty(value) || string.IsNullOrWhiteSpace(value))
           {
               return null;
           }
           else
           {
               return value;
           }
       }

it return null date when parameter or field is null.