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Datatype conversion

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databasehelptutorial
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  • K Offline
    K Offline
    krugger
    wrote on last edited by
    #1

    Hi all; I am writing an application which will have an ADO-based database connection. In order to send stuff to the DB, i need to convert variables from CString, char, int or Date into variants. However, it does not work for int and i still cannot figure out how to add data in a field whose type is date. Could somebody please help me. Thanks guys Krugger

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    • K krugger

      Hi all; I am writing an application which will have an ADO-based database connection. In order to send stuff to the DB, i need to convert variables from CString, char, int or Date into variants. However, it does not work for int and i still cannot figure out how to add data in a field whose type is date. Could somebody please help me. Thanks guys Krugger

      2 Offline
      2 Offline
      224917
      wrote on last edited by
      #2

      _variant_t( double dblSrc, VARTYPE vtSrc = VT_R8 ) Constructs a _variant_t object of type VT_R8 or VT_DATE from a double numerical value. Any other VARTYPE results in an E_INVALIDARG error. (msdn...) greatest thing is to do wot others think you cant :)
      suhredayan@omniquad.com

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      • K krugger

        Hi all; I am writing an application which will have an ADO-based database connection. In order to send stuff to the DB, i need to convert variables from CString, char, int or Date into variants. However, it does not work for int and i still cannot figure out how to add data in a field whose type is date. Could somebody please help me. Thanks guys Krugger

        S Offline
        S Offline
        Steve S
        wrote on last edited by
        #3

        int is an oddity, try casting it to a long. Steve S

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