{"id":3497,"date":"2019-03-25T17:44:34","date_gmt":"2019-03-25T20:44:34","guid":{"rendered":"http:\/\/xexeu.elipse.com.br\/pt\/bug0013588-incompatible-types-when-calling-e3dataaccess-getvaluesetvalue-methods\/"},"modified":"2022-08-28T02:40:28","modified_gmt":"2022-08-28T05:40:28","slug":"bug0013588-incompatible-types-when-calling-e3dataaccess-getvaluesetvalue-methods","status":"publish","type":"post","link":"https:\/\/kb.elipse.com.br\/en\/bug0013588-incompatible-types-when-calling-e3dataaccess-getvaluesetvalue-methods\/","title":{"rendered":"BUG-0013588: Incompatible types when calling E3DataAccess’ GetValue\/SetValue methods."},"content":{"rendered":"
\n

OVERVIEW<\/b><\/p>\n

When using E3DataAccess <\/b>component in typeless languages, such as VBScript or Javascript, GetValue <\/i>method’s calls will return type mismatch errors. This happens because in typeless languages, the IN\/OUT<\/b> parameters’ types must be VARIANT. In VBA, for example, where all variables have defined types, this problem does not occur.<\/p>\n

HOW CAN I REPRODUCE THIS PROBLEM? <\/b><\/p>\n

For brevity purposes, we used Elipse E3 to reproduce this problem:
\n
\n<\/span><\/p>\n

\u00a0\u00a0\u00a0 Set <\/span>da = CreateObject<\/span>(\"E3DataAccess.E3DataAccessManager.1\"<\/span>)<\/span>\r\n\u00a0\u00a0\u00a0 Dim <\/span>r, a, b, c<\/span>\r\n\u00a0\u00a0\u00a0 r = da.GetValue(\"Data.Tag.Value\"<\/span>, a, b, c)<\/span>\r\n\u00a0\u00a0\u00a0 MsgBox <\/span>r\u00a0\u00a0\u00a0 <\/span><\/pre>\n
An error message is displayed: ‘Type mismatch: ‘da.GetValue”<\/i><\/p>\n

\nWORKAROUND<\/b><\/p>\n
    \n
  1. Use the control in a VBA environment.<\/li>\n
  2. Update E3 or the E3DataAccess to versions 4.5 or higher.<\/li>\n<\/ol>\n
    SITUATION <\/b><\/p>\n
    Elipse Software<\/b> has confirmed that this limitation <\/b>has existed since the component (E3DataAccess<\/b>) was created. The article Connecting an HTML page to an E3Server with communication library E3DataAccess using\u00a0 JavaScript and VBScript<\/b><\/a> contains the correction for versions 4.5<\/b> or higher<\/b>.<\/p>\n
    Versions 4.5 or higher also feature two new methods: ReadValue <\/i>and WriteValue<\/i>. They replace GetValue <\/i>and SetValue<\/i>, which henceforth must be avoided.
    \n<\/b><\/p>\n
    THIS ARTICLE APPLIES TO THESE PRODUCTS<\/p>\n
    E3DataAccess<\/b> version 4.5 or lower.<\/p>\n<\/div>\n
    <\/p>\n
    comprare cialis<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"
    OVERVIEW When using E3DataAccess component in typeless languages, such as VBScript or Javascript, GetValue method’s calls will return type mismatch errors. 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