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User_name() Not working in Grid

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  • User_name() Not working in Grid

    The following syntax has been used: User_name() - Date() - Time()

    Corresponding Fields in a .dbf table have been defined as calculated and they include the above expressions.

    A grid which is based on the above table, in Preview is populated as expected by variable, user name, date and time records.

    Please help to understand why a record populated via internet explorer auto-populates date and time fields but NOT the user name. How can it be done?

  • #2
    Re: User_name() Not working in Grid

    The User_name() can't get the current User because it's a desktop only function. The security for the desktop and web are completely different. Date and Time work because they're universal, in this case.

    I haven't tried this, but instead of User_Name() try A5WS_GETCURRENTUSER(). It's a guess... going to go try it now. If that doesn't work then you may have to load the user name yourself when a new record is activated.

    Comment


    • #3
      Re: User_name() Not working in Grid

      Hi David,
      thanks for your repply. Not able to get to work, i now get the following error "Can't put to calculated field".
      I could do with an example in order to follow the second part of your repply.

      Cheers
      Tasos

      Comment


      • #4
        Re: User_name() Not working in Grid

        Change your table username field from Calculated to User Entered.
        In your Grid, Client-Side Events, onRowFocus put something like this...
        Code:
        //place this Javascript in your code, and then reference the rowNum variable.
        var rowNum = {Grid.Object}._selectedRow;
        if (rowNum < 0)
        	{
        	{grid.Object}.ajaxCallback('G',rowNum,'GetCurrUser');
        	}
        This checks the row number and if it's less than zero - because the new row numbers are less than zero - then perform an Ajax Callback.

        In your Grid Properties, under Xbasic function declarations put this... it's just the last line... all the rest was created by Alpah5

        Code:
        function GetCurrUser as c (e as p)
        'This function will handle the Ajax callback. 
        'It must return a string of Javscript commands that will be executed in the Browser.	
        
        'The 'e' object contains all of the data that is submitted in the Ajax callback.
        
        'In addition, the 'e' object contains:
        'e._currentRowDataOld - (only if the grid is editable) - original value in the current row before field was edited. 
        '	examples:  e._currentRowDataOld.lastname, e._currentRowDataOld.firstname
        'e._currentRowDataNew as p - current field values in the current row.
        '	examples:	e._currentRowDataNew.lastname, e._currentRowDataNew.firstname
        'e._currentRowKeys - an array containing primary key field values for the current row
        '	example: If the primary key for the table that the grid is based on is 'Lastname' and 'Firstname', 
        '	e._currentRowKeys[1] will contain the value for 'Lastname' and e._currentRowKeys[2] will contain the value for 'Firstname'
        
        'e._gridCurrentFilter - current filter expression if the Grid has been filtered
        'e._gridCurrentOrder - current sort expression
        'e._gridCurentArgumentsXML - XML value of the sql::arguments object for any parameters in the e._gridCurrentFilter property.
        'Note: If the Grid is based on a SQL statement, to get the current SQL statement for the Grid (combining the SQL statement that the Grid is based on 
        'with the current Grid filter and order), you can use this Xbasic:
        'gridSQL = a5_sql_addfilterorder(e.tmpl.cs.sql,e._gridCurrentFilter,"",e._gridCurrentOrder)
        
        'e._isLinkedGrid - .t. if the Grid is a linked Grid (i.e. it has a parent Grid)
        'e._linkValues = linking value. Contains a CRLF delimited list of linking values in this format: fieldname|type|linkingValue
        
        'If the Grid checkbox column is turned on, the 'e' object will contain this properties
        'e.checkboxFilter - a filter command to select all of the checked rows
        'e.checkboxFilterArgumentXML - (for SQL Grids only) if the Grid is based on SQL tables, the e.checkboxFilter property will use arguments (e.g. customerID = :pkValue1)
        '							 - this property contains the XML version of the arguments
        'e.checkboxFilterArgumentsEncoded  - (for SQL Grids only) contains an encoded version of the e.checkboxFilterArgumentXML property that can be used in the .gridFilterSet() method.
        
        
        'In addition, the 'e' object contains:
        'e.tmpl - the Component definition
        'e.session - session variables
        'e.__si - state information that is stored in a hidden field in the component. 
        'e.rtc - holds runtime calculations that are performed when component is executing.
        
        'If you set certain properties in 'e._set' then the appropriate Javascript code will be automatically generated in the Ajax response
        'Examples:
        'e._set.lastname.value = "Smith"    --- will set the value of the 'Lastnme' field in the current row to "Smith"
        'e._set.lastname.style = "color: red;" --- will set the style attribute for the 'Lastname' field in the current row. 
        'e._set.lastname.className = "NewClassName" --- will set the ClassName attribute of the 'Lastname' field in the current row.
        'e._set.firstname.style.color = "red" --- will set the style.color attribute to 'Red' (preserving all other style attributes that had been set)
        'e._set.firstname.style.fontSize = "20pt" -- will set the style.fontSize attribute to '20pt' (preserving all other style attributes that had been set) (Important: the name of the style attribute is case-sensitive)
        
        'To set multiple values in a CheckBox or multi-select Dropdownbox control, set the .value property to a dot
        'variable that contains an array of values. The array must be called 'value'
        'Example:
        'Dim a as p   'a is an arbitrarily named dot variable
        'dim a.value[3] as c 'dim an array called 'value'
        'a.value[1] = "alpha"
        'a.value[2] = "beta"
        'a.value[3] = "gamma"
        'e._set.greekletters.value = a 
        
        'This will select 3 options ('alpha', 'beta' and 'gamma') in the checkbox group for the 'greekletters' control.
        
        
        
        'Note:
        'Assume your callback submitted data from the 'Grid' part, row 3:
        'e._set.lastname.value = "Smith" gets converted to this Javascript code: '{grid.object}.setValue('G','LASTNAME',3,'' + 'Smith',true);' and this code is automatically added to the Ajax response.
        
        'Note:
        'In addition to 'e._set', you can set properties of the 'e._setElement', 'e._setGridElement' and 'e._setRow<rowNumber>' objects.
        'Examples:
        'e._setRow3.lastname.value = "Smith"
        'e._setRow_1.firstname.value = "John" --- sets the value in the first New Record row
        'e._setElement.DIV1.value = "Some text" --- sets the innerHTML of DIV with the id of 'DIV1'
        'e._setGridElement.SPN2.style.color = "Red" ---- sets style properties of a SPAN with id of '{grid.componentname}.SPN2'
        
        
        'example code:
        'Return a Javascript command
        'GetCurrUser = "alert('You submitted a value of: " + js_escape(e._currentRowDataNew.lastname) + "');"
        
        e._set.username.value = a5ws_getcurrentuser()
        
        end function
        As usual, there are a few ways to get this done... this is just one way.
        You can hide the fields in the grid so you don't see the fields being populated.
        Hope that helps a bit.

        Comment

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