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e.checkedRows subelement not found, only sometimes when grid embedded in detail view

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    e.checkedRows subelement not found, only sometimes when grid embedded in detail view

    I've got a grid component with a checkbox column, and an action button in the grid toolbar above that calls the XBasic function below. This code was borrowed and modified, but has worked fine in multiple variations in multiple components, including this one.

    This component is opened in a detail view of another component, and works inconsistently there. Sometimes it works, and sometimes it has an error of "...e.checkedRows subelement not found."

    In working preview, it appears that e.checkedRows doesn't exist when no checkboxes are checked. But note in the code that to get to that line, it has passed the if statements requiring that there is at least one row checked, so e exists and theoretically has data in it. Can anyone help me understand why this sometimes fails?

    Thanks in advance.

    Code:
    IF eval_valid("e.checkboxRows.countChecked") = .t.
    	IF val(e.checkboxRows.countChecked) > 0
    		dim AllKeyValues as c
    		dim NumChecked as n
    		dim conn as SQL::Connection
    		dim sql_update as C
    		conn.PortableSQLEnabled = .t.
    		
    		NumChecked = val(e.checkboxRows.countChecked)' Total Number of checked rows
    		Key_Field =  "PA_ID" 'Your key (id) field
    		
    		'Get all keys
    		FOR i=1 TO NumChecked
    			KeyValue = eval("e.checkedRows.key" + i + "[1]")
    			AllKeyValues = AllKeyValues + " OR "+Key_Field+ "=" + KeyValue 
    		next
    		AllKeyValues = substr(AllKeyValues,4)
    		
    		SQL_Connection = "::Name::myservername"
    		Table_Name = "[perf alerts]"
    		
    		Set_Values = "PA_IncludeOnMD = 0" 'Fields you want to change and its values divided by comas
    		sql_update = "UPDATE "+Table_Name+" SET "+Set_Values+" WHERE "+AllKeyValues
    		
    		conn.open(SQL_Connection) 'Connection
    		conn.execute(sql_update)
    
    		Fn_Update = "{grid.object}.refresh();A5.msgBox.hide();alert('Selected Records will not show up on the current Monthly Documentation PDF.');"
    	ELSE
    		Fn_Update = "A5.msgBox.hide();alert('No Performance Alerts are currently checked.');"
    	END IF
    END IF

    #2
    Re: e.checkedRows subelement not found, only sometimes when grid embedded in detail v

    I've got a bunch of grids that use this technique and they all work. Recently I got some advice from Selwyn to reduce the complexity of my code and to rewrite the component. I did that and the failing component works fine now and I used most of the old code from the one that didn't work. It seems that sometimes a component just goes bad and it's quicker to rewrite it than try to fix it.

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      #3
      Re: e.checkedRows subelement not found, only sometimes when grid embedded in detail v

      Thanks Lee. I had already decided I might rethink the checkbox option in this instance, but my issue is more about my users wanting to call each component from a million different places. [The component] works, just not when you call it as an embedded grid in a detail view of a grid in a row expander...

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