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Refresh Edit-Combo Lookup after adding a new value

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    Refresh Edit-Combo Lookup after adding a new value

    How do I refresh an Edit-Combo lookup after allowing the user to modify the choices?

    I'm talking about a textbox control with a lookup set to Edit-Combo. It is a SQL based lookup.

    #2
    Re: Refresh Edit-Combo Lookup after adding a new value

    Larry,

    There is {dialog.Object}.refreshDropdownBoxChoices(), but I suppose that won't work on an EditCombo, but you could try. But the easy way it select 'Load Data Method' in the field's properties and set it to "Ajax Callback". Each time the user clicks the lookup it pulls the current data.
    Peter
    AlphaBase Solutions, LLC

    [email protected]
    https://www.alphabasesolutions.com


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      #3
      Re: Refresh Edit-Combo Lookup after adding a new value

      Perhaps, but …

      I am allowing the user to add an entry. That is happening in a Window on the same UX. So, the user will click a button to add a new entry, and when they leave that window I want to:

      1) save the new entry into the lookup table.
      2) Make the value of the textbox the new entry

      To complicate matters, I am displaying the name of the entry, but storing the ID - so I need the list to refresh so it will know the name of the ID I am putting in there - but no one is clicking the lookup a second time when they return from the window. (Though I could try setting the focus, maybe that will help …)

      Comment


        #4
        Re: Refresh Edit-Combo Lookup after adding a new value

        Use an Ajax Callback to update your SQL table with the new entry. Then, in this same code, select the items from your SQL Table for the Edit-Combo List. This will include your newly added entry.
        Convert the RecordSet to a JSON string, convert the CRLF to commas, add [] for use as an Array and then send that data string back to the Client into a Javascript function.

        Overall, you're saving your new entry, then getting your Edit-Combo items and putting them into a format that you can use back on the client with Javascript.

        Once back on the client, convert your JSON string into an Array, get a pointer to your edit-combo, and set the edit-combo control with your current items. Then set the selected value of your edit-combo to your newly added item.

        XBasic to send back data to a Javascript function:

        Code:
        function getEditComboData as c (e as p)
        	
        dim cn as SQL::Connection
        dim rs as SQL::ResultSet
        dim args as sql::arguments
        dim sqlStmt as c
        dim flag as l
        dim newData as c
        
        flag = cn.open("::name::test")
        
        sqlStmt = <<%str%
        	SELECT COMPID, COMPNAME FROM tblcompanies_copy1
        %str%
        
        flag = cn.execute(sqlStmt)
        if flag then
        	rs = cn.ResultSet
        	newData = rs.ToJSONObjectSyntax(-1,-1,.t.,.t.)
        	newData = "[" + newData + "]"
        	newData = crlf_to_comma(newData)
        	newData = js_escape(newData)
        	getEditComboData = "setComboData('" + newData + "');"
        else
        	getEditComboData = "alert('SELECT failed');"
        	cn.close()
        	end	
        end if
        
        cn.close()
        
        end function
        Javascript function to process data and "refresh" the edit-combo:

        Code:
        function setComboData(newData){
        
        	//refresh the edit-combo
        	var newComboData = JSON.parse(newData);
        	var editCombo = {dialog.Object}.getControl('TXTCOMPANIES');
        	editCombo.setData(newComboData);	
        
        	//set the selected value of the edit-combo
        	{dialog.Object}.setValue('txtCompanies',999);
        	
        }
        Depending on how your edit-combo is set up, you'll need to get the selected value for the .setValue().
        Last edited by Davidk; 01-21-2020, 01:40 AM.

        Comment


          #5
          Re: Refresh Edit-Combo Lookup after adding a new value

          Thank you David. I will try that out as soon as possible and report back!

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