topic Implementing Icombobox in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/implementing-icombobox/m-p/340981#M8950 <HTML><HEAD></HEAD><BODY><SPAN>I am currently converting an ArcGIS 9.3.1 extension to 10.&nbsp; The extension has several toolbars, two of which have pulldown selection menus, which will have to be re-created using comboboxes.&nbsp; The pulldowns are both populated from an external database and contents can change through a session.&nbsp;&nbsp; As the combobox contents are dynamic I only want to populate them if and when the user wants to change the selection and I would like to do this each time the combobox receives focus.&nbsp; I'd intended to use the onfocus event to update the items in the combobox but I have tested the comboxes repeatedly and I can't see the onfocus event being fired.&nbsp;&nbsp; Has anyone else experienced this?</SPAN></BODY></HTML> Fri, 07 Oct 2011 08:23:22 GMT StuartGillies 2011-10-07T08:23:22Z Implementing Icombobox https://community.esri.com/t5/arcobjects-sdk-questions/implementing-icombobox/m-p/340981#M8950 <HTML><HEAD></HEAD><BODY><SPAN>I am currently converting an ArcGIS 9.3.1 extension to 10.&nbsp; The extension has several toolbars, two of which have pulldown selection menus, which will have to be re-created using comboboxes.&nbsp; The pulldowns are both populated from an external database and contents can change through a session.&nbsp;&nbsp; As the combobox contents are dynamic I only want to populate them if and when the user wants to change the selection and I would like to do this each time the combobox receives focus.&nbsp; I'd intended to use the onfocus event to update the items in the combobox but I have tested the comboxes repeatedly and I can't see the onfocus event being fired.&nbsp;&nbsp; Has anyone else experienced this?</SPAN></BODY></HTML> Fri, 07 Oct 2011 08:23:22 GMT https://community.esri.com/t5/arcobjects-sdk-questions/implementing-icombobox/m-p/340981#M8950 StuartGillies 2011-10-07T08:23:22Z Re: Implementing Icombobox https://community.esri.com/t5/arcobjects-sdk-questions/implementing-icombobox/m-p/340982#M8951 <HTML><HEAD></HEAD><BODY><SPAN>Stuart,</SPAN><BR /><BR /><SPAN>You will have to explain at what point these dynamic changes must occur.&nbsp; From what I can tell, the ComboBoxes are populated when the Toolbar loads, then at some point they are then repopulated.</SPAN><BR /><BR /><SPAN>Are you having problems getting the CboBoxes to load on the first go?&nbsp; What action needs to occur for the ComboBox datasource to change?&nbsp; I don't see how simply gaining focus would be cause to change the control's datasource.</SPAN></BODY></HTML> Fri, 07 Oct 2011 11:49:17 GMT https://community.esri.com/t5/arcobjects-sdk-questions/implementing-icombobox/m-p/340982#M8951 JamesCrandall 2011-10-07T11:49:17Z