topic Re: A Possible Bug of Arcmap Add-In Combobox in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/a-possible-bug-of-arcmap-add-in-combobox/m-p/612280#M16442 <HTML><HEAD></HEAD><BODY><SPAN>It is my mistake. The cookie that the ComboBox.Add() returns does not start from 0. It is not a normal index.</SPAN></BODY></HTML> Mon, 23 Dec 2013 17:35:21 GMT HaoliangYu 2013-12-23T17:35:21Z A Possible Bug of Arcmap Add-In Combobox https://community.esri.com/t5/arcobjects-sdk-questions/a-possible-bug-of-arcmap-add-in-combobox/m-p/612279#M16441 <HTML><HEAD></HEAD><BODY><SPAN>Hello, I am using C# to develop an Arcmap addin. I wonder whether there is a bug at the function ComboBox.GetItem().</SPAN><BR /><BR /><SPAN>I tried to run the following code when the combobox was initialized: (an item is already added)</SPAN><BR /><PRE class="plain" name="code">MessageBox.Show(this.GetItem(0).Caption)</PRE><DIV style="display:none;"> </DIV><BR /><SPAN>but it failed to popup a messagebox. So I used this.items(0).Caption instead and it worked.</SPAN><BR /><BR /><SPAN>So I guess there is difference between ComboBox.GetItem(index) and ComboBox.items[index]. Or there may be a bug.</SPAN><BR /><BR /><SPAN>btw, is there a way that the add-in can get access to events of controls at ArcMap? For example, directly response to the layer addition or deletion.</SPAN></BODY></HTML> Mon, 23 Dec 2013 05:02:30 GMT https://community.esri.com/t5/arcobjects-sdk-questions/a-possible-bug-of-arcmap-add-in-combobox/m-p/612279#M16441 HaoliangYu 2013-12-23T05:02:30Z Re: A Possible Bug of Arcmap Add-In Combobox https://community.esri.com/t5/arcobjects-sdk-questions/a-possible-bug-of-arcmap-add-in-combobox/m-p/612280#M16442 <HTML><HEAD></HEAD><BODY><SPAN>It is my mistake. The cookie that the ComboBox.Add() returns does not start from 0. It is not a normal index.</SPAN></BODY></HTML> Mon, 23 Dec 2013 17:35:21 GMT https://community.esri.com/t5/arcobjects-sdk-questions/a-possible-bug-of-arcmap-add-in-combobox/m-p/612280#M16442 HaoliangYu 2013-12-23T17:35:21Z