XML File Importer Enhancements

There couple of suggestion I have to make XML/WSDL importers little more user friedly

• let the user double click on the element/attribute in the XML tree to add as column. Currently user need to right click and select to add.

• When a element/attribute is added have it decorated with some different graphic such that user knows that particular element/attribute is already added. (Elements can be added twice, there is no restrictions)

• Currently root element where the XPATH expressions for the columns are rooted from need to be selected by right clicking on the element. However the default shows empty. This should be by default set to "/", or have some mechanism to force this selection. Note also that if the user changes this after the column definitions, the original XPATH expressions need to be re-calculated to new root, or make the root read-only after the first selection. Another good guess for this is where the user first selected element from, set to that.

• may be a little text above the XML tree saying double click to select the columns would be helpful, I found right click by goofing around.

• I also believe "add" buttons not that useful, especially if they just adding a empty column and already have a "add selection as new column" button. Actually it is confusing. Keep up/down. "delete" is useful. You could also enable "delete" key on selection

• when same column is added, a different aliased name should be selected, as e1 as e1_1, e1_2 currently I see same name is given.