topic Condition When Hyperlink File Does Not Exist for Feature in WebApp in ArcGIS Viewer for Flex Questions

Condition When Hyperlink File Does Not Exist for Feature in WebApp

MichaelVolz — Tue, 12 May 2015 19:03:03 GMT

In a FlexViewer app I currently have a hyperlink to a file with an Identify pop-up window. This link works for every feature in a mapservice because each feature has an associated file. Now I have another feature that only has links for certain features. If the enduser would click on a feature without an associated link I get a 404 - File or directory not found error. Do the Identify popups allow conditional statements in the xml file that would test for the existence of a linked file so the user could be informed in a more user friendly way that there is no associated feature for the selected feature?

Re: Condition When Hyperlink File Does Not Exist for Feature in WebApp

RobertScheitlin__GISP — Tue, 12 May 2015 21:05:53 GMT

Michael,

Sure I think the answer to this question is in this thread: Popup 3.0 - hide field if value=null

Re: Condition When Hyperlink File Does Not Exist for Feature in WebApp

RhettZufelt — Sat, 11 Dec 2021 23:36:31 GMT

Of course, this means changing the source and re-compiling. If you have this ability, this is one way I have handled that in the past.

Assuming my hyperlinks are to a photo and works great if there is a valid filename in there. However, if there is no value in there, would throw an error, so in my popuprendererskin, I have added something similar to:

        if (fieldInfo.fieldName == "PHOTO"){
          if(formattedAttributes[fieldInfo.fieldName] == " "){
           formattedAttributes[fieldInfo.fieldName] = "PlaceHolderFilename.jpg";
          }

This way, if the field is "PHOTO" and the value is blank/null, it will replace the value with "PlaceHolderFilename.jpg". then, in the folder with the other images, there is a jpeg named PlaceHolderFilename.jpg which says "No Photo Available".

So, if it has a valid link, the popup will show it, if not, will show a link to this "No Photo Available" document.