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Can you use contains key in Visualforce page?
I have an apex:pageblocktable in VF Page with 2 columns. The 2nd column is displayed from a map. The above gives error, when the Map doesn’t contain that zipCode. Can we use CONTAINS KEY in Visualforce page to check for the key existence?
How to create a Salesforce map using Visualforce?
Visualforce maps are interactive, JavaScript-based maps, complete with zooming, panning, and markers based on your Salesforce or other data. Create standalone map pages, maps that you can insert into page layouts, and even mobile maps for the Salesforce app. Visualforce provides a set of related mapping components.
How to reference apex maps and lists in Visualforce?
Visualforce pages that use dynamic bindings can reference the Apex Map and List data types in their markup. Use dynamic references to lists and maps in an tag to create forms using data that isn’t in your organization’s custom objects.
Can We check if a key exists in a map in VF page?
A Visualforce page should be used simply for View logic. Instead, add it as part of your controller: You can build a delimited string with all the keys of the map in controller and then you use SF formula in a rendered condition display map values with the key.
Why are maps not working in VF pages?
I have been having some serious issues getting maps to work like they should in VF pages, but it seems that the functions we have to check if it has null or blank values don’t really work for maps. Here is a simple example of what I am trying to do:
Why is the map key not found in the isblank?
Even it it wasn’t an Attachment, it could be anything, the point is that the ISBLANK should see if the map has a value and if not, don’t show it, instead it causes an error on the page: I added a debug and the Map key is there, even though the error complains about it not being there.