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Writing the image to a file from the containerĭifferences between Container and Tempory Tables and Collection Classes Let us look when to use a Container, Temporary Table and Collection Classes Reading and storing image into the container Throw error("No rights to perform this action")

Perm = new FileIoPermission(fileNameWithPath, #openMode) The correct extension should be %2.", fileext, #JPEG)) Throw error(strFmt("The extension %1 is not allowed. Read, Save and Write Image to and from the container") ĭialogFileName = dialog.addField("fileNameOpen", "Select JPEG image file to import") įileNameWithPath = dialogFileName.value() Below are some of the most common container functions with examples.ĭialog = new Dialog("DAX ERP TRAINING Example.A container can be stored in the database as a dataBase coloumn created through AOT especially used to store images/files as a blob.are actually creating a new copy of the container. For example assignment of a container to another container variable and container functions such as conIns(), conDel(), conPoke(), += etc.A container is IMMUTABLE which means a container is never modified with any functions rather all X++ statements acting on a container are internally building a new container.Therefore, any variable declared as a container is automatically initialized to an empty container that contains no values.A container is a " PASS BY VALUE" type not "pass by reference" type which means while passing container the copy of container with values is passed not the reference.A container contains an ordered sequence of values (primitive dataTypes - int, str, real, date, boolean, enum etc.) or other containers or/and some composite data types.A container is not a class therefore classes/objects cannot be passed/put into a container.Containers are most frequently used in AX development so let us explore Containers and its features. However there are few limitations with Containers like "container cannot store objects" and "performance implications" and they can be addressed by collection classes and temporary tables concepts. Container solves this problem by storing many elements of different dataypes.To overcome this problem AX provides composite dataTypes arrays and containers, however arrays solve the former but supports only one dataType. Primitive dataType variable can hold only 1 value and that too of same dataType, if you want to store 500 values then you have to create/declare 500 variables and intialize them, also it doesn't support variables of different dataTypes.Composite dataTypes - Arrays, Containers, Collection Classes.In X++ (Object oriented programming language) the data or values stored in a Variable are of below types:.