When this property is modified, it dispatches the showDataTipsChanged event. If true , and if the grid's data provider is an ICollectionView, and if the associated grid's sortableColumns property is true , then this column supports interactive sorting. Typically the column's header handles mouse clicks by setting the data provider's sort property to a Sort object whose SortField is this column's dataField. If the data provider is not an ICollectionView, then this property has no effect.
When this property is modified, it dispatches the sortableChanged event. The function that compares two elements during a sort of on the data elements of this column. If you specify a value of the labelFunction property, you typically also provide a sortCompareFunction. The sortCompareFunction's signature must match the following:. Note: The obj1 and obj2 parameters are entire data provider elements and not just the data for the item. When this property is modified, it dispatches the sortCompareFunctionChanged event.
If true , this column is sorted in descending order. For example, if the column's dataField contains a numeric value, then the first row would be the one with the largest value for this column.
Setting this property does not start a sort; it only sets the sort direction. When the dataProvider. When this property is modified, it dispatches the sortDescendingChanged event. Returns a SortField that can be used to sort a collection by this column's dataField. If the sortCompareFunction property is defined, then the SortField's compareFunction is automatically set. If the sortCompareFunction property is not defined and the dataField is complex, then the SortField's compare function is assigned to a closure around a default compare function that handles the complex dataField.
If the sortCompareFunction and dataField properties are not defined, but the labelFunction property is defined, then it assigns the compareFunction to a closure that does a basic string compare on the labelFunction applied to the data objects. If true , then display this column. If false , no space will be allocated for this column; it will not be included in the layout. When this property is modified, it dispatches the visibleChanged event.
The width of this column in pixels. If specified, the grid's layout ignores its typicalItem property and this column's minWidth and maxWidth properties. When this property is modified, it dispatches the widthChanged event.
Convert the specified data provider item to a column-specific datatip String. This method uses the values dataTipField and dataTipFunction. If those properties are null, it uses the corresponding properties from the associated grid control. If dataTipField properties is also null in the grid control, then use the dataField property.
If dataTipFormatter is specified then this method's value is the same as: dataTipFormatter. If item and dataTipFunction are not null, then this method returns dataTipFunction item, this , where the second argument is this GridColumn. Parameters item : Object — The value of grid. Convert the specified data provider item to a column-specific String. This method is used to initialize item renderers' label property. If labelFunction is null, and dataField is a string that does not contain ".
If dataField is a ". If item and labelFunction are not null, then this method returns labelFunction item, this , where the second argument is this GridColumn. Convert the specified data provider item to a column-specific item renderer factory.
By default this method calls the itemRendererFunction if it's non-null, otherwise it just returns the value of the column's itemRenderer property. The return value for the itemToLabel or itemToDataTip method if resolving the corresponding property name path fails. The value of this constant is a single space String: " ". Filters: Retrieving Data from Server Retrieving Data from Server Classes x. Package spark. Each data provider item for the control corresponds to one row of the grid.
The GridColumn class specifies the field of the data provider item whose value is to be displayed in the column. It also specifies the item renderer used to display that value, the item editor used to change the value, and other properties of the column.
Grid spark. Public Properties. You can learn a lot more by checking out some of our other resources below, or some of our tutorial videos. The complete code listing is there may be some variations, depending on your IDE template. Just make sure what we talked about above match :. It provides a modern, standards-based language and programming model that supports common design patterns suitable for developers from many backgrounds.
Developers, send an email to dev-subscribe flex. This may seem more complicated at first, but keep in mind that in doing flex work you have always created xml namespaces for all your view components in mxml.
So now you play on the same level as the core framework, which is great. Also in Flex 4 there are several languages and component sets that can be used, so it would be impossible to create that one-to-one mapping that existed in Flex 3. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.
Learn more. Ask Question. Asked 12 years ago. Active 6 years, 3 months ago. The procedure for determining the best match of an SplahsScreenImageSource definition to a mobile device is as follows:. Typically you do not call this method directly. You do not call this method directly; it is called internally by Flex. Override this method in a SplashScreenImage component if you want to override the default Flex logic of picking the best matching SplashScreenImageSource instance.
Parameters aspectRatio : String — Either flash. Called after the implementing object has been created and all component properties specified on the MXML tag have been initialized. If the object is a deep property on document , id is null. Filters: Retrieving Data from Server Retrieving Data from Server Classes x.
Package spark.
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