AdvantageGrid Methods

Returns a new empty List of the same element type as myObjectList. The input is used purely for type inference and is not read; equivalent to new List<T>() but lets callers avoid restating the type argument.

Locates a record in myObjectList whose properties match every GridDataKeyValue in keyCritera. Used by event handlers to resolve Item back to the original entity in the caller's source list.

Translates Telerik grid commands (InitInsert, Select, Delete, Active/InActive, Featured/NotFeatured) into the strongly-typed OnLoadObject, OnDeleteObject, OnToggleActive, OnToggleFeature events. Cancels Telerik's built-in insert flow on the Add button — the host is expected to raise its own edit form instead.

Builds the post-drop ordering and raises OnReordered. Walks the destination table view, swapping the dragged and target rows according to GridItemDropPosition, and emits the new sequence as Items. No-ops when the drop occurs on an external HTML element.

Materialises the user's Columns into Telerik GridBoundColumn instances inserted between the auto-generated Edit column (index 0) and the Active/Feature/Delete trio (last 3). Also applies ShowEditFunction, ShowDeleteFunction and the active/feature column visibility derived from whether handlers are attached.

Applies grid configuration, adds the four template columns (Edit / Feature / Active / Delete), wires ItemCommand, ItemDataBound and RowDrop to the internal handlers, and honours DisableSorting before deferring to the base implementation.

Re-applies the current DataKeyNames to MasterTableView.DataKeyNames at OnLoad. This is the closing of a timing gap: the same assignment runs in InitializeControl()()()() (during OnInit, picks up markup-set values) and in grdListItems_PreRender(Object, EventArgs) (catches anything set after Load). The OnInit pass alone misses code-behind values written by the host in its own OnInit body, Page_Load, or grid-property setter calls in load-time code — those run AFTER the child grid's OnInit because child OnInit cascades before parent OnInit. Setting at OnLoad here, AFTER LoadViewState and AFTER the host's own OnLoad / Page_Load has cascaded down, makes [MasterTableView.DataKeyNames] reflect the configured value before ItemCommand and other postback events fire — so event args land with the right DataField entries for the host's resolve-row-from-keys logic.

Synchronises the toolbar buttons with the Show… flags, materialises the user's Columns definitions into Telerik GridBoundColumn instances, and triggers a final Rebind()()()() so the grid renders with the latest data.