EntitiesPanel class

April 28, 2021

A panel that contains and displays model's structure of entities and attributes.

public class Korzh.EasyQuery.WinForms.EntitiesPanel
    : Panel

Package: Korzh.EasyQuery.WinForms (targets: net461, net5.0-windows7.0, netcoreapp3.1)

Assembly: Korzh.EasyQuery.WinForms.dll

Constructors

Name Type Description
EntitiesPanel() void Initializes a new instance of the Korzh.EasyQuery.WinForms.EntitiesPanel class.

Properties

Name Type Description
FilterBehavior FilterOptions Gets or sets a value indicating how to define does the entity or attribute name pass the filter - if it starts with the filter string or if it contains that string.
ImageAddColumns Image Gets or sets the image for "Add Columns" button.
ImageAddConditions Image Gets or sets the image for "Add Conditions" button.
ImageSelectAll Image Gets or sets the image for "Select All" button.
ImageSelectNone Image Gets or sets the image for "Select None" button.
Model DataModel Gets or sets the Korzh.EasyQuery.DataModel object .
Query Query Gets or sets the Korzh.EasyQuery.Query object.
ShowAttributes ShowAttrOptions Gets or sets a value indicating which attributes should be shown in the control.
ShowClearSelectionButton bool Gets or sets a value indicating whether to show "Clear selection" button.
ShowColumnsButton bool Gets or sets a value indicating whether to show "Add columns" button.
ShowConditionsButton bool Gets or sets a value indicating whether to show "Add conditions" button.
ShowFilter bool Gets or sets a value indicating whether to show a filter panel.
ShowSelectAllButton bool Gets or sets a value indicating whether to show "Select all" button.
Texts TextStorage Gets an instance of Korzh.Utils.TextStorage object object which holds all text resources used in Korzh.EasyQuery.WinForms.QueryPanel object
TreeBorderStyle BorderStyle Gets or sets a value indicating which attributes should be shown in the control.

Events

Name Type Description
NodeAdding NodeAddingEventHandler Occurs when the new attribute node is to be added to the tree.

Methods

Name Type Description
AddSelectedAttributesToColumns() void Adds the selected attributes to the Columns' list of associated Query.
AddSelectedAttributesToConditions() void Adds the selected attributes to the root predicate of associated Query.
CheckDataModel() void Checks the Korzh.EasyQuery.DataModel object. Generates an exception if Korzh.EasyQuery.WinForms.EntitiesPanel.Model property has null value.
CheckQuery() void Checks the query Korzh.EasyQuery.Query. Generates an exception if Query property has null value.
ClearFilter() void Clears current filter (if any).
ClearSelection() void Deselect all items in the Entities tree.
CoreClearSelection() void Clear selection (core virtual method).
CoreFillEntityTree(TreeNodeCollection items, Entity parentEntity, bool keepSelection) void Fills the list (tree) of entities and their attributes.
CoreSelectAll() void Selects all items (core virtual method).
DoTreeAfterCheck(object sender, TreeViewEventArgs e) void Performs necessary actions on some node checkbox check/uncheck.
GetSelectedAttrs(MetaEntityAttrList attrList) int Fills the attrList param with the attributes wich nodes are selected in the tree.
OnNodeAdding(NodeAddingEventArgs e) void Raises the Korzh.EasyQuery.WinForms.EntitiesPanel.NodeAdding event.
OnSizeChanged(EventArgs e) void Overrides System.Windows.Forms.Control.OnSizeChanged(System.EventArgs).
UpdateModelInfo() void Updates all information based on data model information (such as list of entities).