Class DropDownUITypeEditor
Base class that provide functionality of DropDown list for PropertyGrid.
Inheritance
Namespace: Syncfusion.Windows.Forms.Tools.MultiColumnTreeView
Assembly: Syncfusion.Tools.Windows.dll
Syntax
public abstract class DropDownUITypeEditor : UITypeEditorConstructors
DropDownUITypeEditor()
Initialize a new instance of the DropDownUITypeEditor class.
Declaration
public DropDownUITypeEditor()Properties
Context
Gets current context of editor.
Declaration
protected ITypeDescriptorContext Context { get; }Property Value
| Type |
|---|
| System.ComponentModel.ITypeDescriptorContext |
ListBox
Gets drop down control
Declaration
protected ListBox ListBox { get; }Property Value
| Type |
|---|
| System.Windows.Forms.ListBox |
Methods
EditValue(ITypeDescriptorContext, IServiceProvider, Object)
Edits the specified object's value using the editor style indicated by the EditValue() method.
Declaration
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)Parameters
| Type | Name | Description |
|---|---|---|
| System.ComponentModel.ITypeDescriptorContext | context | It can be used to gain additional context information. |
| System.IServiceProvider | provider | It can used to obtain services. |
| System.Object | value | The value of the object. |
Returns
| Type |
|---|
| System.Object |
GetEditStyle(ITypeDescriptorContext)
Edits the specified object's value using the editor style indicated by the GetEditStyle() method.
Declaration
public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)Parameters
| Type | Name | Description |
|---|---|---|
| System.ComponentModel.ITypeDescriptorContext | context | It can be used to gain additional context information. |
Returns
| Type |
|---|
| System.Drawing.Design.UITypeEditorEditStyle |
GetListItemsCollection()
Method return array of items that will be added as items into ListBox. User have to select value from this array for property.
Declaration
protected abstract object[] GetListItemsCollection()Returns
| Type | Description |
|---|---|
| System.Object[] | Array of values. |
GetSelectionIndex(Object)
On startup detect what item is selected and return its order index.
Declaration
protected abstract int GetSelectionIndex(object value)Parameters
| Type | Name | Description |
|---|---|---|
| System.Object | value | Selection Index value |
Returns
| Type | Description |
|---|---|
| System.Int32 | Selected item from DropDown list. |
GetSelectionValue(Int32)
Method return by order index real value that have to be stored as property value.
Declaration
protected abstract object GetSelectionValue(int index)Parameters
| Type | Name | Description |
|---|---|---|
| System.Int32 | index | selected item from list |
Returns
| Type | Description |
|---|---|
| System.Object | corresponding value that index. |