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dotnet-framework-api
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C1.Win.C1Input.4.8 Assembly
- C1.Framework
- C1.Framework.Drawing.Gdi
- C1.Framework.Drawing.Gdi.DeviceContexts
- C1.Framework.Forms
- C1.Framework.Mathematics
- C1.Framework.Text.Lexicons
- C1.Globalization
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C1.Win.C1Input
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Classes
- ButtonImages
- ButtonImages.ButtonImagesTypeConverter
- C1BasePicker
- C1Button
- C1CheckBox
- C1ColorPicker
- C1ColorPickerDropDownForm
- C1ComboBox
- C1DateEdit
- C1DbNavigator
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C1DropDownControl
- Constructors
- Properties
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Methods
- CalcSizeInternal
- CloseDropDown
- CreateAccessibilityInstance
- Dispose
- DrawCustomArea
- DrawImage
- GetImageSize
- OnBeforeDropDownOpen
- OnButtonCursorChanged
- OnClick
- OnCreateDropDownFrom
- OnCursorChanged
- OnCustomButtonClick
- OnDropDownAlignChanged
- OnDropDownClosed
- OnDropDownFormAlignChanged
- OnDropDownOpened
- OnDropDownOpening
- OnDropDownStyleChanged
- OnEnabledChanged
- OnGotFocus
- OnInvalidated
- OnLostFocus
- OnModalButtonClick
- OnMouseLeave
- OnMouseMove
- OnMouseWheel
- OnReadOnlyChanged
- OnTextChanged
- OnUpDownButtonClick
- OnValueChanged
- OpenDropDown
- PreProcessMessage
- ProcessKeyDown
- ProcessKeyPress
- ProcessKeyUp
- ResetButtonCursor
- ResetButtonImages
- ResetDropDownFormClassName
- SetProposedValue
- ShouldDrawPlaceholder
- ShouldHandleEscape
- ShouldSerializeButtonCursor
- ShouldSerializeButtonImages
- ShouldSerializeDropDownFormClassName
- SpinDown
- SpinUp
- WndProc
- Events
- C1FontPicker
- C1FontPickerDropDownForm
- C1InputStrings
- C1Label
- C1NumericEdit
- C1PictureBox
- C1RangeSlider
- C1RangeSlider.RangeSliderStyleCollection
- C1RangeSlider.RangeSliderStyleCollection.BarStyleCollection
- C1RangeSlider.RangeSliderStyleCollection.ThumbStyleCollection
- C1SplitButton
- C1TextBox
- CharHelper
- ComboBoxItemList
- ComboBoxStyle
- CultureInfoSetupEventArgs
- CustomPlaceholder
- DataSourceException
- DateEditMonthCalendar
- DropDownCalculator
- DropDownCalendar
- DropDownClosedEventArgs
- DropDownForm
- DropDownItem
- DropDownItemClickedEventArgs
- DropDownItemCollection
- DropDownItemStyle
- ErrorInfo
- FindTypeByName
- FormatErrorEventArgs
- FormatEventArgs
- FormatInfo
- InvalidFontFamily
- JapaneseEraHelper
- Margins
- MaskInfo
- NavigatorAddingEventArgs
- NavigatorBeforeActionEventArgs
- NavigatorButtonClickEventArgs
- NavigatorDeletingEventArgs
- NavigatorEditingEventArgs
- NavigatorErrorEventArgs
- NullableDateTimeEventArgs
- NumericEditCalculator
- ParseEventArgs
- ParseInfo
- PlaceholderCollection
- PostValidation
- PostValidationEventArgs
- PreValidation
- PreValidationEventArgs
- TooltipShowingEventArgs
- TranslateValues
- UIStrings
- UIStringsItemEventArgs
- UpDownButtonClickEventArgs
- ValidationErrorEventArgs
- ValidationException
- ValueInterval
- ValueIntervalCollection
- Structs
- Enums
- Delegates
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Classes
- C1.Win.C1Input.Design
- C1.Win.C1Input.Enums
- C1.Win.C1Input.GrapeCity.Editors
- C1.Win.C1Input.GrapeCity.Editors.Fields
- C1.Win.C1Input.GrapeCity.Framework.Input
- C1.Win.C1Input.Localization
- C1.Win.Input.MultiSelect.4.8 Assembly
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C1.Win.C1Input.4.8 Assembly
- dotnet-api
C1.Win.C1Input.C1DropDownControl.OnBeforeDropDownOpen
OnBeforeDropDownOpen Method
OnBeforeDropDownOpen(CancelEventArgs)
Declaration
protected virtual void OnBeforeDropDownOpen(CancelEventArgs e)Parameters
| Type | Name | Description |
|---|---|---|
| CancelEventArgs | e |