130 lines
4.0 KiB
C#
130 lines
4.0 KiB
C#
using System;
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using System.Drawing;
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using System.Windows.Forms;
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namespace AT.STO.UI.Win
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{
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/// <summary>
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/// Represents the method which responds to a <see cref="DropDownCancel"/> event.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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public delegate void DropDownCancelEventHandler(object sender, DropDownCancelEventArgs e);
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/// <summary>
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/// Represents the method which responds to a <see cref="DropDownClosed"/> event.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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public delegate void DropDownClosedEventHandler(object sender, DropDownClosedEventArgs e);
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/// <summary>
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///
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/// </summary>
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/// <param name="sender">The object firing the event.</param>
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/// <param name="e"></param>
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public delegate void DropDownValueChangedEventHandler(object sender, DropDownValueChangedEventArgs e);
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/// <summary>
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/// Arguments to a <see cref="DropDownCancelEvent"/>. Provides a
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/// reference to the popup form that is to be closed and
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/// allows the operation to be cancelled.
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///
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/// Thousand thanks to Steve McMahon:
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/// http://www.vbaccelerator.com/home/NET/Code/Controls/Popup_Windows/Popup_Windows/Popup_Form_Demonstration.asp
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/// </summary>
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public class DropDownCancelEventArgs : EventArgs
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{
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#region Private Variable Declarations
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private Point _cursorLocation;
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private readonly Form _dropDown = null;
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#endregion
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#region Constructor / Destructor
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/// <summary>
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/// Constructs a new instance of this class.
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/// </summary>
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/// <param name="DropDown">The popup form</param>
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/// <param name="CursorLocation">The mouse location, if any, where the
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/// mouse event that would cancel the popup occured.</param>
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public DropDownCancelEventArgs(Form DropDown, Point CursorLocation)
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{
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_dropDown = DropDown;
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_cursorLocation = CursorLocation;
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Cancel = false;
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}
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#endregion
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#region Public Properties
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/// <summary>
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///
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/// </summary>
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public bool Cancel { get; set; } = false;
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/// <summary>
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///
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/// </summary>
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public Point CursorLocation => _cursorLocation;
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/// <summary>
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///
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/// </summary>
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public Form DropDown => _dropDown;
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#endregion
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}
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/// <summary>
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/// Contains event information for a <see cref="DropDownClosed"/> event.
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///
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/// Thousand thanks to Steve McMahon:
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/// http://www.vbaccelerator.com/home/NET/Code/Controls/Popup_Windows/Popup_Windows/Popup_Form_Demonstration.asp
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/// </summary>
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public class DropDownClosedEventArgs : EventArgs
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{
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#region Private Variable Declarations
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private readonly Form _dropDown = null;
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#endregion
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#region Constructor / Destructor
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/// <summary>
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/// Constructs a new instance of this class for the specified
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/// popup form.
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/// </summary>
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/// <param name="DropDown">DropDown Form which is being closed.</param>
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public DropDownClosedEventArgs(Form DropDown) => _dropDown = DropDown;
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#endregion
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#region Public Properties
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/// <summary>
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/// Gets the dropdown form which is being closed.
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/// </summary>
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public Form DropDown => _dropDown;
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#endregion
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}
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/// <summary>
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/// Contains event information for DropDownValueChangedEventHandler.
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/// </summary>
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public class DropDownValueChangedEventArgs : EventArgs
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{
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#region Private Variable Declarations
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#endregion
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#region Constructor / Destructor
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/// <summary>
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/// Default Constructor
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/// </summary>
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public DropDownValueChangedEventArgs()
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{
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}
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/// <summary>
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/// Initialization with the control's value.
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/// </summary>
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/// <param name="Value"></param>
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public DropDownValueChangedEventArgs(object Value) => this.Value = Value;
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#endregion
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#region Public Properties
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/// <summary>
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/// Gets or sets the control's value.
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/// </summary>
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public object Value { get; set; } = null;
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#endregion
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}
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}
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