1 компонент

This commit is contained in:
ityurner02@mail.ru 2023-09-15 19:31:01 +04:00
parent a292f7107d
commit 96c441c7aa
6 changed files with 143 additions and 66 deletions

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@ -28,32 +28,32 @@
/// </summary> /// </summary>
private void InitializeComponent() private void InitializeComponent()
{ {
this.comboBox = new System.Windows.Forms.ComboBox(); this.dropDownList = new System.Windows.Forms.ComboBox();
this.SuspendLayout(); this.SuspendLayout();
// //
// comboBox // dropDownList
// //
this.comboBox.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; this.dropDownList.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox.FormattingEnabled = true; this.dropDownList.FormattingEnabled = true;
this.comboBox.Location = new System.Drawing.Point(3, 3); this.dropDownList.Location = new System.Drawing.Point(3, 3);
this.comboBox.Name = "comboBox"; this.dropDownList.Name = "dropDownList";
this.comboBox.Size = new System.Drawing.Size(187, 24); this.dropDownList.Size = new System.Drawing.Size(187, 24);
this.comboBox.TabIndex = 0; this.dropDownList.TabIndex = 0;
this.comboBox.SelectedValueChanged += new System.EventHandler(this.comboBox_SelectedValueChanged); this.dropDownList.SelectedValueChanged += new System.EventHandler(this.comboBox_SelectedValueChanged);
// //
// MyDropDownList // MyDropDownList
// //
this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F); this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Controls.Add(this.comboBox); this.Controls.Add(this.dropDownList);
this.Name = "MyDropDownList"; this.Name = "MyDropDownList";
this.Size = new System.Drawing.Size(800, 450); this.Size = new System.Drawing.Size(193, 30);
this.ResumeLayout(false); this.ResumeLayout(false);
this.PerformLayout();
} }
#endregion #endregion
private System.Windows.Forms.ComboBox comboBox; private System.Windows.Forms.ComboBox dropDownList;
} }
} }

View File

@ -23,54 +23,39 @@ namespace VisualComponentsLib
{ {
return; return;
} }
comboBox.Items.AddRange(Values.ToArray()); dropDownList.Items.AddRange(Values.ToArray());
} }
//Отдельный публичный метод отчистки списка.
public void Clear() public void Clear()
{ {
comboBox.Items.Clear(); dropDownList.Items.Clear();
} }
//публичное свойство(set, get) для установки и получения выбранного значения (возвращает пустую строку, если нет выбранного значения)
public string SelectedValue public string SelectedValue
{ {
get get
{ {
if (comboBox.Items.Count == 0) if (dropDownList.Items.Count == 0)
{ {
return ""; return "";
} }
if (comboBox.SelectedItem == null) if (dropDownList.SelectedItem == null)
{ {
return ""; return "";
} }
return comboBox.SelectedItem.ToString(); return dropDownList.SelectedItem.ToString();
} }
set set
{ {
if (comboBox.Items.Contains(value)) if (dropDownList.Items.Contains(value))
{ {
comboBox.SelectedItem = value; dropDownList.SelectedItem = value;
} }
} }
} }
private EventHandler _event;
public event EventHandler Event
{
add
{
_event += value;
}
remove
{
_event -= value;
}
}
//событие, вызываемое при смене значения в ComboBox.
private void comboBox_SelectedValueChanged(object sender, EventArgs e) private void comboBox_SelectedValueChanged(object sender, EventArgs e)
{ {
_event?.Invoke(sender, e); if (dropDownList.BackColor == Color.LightGreen) dropDownList.BackColor = Color.Tomato;
else dropDownList.BackColor = Color.LightGreen;
} }
} }
} }

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@ -28,12 +28,82 @@
/// </summary> /// </summary>
private void InitializeComponent() private void InitializeComponent()
{ {
this.components = new System.ComponentModel.Container(); dropDownList = new VisualComponentsLib.MyDropDownList();
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; buttonAdd = new Button();
this.ClientSize = new System.Drawing.Size(800, 450); buttonInfo = new Button();
this.Text = "Form1"; labelInfo = new Label();
buttonClear = new Button();
SuspendLayout();
//
// dropDownList
//
dropDownList.Location = new Point(3, 3);
dropDownList.Margin = new Padding(3, 4, 3, 4);
dropDownList.Name = "dropDownList";
dropDownList.SelectedValue = "";
dropDownList.Size = new Size(196, 36);
dropDownList.TabIndex = 0;
//
// buttonAdd
//
buttonAdd.Location = new Point(3, 46);
buttonAdd.Name = "buttonAdd";
buttonAdd.Size = new Size(92, 29);
buttonAdd.TabIndex = 1;
buttonAdd.Text = "добавить";
buttonAdd.UseVisualStyleBackColor = true;
buttonAdd.Click += buttonAdd_Click;
//
// buttonInfo
//
buttonInfo.Location = new Point(211, 46);
buttonInfo.Name = "buttonInfo";
buttonInfo.Size = new Size(94, 29);
buttonInfo.TabIndex = 2;
buttonInfo.Text = "показать";
buttonInfo.UseVisualStyleBackColor = true;
buttonInfo.Click += buttonInfo_Click;
//
// labelInfo
//
labelInfo.AutoSize = true;
labelInfo.Location = new Point(205, 9);
labelInfo.Name = "labelInfo";
labelInfo.Size = new Size(154, 20);
labelInfo.TabIndex = 3;
labelInfo.Text = "Выбранный элемент";
//
// buttonClear
//
buttonClear.Location = new Point(101, 46);
buttonClear.Name = "buttonClear";
buttonClear.Size = new Size(94, 29);
buttonClear.TabIndex = 4;
buttonClear.Text = "очистить";
buttonClear.UseVisualStyleBackColor = true;
buttonClear.Click += buttonClear_Click;
//
// Form1
//
AutoScaleDimensions = new SizeF(8F, 20F);
AutoScaleMode = AutoScaleMode.Font;
ClientSize = new Size(800, 450);
Controls.Add(dropDownList);
Controls.Add(buttonAdd);
Controls.Add(buttonInfo);
Controls.Add(labelInfo);
Controls.Add(buttonClear);
Name = "Form1";
Text = "Form1";
ResumeLayout(false);
PerformLayout();
} }
#endregion #endregion
private VisualComponentsLib.MyDropDownList dropDownList;
private Button buttonAdd;
private Button buttonInfo;
private Label labelInfo;
private Button buttonClear;
} }
} }

View File

@ -2,9 +2,27 @@ namespace WinForms
{ {
public partial class Form1 : Form public partial class Form1 : Form
{ {
List<string> list = new List<string>();
public Form1() public Form1()
{ {
list = new List<string>();
list.AddRange(new string[] { "õëåá", "ìîëîêî", "êîëáàñà" });
InitializeComponent(); InitializeComponent();
dropDownList.LoadValues(new List<string>() { "ñîê", "ÿáëîêî", "ëóê" });
}
private void buttonAdd_Click(object sender, EventArgs e)
{
dropDownList.LoadValues(list);
}
private void buttonInfo_Click(object sender, EventArgs e)
{
labelInfo.Text = dropDownList.SelectedValue;
}
private void buttonClear_Click(object sender, EventArgs e)
{
dropDownList.Clear();
} }
} }
} }

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@ -1,17 +1,17 @@
<?xml version="1.0" encoding="utf-8"?> <?xml version="1.0" encoding="utf-8"?>
<root> <root>
<!-- <!--
Microsoft ResX Schema Microsoft ResX Schema
Version 2.0 Version 2.0
The primary goals of this format is to allow a simple XML format The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes various data types are done through the TypeConverter classes
associated with the data types. associated with the data types.
Example: Example:
... ado.net/XML headers & schema ... ... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader> <resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader> <resheader name="version">2.0</resheader>
@ -26,36 +26,36 @@
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value> <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment> <comment>This is a comment</comment>
</data> </data>
There are any number of "resheader" rows that contain simple There are any number of "resheader" rows that contain simple
name/value pairs. name/value pairs.
Each data row contains a name, and value. The row also contains a Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture. text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the Classes that don't support this are serialized and stored with the
mimetype set. mimetype set.
The mimetype is used for serialized objects, and tells the The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly: extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below. read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64 mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding. : and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64 mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding. : and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64 mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter : using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding. : and then encoded with base64 encoding.
--> -->

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@ -8,4 +8,8 @@
<ImplicitUsings>enable</ImplicitUsings> <ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup> </PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\VisualComponentsLib\VisualComponentsLib.csproj" />
</ItemGroup>
</Project> </Project>