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DomainUpDown.DomainUpDownItemCollection Class

Encapsulates a collection of objects for use by the DomainUpDown class.

For a list of all members of this type, see DomainUpDown.DomainUpDownItemCollection Members.

System.Object
   System.Collections.ArrayList
      System.Windows.Forms.DomainUpDown.DomainUpDownItemCollection

[Visual Basic]
Public Class DomainUpDown.DomainUpDownItemCollection
   Inherits ArrayList
[C#]
public class DomainUpDown.DomainUpDownItemCollection : ArrayList
[C++]
public __gc class DomainUpDown.DomainUpDownItemCollection : public
   ArrayList
[JScript]
public class DomainUpDown.DomainUpDownItemCollection extends
   ArrayList

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Remarks

To create a collection of objects to display in the DomainUpDown control, you can add or remove the items individually by using the Add and Remove methods. The collection is accessed from the parent control, DomainUpDown, by the Items property.

Example

[Visual Basic, C#, C++] The following example creates and initializes a DomainUpDown control. The example allows you to set some of its properties and create a collection of strings for display in the up-down control. The code assumes that a TextBox, CheckBox and a Button have been instantiated on a form. The example also assumes that you have a member variable at the class level declared as a 32-bit signed integer named myCounter. You can enter a string in the text box and add it to the Items collection when the button is clicked. By clicking the check box, you can toggle the Sorted property and observe the difference in the collection of items in the up-down control.

[Visual Basic] 
Protected domainUpDown1 As DomainUpDown


Private Sub InitializeMyDomainUpDown()
    ' Create and initialize the DomainUpDown control.
    domainUpDown1 = New DomainUpDown()
    
    ' Add the DomainUpDown control to the form.
    Controls.Add(domainUpDown1)
End Sub 'InitializeMyDomainUpDown


Private Sub button1_Click(sender As Object, e As EventArgs)
    ' Add the text box contents and initial location in the collection
    ' to the DomainUpDown control.
    domainUpDown1.Items.Add((textBox1.Text.Trim() & " - " & myCounter))
    
    ' Increment the counter variable.
    myCounter = myCounter + 1
    
    ' Clear the TextBox.
    textBox1.Text = ""
End Sub 'button1_Click


Private Sub checkBox1_Click(sender As Object, e As EventArgs)
    ' If Sorted is set to true, set it to false; 
    ' otherwise set it to true.
    If domainUpDown1.Sorted Then
        domainUpDown1.Sorted = False
    Else
        domainUpDown1.Sorted = True
    End If
End Sub 'checkBox1_Click


Private Sub domainUpDown1_SelectedItemChanged _
    (sender As Object, e As EventArgs)
    
    ' Display the SelectedIndex and 
    ' SelectedItem property values in a MessageBox.
    MessageBox.Show(("SelectedIndex: " & domainUpDown1.SelectedIndex.ToString() & _
        ControlChars.Cr & "SelectedItem: " & domainUpDown1.SelectedItem.ToString()))
End Sub 'domainUpDown1_SelectedItemChanged

[C#] 
protected DomainUpDown domainUpDown1;

private void InitializeMyDomainUpDown()
 {
    // Create and initialize the DomainUpDown control.
    domainUpDown1 = new DomainUpDown();
    
    // Add the DomainUpDown control to the form.
    Controls.Add(domainUpDown1);
 }
 
 private void button1_Click(Object sender, 
                           EventArgs e)
 {   
    // Add the text box contents and initial location in the collection
    // to the DomainUpDown control.
    domainUpDown1.Items.Add((textBox1.Text.Trim()) + " - " + myCounter);
    
    // Increment the counter variable.
    myCounter = myCounter + 1;
 
    // Clear the TextBox.
    textBox1.Text = "";
 }
 
 private void checkBox1_Click(Object sender, 
                             EventArgs e)
 {
    // If Sorted is set to true, set it to false; 
    // otherwise set it to true.
    if (domainUpDown1.Sorted)
    {
       domainUpDown1.Sorted = false;
    }
    else
    {
       domainUpDown1.Sorted = true;
    }
 }
 
 private void domainUpDown1_SelectedItemChanged(Object sender, 
                                               EventArgs e)
 {
    // Display the SelectedIndex and 
    // SelectedItem property values in a MessageBox.
    MessageBox.Show("SelectedIndex: " + domainUpDown1.SelectedIndex.ToString() 
       + "\n" + "SelectedItem: " + domainUpDown1.SelectedItem.ToString());
 }


[C++] 
protected:
DomainUpDown* domainUpDown1;

private:
void InitializeMyDomainUpDown()
 {
    // Create and initialize the DomainUpDown control.
    domainUpDown1 = new DomainUpDown();
    
    // Add the DomainUpDown control to the form.
    Controls->Add(domainUpDown1);
 }
 
 void button1_Click(Object* /*sender*/, 
                           EventArgs* /*e*/)
 {   
    // Add the text box contents and initial location in the collection
    // to the DomainUpDown control.
    domainUpDown1->Items->Add(String::Concat( (textBox1->Text->Trim()), S" - ", __box(myCounter)));
    
    // Increment the counter variable.
    myCounter = myCounter + 1;
 
    // Clear the TextBox.
    textBox1->Text = S"";
 }
 
 void checkBox1_Click(Object* /*sender*/, 
                             EventArgs* /*e*/)
 {
    // If Sorted is set to true, set it to false; 
    // otherwise set it to true.
    domainUpDown1->Sorted = !domainUpDown1->Sorted;
 }
 
 void domainUpDown1_SelectedItemChanged(Object* /*sender*/, 
                                               EventArgs* /*e*/)
 {
    // Display the SelectedIndex and 
    // SelectedItem property values in a MessageBox.
    MessageBox::Show(String::Format( S"SelectedIndex: {0}\nSelectedItem: {1}",
       __box(domainUpDown1->SelectedIndex), domainUpDown1->SelectedItem ));
 }

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Namespace: System.Windows.Forms

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

Assembly: System.Windows.Forms (in System.Windows.Forms.dll)

See Also

DomainUpDown.DomainUpDownItemCollection Members | System.Windows.Forms Namespace | Items

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