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
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