SystemInformation::IsComboBoxAnimationEnabled Property
Gets a value indicating whether the slide-open effect for combo boxes is enabled.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Property Value
Type: System::Booleantrue if the slide-open effect for combo boxes is enabled; otherwise, false.
The IsComboBoxAnimationEnabled property indicates whether the slide-open effect for system control combo boxes is enabled.
When the slide-open effect for system control combo boxes is enabled, the drop down menu of a combo box slides into view when it is displayed, instead of being immediately fully drawn in view.
Note |
|---|
This property is supported only on Windows 98, Windows Millennium Edition, Windows 2000, Windows XP, and the Windows Server 2003 family. |
The following code example lists all properties of the SystemInformation class in a ListBox and displays the current value of the property in a TextBox when a list item selected.
#using <System.Windows.Forms.dll> #using <System.Drawing.dll> #using <System.dll> using namespace System; using namespace System::Collections; using namespace System::ComponentModel; using namespace System::Drawing; using namespace System::Reflection; using namespace System::Windows::Forms; public ref class SystemInfoBrowserForm: public System::Windows::Forms::Form { private: System::Windows::Forms::ListBox^ listBox1; System::Windows::Forms::TextBox^ textBox1; public: SystemInfoBrowserForm() { this->SuspendLayout(); InitForm(); // Add each property of the SystemInformation class to the list box. Type^ t = System::Windows::Forms::SystemInformation::typeid; array<PropertyInfo^>^pi = t->GetProperties(); for ( int i = 0; i < pi->Length; i++ ) listBox1->Items->Add( pi[ i ]->Name ); textBox1->Text = String::Format( "The SystemInformation class has {0} properties.\r\n", pi->Length ); // Configure the list item selected handler for the list box to invoke a // method that displays the value of each property. listBox1->SelectedIndexChanged += gcnew EventHandler( this, &SystemInfoBrowserForm::listBox1_SelectedIndexChanged ); this->ResumeLayout( false ); } private: void listBox1_SelectedIndexChanged( Object^ /*sender*/, EventArgs^ /*e*/ ) { // Return if no list item is selected. if ( listBox1->SelectedIndex == -1 ) return; // Get the property name from the list item. String^ propname = listBox1->Text; if ( propname->Equals( "PowerStatus" ) ) { // Cycle and display the values of each property of the PowerStatus property. textBox1->Text = String::Concat( textBox1->Text, "\r\nThe value of the PowerStatus property is:" ); Type^ t = System::Windows::Forms::PowerStatus::typeid; array<PropertyInfo^>^pi = t->GetProperties(); for ( int i = 0; i < pi->Length; i++ ) { Object^ propval = pi[ i ]->GetValue( SystemInformation::PowerStatus, nullptr ); textBox1->Text = String::Format( "{0}\r\n PowerStatus.{1} is: {2}", textBox1->Text, pi[ i ]->Name, propval ); } } else { // Display the value of the selected property of the SystemInformation type. Type^ t = System::Windows::Forms::SystemInformation::typeid; array<PropertyInfo^>^pi = t->GetProperties(); PropertyInfo^ prop = nullptr; for ( int i = 0; i < pi->Length; i++ ) if ( pi[ i ]->Name == propname ) { prop = pi[ i ]; break; } Object^ propval = prop->GetValue( nullptr, nullptr ); textBox1->Text = String::Format( "{0}\r\nThe value of the {1} property is: {2}", textBox1->Text, propname, propval ); } } void InitForm() { // Initialize the form settings this->listBox1 = gcnew System::Windows::Forms::ListBox; this->textBox1 = gcnew System::Windows::Forms::TextBox; this->listBox1->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Left | System::Windows::Forms::AnchorStyles::Right); this->listBox1->Location = System::Drawing::Point( 8, 16 ); this->listBox1->Size = System::Drawing::Size( 172, 496 ); this->listBox1->TabIndex = 0; this->textBox1->Anchor = (System::Windows::Forms::AnchorStyles)(System::Windows::Forms::AnchorStyles::Top | System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Right); this->textBox1->Location = System::Drawing::Point( 188, 16 ); this->textBox1->Multiline = true; this->textBox1->ScrollBars = System::Windows::Forms::ScrollBars::Vertical; this->textBox1->Size = System::Drawing::Size( 420, 496 ); this->textBox1->TabIndex = 1; this->ClientSize = System::Drawing::Size( 616, 525 ); this->Controls->Add( this->textBox1 ); this->Controls->Add( this->listBox1 ); this->Text = "Select a SystemInformation property to get the value of"; } }; [STAThread] int main() { Application::Run( gcnew SystemInfoBrowserForm ); }
Available since 2.0
