Set the error if the age is too young.ĪgeErrorProvider->SetError( this->ageUpDownPicker, "Age not old enough" ) ĪgeErrorProvider->SetError( this->ageUpDownPicker, "Age is too old" ) ĪgeErrorProvider->SetError( this->ageUpDownPicker, String.Empty ) Void ageUpDownPicker_Validated( Object^ /*sender*/, System::EventArgs^ /*e*/ ) NameErrorProvider->SetError( this->nameTextBox1, "Name is required." ) Set the error if the name is not valid. NameErrorProvider->SetError( this->nameTextBox1, String.Empty ) Clear the error, if any, in the error provider. Void nameTextBox1_Validated( Object^ /*sender*/, System::EventArgs^ /*e*/ ) NameErrorProvider->BlinkStyle = System::Windows::Forms::ErrorBlinkStyle::AlwaysBlink ĪgeErrorProvider = gcnew System::Windows::Forms::ErrorProvider ĪgeErrorProvider->SetIconAlignment( this->ageUpDownPicker, ErrorIconAlignment::MiddleRight ) ĪgeErrorProvider->SetIconPadding( this->ageUpDownPicker, 2 ) ĪgeErrorProvider->BlinkStyle = System::Windows::Forms::ErrorBlinkStyle::BlinkIfDifferentError įavoriteColorErrorProvider = gcnew System::Windows::Forms::ErrorProvider įavoriteColorErrorProvider->SetIconAlignment( this->favoriteColorComboBox, ErrorIconAlignment::MiddleRight ) įavoriteColorErrorProvider->SetIconPadding( this->favoriteColorComboBox, 2 ) įavoriteColorErrorProvider->BlinkRate = 1000 įavoriteColorErrorProvider->BlinkStyle = System::Windows::Forms::ErrorBlinkStyle::NeverBlink NameErrorProvider->SetIconPadding( this->nameTextBox1, 2 ) NameErrorProvider->SetIconAlignment( this->nameTextBox1, ErrorIconAlignment::MiddleRight ) NameErrorProvider = gcnew System::Windows::Forms::ErrorProvider Create and set the ErrorProvider for each data entry control. This->ageUpDownPicker->Validated += gcnew System::EventHandler( this, &Form1::ageUpDownPicker_Validated ) Īrray^temp1 = This->ageUpDownPicker->Maximum = System::Decimal( temp0 ) This->ageUpDownPicker->Location = System::Drawing::Point( 112, 64 ) This->nameTextBox1->Validated += gcnew System::EventHandler( this, &Form1::nameTextBox1_Validated ) This->nameTextBox1->Size = System::Drawing::Size( 120, 20 ) This->nameTextBox1->Location = System::Drawing::Point( 112, 32 ) This->label6->Text = "ErrorBlinkStyle::NeverBlink" This->label6->Location = System::Drawing::Point( 264, 96 ) This->label5->Text = "ErrorBlinkStyle::BlinkIfDifferentError" This->label5->Location = System::Drawing::Point( 264, 64 )
ErrorBlinkStyle::BlinkIfDifferentError Label This->label4->Text = "ErrorBlinkStyle::AlwaysBlink" This->label4->Location = System::Drawing::Point( 264, 32 ) This->label3->Location = System::Drawing::Point( 24, 96 ) This->label2->Location = System::Drawing::Point( 40, 64 ) This->label1->Location = System::Drawing::Point( 56, 32 ) This->label6 = gcnew System::Windows::Forms::Label This->label5 = gcnew System::Windows::Forms::Label This->label4 = gcnew System::Windows::Forms::Label This->label3 = gcnew System::Windows::Forms::Label This->favoriteColorComboBox = gcnew System::Windows::Forms::ComboBox This->ageUpDownPicker = gcnew System::Windows::Forms::NumericUpDown
This->label2 = gcnew System::Windows::Forms::Label This->label1 = gcnew System::Windows::Forms::Label This->nameTextBox1 = gcnew System::Windows::Forms::TextBox System::Windows::Forms::ErrorProvider^ favoriteColorErrorProvider System::Windows::Forms::ErrorProvider^ nameErrorProvider System::Windows::Forms::ErrorProvider^ ageErrorProvider System::Windows::Forms::ComboBox^ favoriteColorComboBox System::Windows::Forms::NumericUpDown^ ageUpDownPicker
Public ref class Form1: public System::Windows::Forms::Form The SetError method is called with or without appropriate error text during a control's Validated event, depending upon the content in the control. The example sets error icon options using the BlinkRate and BlinkStyle properties and the SetIconAlignment and SetIconPadding methods. The example creates a Form that contains a TextBox control, a NumericUpDown control, and a ComboBox control, each validating its content, and an ErrorProvider for each control.
#WINFORM ERRORPROVIDER CODE#
The following code example demonstrates using the ErrorProvider class to notify the user of a data entry error.
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