- #C sharp uniform blink errorprovider blink code#
- #C sharp uniform blink errorprovider blink download#
The assigned value is not one of the ErrorBlinkStyle values.
#C sharp uniform blink errorprovider blink code#
The following code example demonstrates using the ErrorProvider class to notify the user of a data entry error. 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. The example sets error icon options using the BlinkRate and BlinkStyle properties and the SetIconAlignment and SetIconPadding methods. 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 System::Windows::Forms::TextBox^ nameTextBox1 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. 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->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 The problem is the same with this basic overridden version.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. So thinking that perhaps the additional functionality we added was the cause of the problem we created a basic overidden version with nothing added and used that version: class OverrideErrorProvider : In the same conditions you see all 5 errors. In every GUI application, it is very likely that a user will enter some invalid data or perform some action that will make the state of a control invalid.
#C sharp uniform blink errorprovider blink download#
Next, we removed the overridden version of the ErrorProvider and used the stock version and Download source files - 9 Kb Download demo project - 23 Kb.
So we cause another ColumnChanged to see if the errors are gone and they are all 5 still there. PROBLEM: When we run the application and edit a field.the ColumnChanged event fires and we set the errors and verify that the DataSet shows those 5 errors.however, we only see 3 of the 5 errors. We also hooked up the ColumnChanged event and when it fires we put an error on every column of the one row we added: ds.DataTable1.SetColumnError("Field1", "error 1") ĭs.DataTable1.SetColumnError("Field2", "error 2") ĭs.DataTable1.SetColumnError("Field3", "error 3") ĭs.DataTable1.SetColumnError("Field4", "error 4") ĭs.DataTable1.SetColumnError("Field5", "error 5") Then inside the Form_Load event we set the ContainerControl: = this Then set the DataSource of the Overriden ErrorProvider to the same BindingSource // as the controls: = bs } We then bound those controls to their respective fields inside the Form's constructor as such: DataSet1 ds = new DataSet1() ĭs.DataTable1.AddDataTable1Row("1", "2", "3", "4", "5") We then created a basic WinForm and added 5 text box controls. We created a simple Typed DataSet with 5 fields all strings.
We need to override the ErrorProvider for a specific reason (not relevant it turns out to the problem).
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