Chapter 8 Implementing Data - Bound Controls

Chapter 8 Implementing Data-Bound Controls Chapter 8  Lesson 1: Creating a Data-Bound Form with the Data Sources Wizard  Lesson 2: Implementing Data-Bound Controls  Lesson 3: Working with the DataGridView Lesson 1: Creating a Data-Bound Form with the Data Sources Wizard  What is Data-Bound controls? – Bound and Un-Bound mode – Data-bound controls are WinForms controls those can easily bind with data components: DataGrid, ListBox, and a ComboBox – have properties, which you can set as a data component and theyre ready to present your data in WinForms: DataSource,DisplayMember, DataMember. Dataset (Rows) ID, Name… Dataset (Rows) Dataset (Rows) Dataset (Rows) Dataset (Rows) Position??? Lesson 1: Creating a Data-Bound Form with the Data Sources Wizard  DEMO – Creating a Data-Bound Windows Form – Ex p411 BinDingSource  Track record position – MoveNext, MovePrevious…  Change data in datasource – Add, Delete, EndEdit Dataset (Rows) ID, Name… Dataset (Rows) Dataset (Rows) Dataset (Rows) Dataset (Rows) BindinhSource Lesson 2: Implementing Data-Bound Controls  Binding Controls to Data – Simple data binding: displaying a single element  BindingSource productsBindingSource = New BindingSource(NorthwindDataSet1, “Products");  TextBox1.DataBindings.Add("Text", productsBindingSource, "ProductName"); Lesson 2: Implementing Data-Bound Controls  Binding Controls to Data – Complex data binding: binding a control to more than one source of data  BindingSource customersBindingSource=New BindingSource(NorthwindDataSet1, "Customers");  DataGridView1.DataSource = customersBindingSource; – Or  DataGridView1.DataSource = NorthwindDataSet1;  DataGridView1.DataMember = "Customers“; Lesson 2: Implementing Data-Bound Controls  Navigating Records in a DataSet – use a BindingNavigator component. – Assign the BindingNavigator.BindingSource property to BindingSource component Lesson 3: Binding with Listbox/Combobox  Using unBound-mode – Add items manually  Using bound-mode – Single table – Two tables  Core properties – Datasource – DataMember – Displaymember – ValueMember  SeletectedValue – BindingSource – Example Lesson 3: Binding with Listbox/Combobox  Binding with single table – DataSource – DisplayMember – ValueMember  Return value: – SelectedValue Text [...]... Listbox/Combobox Binding with 2 tables – – – DataSource DisplayMember ValueMember Binding with – SelectedValue Lesson 3: Working with the DataGridView Configuring DataGridView Columns Lesson 3: Working with the DataGridView Adding Columns to a DataGridView – Wizard (design time) Adding Columns to a DataGridView (p4 28) – – – – – Dim ProductNameColumn As New DataGridViewTextBoxColumn ProductNameColumn.Name... System.Type.GetType("System.String") DataGridView1.Columns.Add(ProductNameColumn) Lesson 3: Working with the DataGridView Determining the Clicked Cell in DataGridView – use the DataGridView.CurrentCell property Dim CurrentCellValue As String CurrentCellValue = CustomersDataGridView.CurrentCell.Value.ToString Lesson 3: Working with the DataGridView ErrorText proerty of row and cell in row Validating Input in the DataGridView... and cell in row Validating Input in the DataGridView – handle the DataGridView CellValidating event and cancel the edit if the value fails validation (is raised when a cell loses focus.) Lesson 3: Working with the DataGridView Format a DataGridView Using Styles – – DefaultCellStyle AlternatingRowsDefaultCellStyle Lab: Working with the DataGridView – Page 431 . Chapter 8 Implementing Data-Bound Controls Chapter 8  Lesson 1: Creating a Data-Bound Form with the Data Sources Wizard  Lesson 2: Implementing Data-Bound Controls  Lesson. Data-Bound Form with the Data Sources Wizard  What is Data-Bound controls? – Bound and Un-Bound mode – Data-bound controls are WinForms controls those can easily bind with data components: DataGrid,. (Rows) Dataset (Rows) Dataset (Rows) BindinhSource Lesson 2: Implementing Data-Bound Controls  Binding Controls to Data – Simple data binding: displaying a single element  BindingSource productsBindingSource