// <Snippet1>
protected void BindControls()
{
/* Create two Binding objects for the first two TextBox
controls. The data-bound property for both controls
is the Text property. The data source is a DataSet
(ds). The data member is specified by a navigation
path in the form : TableName.ColumnName. */
textBox1.DataBindings.Add(new Binding
("Text", ds, "customers.custName"));
textBox2.DataBindings.Add(new Binding
("Text", ds, "customers.custID"));
/* Bind the DateTimePicker control by adding a new Binding.
The data member of the DateTimePicker is specified by a
navigation path in the form: TableName.RelationName.ColumnName. */
DateTimePicker1.DataBindings.Add(new
Binding("Value", ds, "customers.CustToOrders.OrderDate"));
/* Create a new Binding using the DataSet and a
navigation path(TableName.RelationName.ColumnName).
Add event delegates for the Parse and Format events to
the Binding object, and add the object to the third
TextBox control's BindingsCollection. The delegates
must be added before adding the Binding to the
collection; otherwise, no formatting occurs until
the Current object of the BindingManagerBase for
the data source changes. */
Binding b = new Binding
("Text", ds, "customers.custToOrders.OrderAmount");
b.Parse += new ConvertEventHandler(CurrencyStringToDecimal);
b.Format += new ConvertEventHandler(DecimalToCurrencyString);
textBox3.DataBindings.Add(b);
/*Bind the fourth TextBox to the Value of the
DateTimePicker control. This demonstrates how one control
can be bound to another.*/
textBox4.DataBindings.Add("Text", DateTimePicker1,"Value");
BindingManagerBase bmText = this.BindingContext[
DateTimePicker1];
/* Print the Type of the BindingManagerBase, which is
a PropertyManager because the data source
returns only a single property value. */
Console.WriteLine(bmText.GetType().ToString());
// Print the count of managed objects, which is 1.
Console.WriteLine(bmText.Count);
// Get the BindingManagerBase for the Customers table.
bmCustomers = this.BindingContext [ds, "Customers"];
/* Print the Type and count of the BindingManagerBase.
Because the data source inherits from IBindingList,
it is a RelatedCurrencyManager (derived from CurrencyManager). */
Console.WriteLine(bmCustomers.GetType().ToString());
Console.WriteLine(bmCustomers.Count);
/* Get the BindingManagerBase for the Orders of the current
customer using a navigation path: TableName.RelationName. */
bmOrders = this.BindingContext[ds, "customers.CustToOrders"];
}
protected void BindControls()
{
/* Create two Binding objects for the first two TextBox controls.
* The data-bound property for both controls is the Text property.
* The data source is a DataSet (ds).
* The data member is the navigation path: TableName.ColumnName. */
Binding b1 = new Binding("Text", _dataset, "customers.CompanyName");
textBox1.DataBindings.Add(b1);
Binding b2 = new Binding("Text", _dataset, "customers.CustomerID");
textBox2.DataBindings.Add(b2);
// Bind the DateTimePicker control by adding a new Binding.
// The data member of the DateTimePicker is a navigation path: TableName.RelationName.ColumnName.
Binding b3 = new Binding("Value", _dataset, "customers.CustToOrders.OrderDate");
dateTimePicker1.DataBindings.Add(b3);
//Create a new Binding using the DataSet and a navigation path(TableName.RelationName.ColumnName).
//Add event delegates for the Parse and Format events to the Binding object, and add the object to the
//third TextBox control's BindingsCollection.
//The delegates must be added before adding the Binding to the collection; otherwise, no formatting
//occurs until the Current object of the BindingManagerBase for the data source changes.
Binding b4 = new Binding("Text", _dataset, "customers.custToOrder Details.Quantity");
b4.Parse += B4_Parse;
b4.Format += B4_Format;
textBox3.DataBindings.Add(b4);
//Bind the fourth TextBox to the Value of the DateTimePicker control.
//This demonstates how one control can be data-bound to another.
textBox4.DataBindings.Add("Text", dateTimePicker1, "Value");
// Get the BindingManagerBase for the textBox4 Binding.
BindingManagerBase bmText = this.BindingContext
[dateTimePicker1];
// Print the Type of the BindingManagerBase, which is a PropertyManager because the data source
//returns only a single property value.
Console.WriteLine(bmText.GetType().ToString());
// Print the count of managed objects, which is one.
Console.WriteLine(bmText.Count);
// Get the BindingManagerBase for the Customers table.
var bmCustomers = this.BindingContext[_dataset, "Customers"];
// Print the Type and count of the BindingManagerBase.
//Because the data source inherits from IBindingList,it is a RelatedCurrencyManager (a derived class of
//CurrencyManager).
Console.WriteLine(bmCustomers.GetType().ToString());
Console.WriteLine(bmCustomers.Count);
/* Get the BindingManagerBase for the Orders of the current
* customer using a navigation path: TableName.RelationName. */
var bmOrders = this.BindingContext[_dataset, "customers.CustToOrders"];
}
public void TestMemberNoEvent()
{
TestClass2 test = new TestClass2();
BindingContext bc = new BindingContext();
BindingManagerBase bm = bc[test];
Assert.IsTrue(typeof(PropertyManager).IsAssignableFrom(bm.GetType()), "A1");
bm.CurrentChanged += new EventHandler(OnCurrentChanged);
currentChangedRaised = positionChangedRaised = false;
test.Property = 5;
Assert.IsFalse(currentChangedRaised, "A2");
Assert.IsFalse(positionChangedRaised, "A3");
}