BindingSource.Add(Object) Method

public:
 virtual int Add(System::Object ^ value);

public virtual int Add(object value);

public virtual int Add(object? value);

abstract member Add : obj -> int
override this.Add : obj -> int

Public Overridable Function Add (value As Object) As Integer

Parameters

Returns

The zero-based index at which value was added to the underlying list represented by the List property.

Implements

Exceptions

Examples

The following code example how to use the Add method. To run this example, paste the code into a Windows Form, and call the PopulateBindingSourceWithFonts method from the form's constructor.

 public BindingSource bindingSource1 = new BindingSource();
 TextBox box1 = new TextBox();

 private void PopulateBindingSourceWithFonts()
 {
 bindingSource1.CurrentChanged += new EventHandler(bindingSource1_CurrentChanged);
 bindingSource1.Add(new Font(FontFamily.Families[2], 8.0F));
 bindingSource1.Add(new Font(FontFamily.Families[4], 9.0F));
 bindingSource1.Add(new Font(FontFamily.Families[6], 10.0F));
 bindingSource1.Add(new Font(FontFamily.Families[8], 11.0F));
 bindingSource1.Add(new Font(FontFamily.Families[10], 12.0F));
 DataGridView view1 = new DataGridView();
 view1.DataSource = bindingSource1;
 view1.AutoGenerateColumns = true;
 view1.Dock = DockStyle.Top;
 this.Controls.Add(view1);
 box1.Dock = DockStyle.Bottom;
 box1.Text = "Sample Text";
 this.Controls.Add(box1);
 box1.DataBindings.Add("Text", bindingSource1, "Name");
 view1.Columns[7].DisplayIndex = 0;
 }

 void bindingSource1_CurrentChanged(object sender, EventArgs e)
 {
 box1.Font = (Font)bindingSource1.Current;
 }

 Private WithEvents bindingSource1 As New BindingSource()
 Private box1 As New TextBox()

 
 Private Sub PopulateBindingSourceWithFonts()
 
 bindingSource1.Add(New Font(FontFamily.Families(2), 8.0F))
 bindingSource1.Add(New Font(FontFamily.Families(4), 9.0F))
 bindingSource1.Add(New Font(FontFamily.Families(6), 10.0F))
 bindingSource1.Add(New Font(FontFamily.Families(8), 11.0F))
 bindingSource1.Add(New Font(FontFamily.Families(10), 12.0F))
 Dim view1 As New DataGridView()
 view1.DataSource = bindingSource1
 view1.AutoGenerateColumns = True
 view1.Dock = DockStyle.Top
 Me.Controls.Add(view1)
 box1.Dock = DockStyle.Bottom
 box1.Text = "Sample Text"
 Me.Controls.Add(box1)
 view1.Columns("Name").DisplayIndex = 0
 box1.DataBindings.Add("Text", bindingSource1, "Name")
 
 End Sub
 
 Sub bindingSource1_CurrentChanged(ByVal sender As Object, ByVal e As EventArgs) _
 Handles bindingSource1.CurrentChanged
 box1.Font = CType(bindingSource1.Current, Font)
 End Sub

Remarks

The Add method refers the call to the underlying list's Add method.

The internal list must contain homogenous types. If the DataSource property has not already been set, then the first object added to the list defines the type for the list.

This method raises the ListChanged event.

See also

• List
• Position
• AddNew()
• Remove(Object)
• RemoveCurrent()
• Insert(Int32, Object)