Syntax
| Visual Basic (Declaration) | |
|---|---|
Public Event Expand As ExpandEventHandler | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
Dim instance As FpSpread Dim handler As ExpandEventHandler AddHandler instance.Expand, handler | |
| C# | |
|---|---|
public event ExpandEventHandler Expand | |
Event Data
The event handler receives an argument of type ExpandEventArgs containing data related to this event. The following ExpandEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| Cancel (Inherited from System.ComponentModel.CancelEventArgs) | |
| Expand | Gets whether the row is going to be expanded. |
| Row | Gets the row to expand or collapse. |
| View | Gets the view that contains the row to expand or collapse. |
Remarks
This event is raised by the OnExpand method when a row is expanded or collapsed.
For more details on the individual event arguments, refer to ExpandEventArgs members.
Example
This example raises the Expand event when a row is expanded or collapsed.
| C# | Copy Code |
|---|---|
System.Data.DataSet ds = new System.Data.DataSet(); DataTable name; DataTable city; name = ds.Tables.Add("Customers"); name.Columns.AddRange(new DataColumn[] {new DataColumn("LastName", typeof(string)), new DataColumn("FirstName", typeof(string)), new DataColumn("ID", typeof(Int32))}); name.Rows.Add(new object[] {"Fielding", "William", 0}); name.Rows.Add(new object[] {"Williams", "Arthur", 1}); name.Rows.Add(new object[] {"Zuchini", "Theodore", 2}); city = ds.Tables.Add("City/State"); city.Columns.AddRange(new DataColumn[] {new DataColumn("City", typeof(string)), new DataColumn("Owner", typeof(Int32)), new DataColumn("State", typeof(string))}); city.Rows.Add(new object[] {"Atlanta", 0, "Georgia"}); city.Rows.Add(new object[] {"Boston", 1, "Mass."}); city.Rows.Add(new object[] {"Tampa", 2, "Fla."}); ds.Relations.Add("City/State", name.Columns["ID"], city.Columns["Owner"]); fpSpread1.DataSource = ds; fpSpread1.DataMember = "Customers"; Label1.Text = "Click on one of the + next to a row to fire the event"; private void fpSpread1_Expand(object sender, FarPoint.Win.Spread.ExpandEventArgs e) { ListBox1.Items.Add("Expand event fired!"); } | |
| Visual Basic | Copy Code |
|---|---|
Dim ds As New System.Data.DataSet() Dim name As DataTable Dim city As DataTable name = ds.Tables.Add("Customers") name.Columns.AddRange(New DataColumn() {New DataColumn("LastName", Type.GetType("System.String")), New DataColumn("FirstName", Type.GetType("System.String")), New DataColumn("ID", Type.GetType("System.Int32"))}) name.Rows.Add(New Object() {"Fielding", "William", 0}) name.Rows.Add(New Object() {"Williams", "Arthur", 1}) name.Rows.Add(New Object() {"Zuchini", "Theodore", 2}) city = ds.Tables.Add("City/State") city.Columns.AddRange(New DataColumn() {New DataColumn("City", Type.GetType("System.String")), New DataColumn("Owner", Type.GetType("System.Int32")), New DataColumn("State", Type.GetType("System.String"))}) city.Rows.Add(New Object() {"Atlanta", 0, "Georgia"}) city.Rows.Add(New Object() {"Boston", 1, "Mass."}) city.Rows.Add(New Object() {"Tampa", 2, "Fla."}) ds.Relations.Add("City/State", name.Columns("ID"), city.Columns("Owner")) FpSpread1.DataSource = ds FpSpread1.DataMember = "Customers" Label1.Text = "Click on one of the + next to a row to fire the event" Private Sub FpSpread1_Expand(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.ExpandEventArgs) Handles FpSpread1.Expand ListBox1.Items.Add("Expand event fired!") End Sub | |
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2