FarPoint.Win.Spread
ComboDropDown Event
See Also  Example
FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FpSpread Class : ComboDropDown Event


Occurs when the user drops down a combo box in a cell.

Syntax

Visual Basic (Declaration) 
Public Event ComboDropDown() As EditorNotifyEventHandler
Visual Basic (Usage)Copy Code
Dim instance As FpSpread
Dim handler As EditorNotifyEventHandler
 
AddHandler instance.ComboDropDown, handler
C# 
public event EditorNotifyEventHandler ComboDropDown()

Event Data

The event handler receives an argument of type EditorNotifyEventArgs containing data related to this event. The following EditorNotifyEventArgs properties provide information specific to this event.

PropertyDescription
Column Gets the column index of the cell with the editor that raised the event.
EditingControl Gets the Control object that raises the event.
Row Gets the row index of the cell with the editor that raised the event.
View Gets the view that contains the cell with the editor that raised the event.

Example

This example raises several of the combo box related events when the user clicks on a combo box button and makes a selection from the list.
C#Copy Code
FarPoint.Win.Spread.CellType.ComboBoxCellType cb = new FarPoint.Win.Spread.CellType.ComboBoxCellType();
fpSpread1.ActiveSheet.Cells[0, 0].CellType = cb;

private void fpSpread1_ComboCloseUp(object sender, FarPoint.Win.Spread.EditorNotifyEventArgs e)
{
    ListBox1.Items.Add("ComboCloseUp event fired");
}

private void fpSpread1_ComboDropDown(object sender, FarPoint.Win.Spread.EditorNotifyEventArgs e)
{
    ListBox1.Items.Add("ComboDropDown event fired");
}

private void fpSpread1_ComboSelChange(object sender, FarPoint.Win.Spread.EditorNotifyEventArgs e)
{
    ListBox1.Items.Add("ComboSelChange event fired");
}
Visual BasicCopy Code
Dim cb As New FarPoint.Win.Spread.CellType.ComboBoxCellType()
FpSpread1.ActiveSheet.Cells(0, 0).CellType = cb

Private Sub FpSpread1_ComboCloseUp(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.EditorNotifyEventArgs) Handles FpSpread1.ComboCloseUp
     ListBox1.Items.Add("ComboCloseUp event fired")
End Sub

Private Sub FpSpread1_ComboDropDown(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.EditorNotifyEventArgs) Handles
FpSpread1.ComboDropDown
     ListBox1.Items.Add("ComboDropDown event fired")
End Sub

Private Sub FpSpread1_ComboSelChange(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.EditorNotifyEventArgs) Handles
FpSpread1.ComboSelChange
     ListBox1.Items.Add("ComboSelChange event fired")
End Sub

Remarks

This event is raised by the OnComboDropDown method when the user clicks the drop-down arrow or presses the Alt+down arrow keys in a combo box cell and the list portion of the combo box drops to display the list items.

Use this event to handle the display of the drop down list.

For more details on the individual event arguments, refer to EditorNotifyEventArgs members.

See Also