UnSelectedImageIndex Property

Gets or sets the index of the image that is shown on the editor area when user the does not select an item in the drop-down list.

Syntax

Visual Basic
C#

'Declaration
 
Public Property UnSelectedImageIndex As Integer

'Usage
 
Dim instance As GcComboBoxCellType
Dim value As Integer
 
instance.UnSelectedImageIndex = value
 
value = instance.UnSelectedImageIndex

public int UnSelectedImageIndex {get; set;}

Property Value

An System.Int32 value that indicates the image index.
The default is -1.

Remarks

When the SelectedItem is a null reference (Nothing in Visual Basic) and the TextBoxStyle property is TextBoxStyle.ImageOnly or TextBoxStyle.Both, an image is displayed in the edit area based on the index value.

Example

This example displays an image in the edit area if nothing is selected when the list is dropped down.

ImageList img = new ImageList();
img.Images.Add(Image.FromFile("C:\\Program Files (x86)\\GrapeCity\\rasp.png"));
img.Images.Add(Image.FromFile("C:\\Program Files (x86)\\GrapeCity\\vanilla.png"));
img.Images.Add(Image.FromFile("C:\\Program Files (x86)\\GrapeCity\\choco.png"));
img.Images.Add(Image.FromFile("C:\\Program Files (x86)\\GrapeCity\\banana.png"));

GrapeCity.Win.Spread.InputMan.CellType.GcComboBoxCellType gccombo = new GrapeCity.Win.Spread.InputMan.CellType.GcComboBoxCellType();
gccombo.DropDownStyle = ComboBoxStyle.DropDownList;
gccombo.Items.AddRange(new String[] { "Raspberry", "Vanilla", "Chocolate", "Banana" });
gccombo.Items[0].BackColor = Color.Fuchsia;
gccombo.Items[1].BackColor = Color.Ivory;
gccombo.Items[2].BackColor = Color.Chocolate;
gccombo.Items[3].BackColor = Color.LightYellow;
gccombo.ImageList = img;
gccombo.Items[0].Image = 0;
gccombo.Items[1].Image = 1;
gccombo.Items[2].Image = 2;
gccombo.Items[3].Image = 3;
gccombo.ShowListBoxImage = true;
gccombo.ImageAlign = HorizontalAlignment.Right;
gccombo.ListSelectedItemStyle.BackColor = Color.Bisque;
gccombo.ListSelectedItemStyle.ForeColor = Color.Black;
gccombo.UnSelectedImageIndex = 1;
gccombo.TextBoxStyle = GrapeCity.Win.Spread.InputMan.CellType.TextBoxStyle.Both;
fpSpread1.Sheets[0].Cells[1, 1].CellType = gccombo;
fpSpread1.Sheets[0].Columns[1].Width = 200;
fpSpread1.Sheets[0].Rows[1].Height = 40;

Visual Basic

Dim img As New ImageList()
img.Images.Add(Image.FromFile("C:\Program Files (x86)\GrapeCity\rasp.png"))
img.Images.Add(Image.FromFile("C:\Program Files (x86)\GrapeCity\vanilla.png"))
img.Images.Add(Image.FromFile("C:\Program Files (x86)\GrapeCity\choco.png"))
img.Images.Add(Image.FromFile("C:\Program Files (x86)\GrapeCity\banana.png"))

Dim gccombo As New GrapeCity.Win.Spread.InputMan.CellType.GcComboBoxCellType()
gccombo.DropDownStyle = ComboBoxStyle.DropDownList
gccombo.Items.AddRange(New String() {"Raspberry", "Vanilla", "Chocolate", "Banana"})
gccombo.Items(0).BackColor = Color.Fuchsia
gccombo.Items(1).BackColor = Color.Ivory
gccombo.Items(2).BackColor = Color.Chocolate
gccombo.Items(3).BackColor = Color.LightYellow
gccombo.ImageList = img
gccombo.Items(0).Image = 0
gccombo.Items(1).Image = 1
gccombo.Items(2).Image = 2
gccombo.Items(3).Image = 3
gccombo.ShowListBoxImage = True
gccombo.ImageAlign = HorizontalAlignment.Right
gccombo.ListSelectedItemStyle.BackColor = Color.Bisque
gccombo.ListSelectedItemStyle.ForeColor = Color.Black
gccombo.UnSelectedImageIndex = 1
gccombo.TextBoxStyle = GrapeCity.Win.Spread.InputMan.CellType.TextBoxStyle.Both
fpSpread1.Sheets(0).Cells(1, 1).CellType = gccombo
fpSpread1.Sheets(0).Columns(1).Width = 200
fpSpread1.Sheets(0).Rows(1).Height = 40

Reference

GcComboBoxCellType Class
GcComboBoxCellType Members