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Index

L

Label class, 216–217, 239–247. See also Control class.
access keys to controls without captions, 241–242
aligning text, 240
AutoSize property, 239, 240
BackColor property, 239
BorderStyle property, 239
Click event, 241
DoubleClick event, 241
Font property, 240
Image property, 216
LinkLabel class, 216–217, 242–247
public properties, 239
ReadOnly property, 239
text alignment, 240
Text property, 216
TextAlign property, 239, 240
UseMnemonic property, 216, 239, 242
Label class (WebControl class), 664, 685–688. See also System.Web.UI.Control class; WebControl class.
BorderStyle property, 688
BorderWidth property, 688
creating, 686–688
Labels coding example, 686–688
Text property, 685, 686, 688
Label control, Web server controls, 608
LabelEdit property
ListView class, 451
TreeView class, 443
LabelImageList property, ListView class, 451
Labels coding example, 686–688. See also Label class (WebControl class).
<span> elements, 688
WebForm1.aspx, 686
WebForm1.aspx.vb, 686–687
LabelWrap property, ListView class, 451
LandscapeAngle property, PrintSettings class, 416
language. See CLR (Common Language Runtime); IL (Intermediate Language) .NET framework; Visual Basic language.
LargeChange property
scroll bars, 334, 342, 343–344
TrackBar class, 335, 359
LargeImageList property, ListView class, 455
LastNode property, TreeNode class, 445
late binding, 537–539, 559–560. See also binding; early binding; inheritance.
Display Sub procedure, 538–539
Layout event
Control class, 213
Form class, 160
LayoutMdi method
Form class, 159
MDI (Multiple Document Interface) forms, 189–190
Leave event, Control class, 213
Left Arrow key, SendKeys key codes, 204
Left property
Control class, 210
Form class, 158
Len function, TextBox class, 224
Length property, FileStream class, 590
libraries, class, 516–518
LIKE clause, SELECT statements, 857
LineJoin property, Pen class, 579
Lines property
RichTextBox class, 229
TextBox class, 220
LinkArea property, LinkLabel class, 242, 243
LinkBehavior property, LinkLabel class, 242
LinkButton class (WebControl class), 742–743, 762–765. See also System.Web.UI.Control class; WebControl class.
CausesValidation property, 763
Click event, 763
Command event, 763
CommandArgument property, 763
CommandName property, 763
LinkButtons coding example, 763–765
public events, 763
public properties, 763
Text property, 763
LinkButton control, Web server controls, 608
LinkButtons coding example, 763–765. See also LinkButton class (WebControl class).
Click event, 763
WebForm1.aspx, 763–764
WebForm1.aspx.vb, 764–765
LinkClicked event
LinkLabel class, 242, 243, 245
RichTextBox class, public events, 231
LinkColor property
DataGrid class, 914
LinkLabel class, 242, 243
LinkHoverColor property, DataGrid class, 915
LinkLabel class, 216–217, 242–247. See also Control class; Label class.
ActiveLinkColor property, 242, 243
Add method, 244–245
AddHandler method, 245
AddressOf operator, 245
Controls collection, 245
creating, 243–246
creating in code, 244–246
e.Link.LinkData.ToString method, 246–247
LinkArea property, 242, 243
LinkClicked event, 242, 243, 245
LinkColor property, 242, 243
linking to forms, 245–246
linking to Web, 247
Links collection, 244
public events, 242
public properties, 242
VisitedLinkColor property, 242, 243, 246
Links collection, LinkLabel class, 244
Links property, LinkLabel class, 242
LinkVisited property, LinkLabel class, 242
ListBox class, 289–291, 295–307. See also CheckedListBox class; Control class.
Add method, 298
adding items to, 297–299
AddRange method, 298
BeginUpdate method, 290, 296
binding controls to databases, 912
Clear method, 307
ClearSelected method, 296
Click event, 300–301
ColumnWidth property, 295
DisplayMember property, 295
DoubleClick event, 300–301
DrawMode property, 295
EndUpdate method, 290, 296
events and, 300–301
FindString method, 291, 296
FindStringExact method, 291, 296
GetItemHeight method, 296
GetSelected method, 296
HorizontalExtent property, 295
HorizontalScrollbar property, 295
IndexFromPoint method, 296
Insert method, 298
IntegralHeight property, 295
ItemHeight property, 295
Items collection, 290
Items property, 290, 291, 295, 297–298, 299
Items.Count value, 302–303
MultiColumn property, 290, 295, 304–305
MultiExtended option, 305
MultiSelect property, 303–304, 305–306
PreferredHeight property, 296
public events, 296
public methods, 296
public properties, 295–296
referring to items by index, 299
Remove method, 301–302
RemoveAt method, 301
removing items, 301–302
responding to events, 300–301
ScrollAlwaysVisible property, 290, 296
SelectedIndex property, 290, 296, 299, 303
SelectedIndexChanged event, 296, 299, 300, 306
SelectedIndices property, 291, 296, 303–304, 306
SelectedItem property, 290, 296, 299, 303
SelectedItems property, 291, 296, 303–304, 306
SelectionMode property, 291, 296, 305
SetSelected method, 296, 305–306
Sorted property, 296, 302
storing objects in, 322–325
Text property, 296, 303
ToString method, 303
ListBox class (WebControl class), 737–739, 749–756. See also ListControl class (WebControl class); System.Web.UI.Control class; WebControl class.
Add method, 753–754
AddItems coding example, 754–756
creating multiple-selection list boxes, 753
creating single-selection list boxes, 750–753
Items collection, 753
ListBoxes coding example, 750–753
public properties, 749
Rows property, 738, 749
Selected property, 753
SelectedIndex property, 750
SelectedIndexChanged event, 750, 753
SelectedItem property, 750
SelectionMode property, 738, 749, 750, 753
ToolTip property, 749
ListBox control, Web server controls, 608
ListBoxes coding example, 750–753. See also ListBox class (WebControl class).
WebForm1.aspx, 751
WebForm1.aspx.vb, 752–753
ListControl class (WebControl class), 699, 709–710. See also System.Web.UI.Control class; WebControl class.
AutoPostBack property, 710
CheckBoxList class, 699, 711–713
Items property, 710
ListBox class, 737–739, 749–756
public events, 710
public properties, 710
RadioButtonList class, 700, 719–722
SelectedIndex property, 710
SelectedIndexChanged event, 710
SelectedItem property, 710
ListItem class (WebControl class), 699, 710. See also System.Web.UI.Control class; WebControl class.
public properties, 710
Selected property, 710
Text property, 710
Value property, 710
ListItem Collection Editor, RadioButtons coding example, 720, 721
ListItems property, ListView class, 432
ListView class, 432–433, 451–459. See also Control class.
Activation property, 433, 451
Add method, 454
AfterLabelEdit event, 452
Alignment property, 451
AllowColumnReorder property, 451
ArrangeIcons method, 452
AutoArrange property, 451
BeforeLabelEdit event, 452
BeginUpdate method, 452
CheckBoxes property, 432, 451, 458–459
CheckedIndices property, 451
CheckedItems property, 451
Clear method, 452
ColumnClick event, 452, 458
Columns collection, 455
Columns property, 451
creating, 453–454
creating in code, 454–456
EndUpdate method, 452
EnsureVisible method, 452
event handling, 457–458
FocusedItem property, 451
FullRowSelect property, 451
GetItemAt method, 452
GridLines property, 451
HeaderStyle property, 451
HideSelection property, 451
HoverSelection property, 451
ImageList class, 454
Index property, 459
ItemActivate event, 452
ItemCheck event, 433, 452, 458
Items collection, 454
Items property, 451, 453
LabelEdit property, 451
LabelImageList property, 451
LabelWrap property, 451
LargeImageList property, 455
ListItems property, 432
ListViewItem class, 453
ListViewItem Collection Editor, 453, 454
MultiSelect property, 432, 452, 457
NewValue property, 458
public events, 452
public methods, 452
public properties, 451–452
Scrollable property, 452
SelectedIndexChanged event, 433, 452, 457
SelectedIndices property, 452, 457
SelectedItems property, 452, 457
SmallImageList property, 452, 455
Sorting property, 433, 452
TopItem property, 452
view modes, 432, 454, 456
View property, 432, 452, 456
ListView property, ListViewItem class, 453
ListViewItem class, 453. See also Control class; ListView class.
BeginEdit method, 453
Bounds property, 453
Checked property, 453
Collection Editor, 453, 454
EndEdit method, 453
EnsureVisible method, 453
Index property, 453
ListView property, 453
public methods, 453
public properties, 453
Selected property, 453
SubItems property, 453
Text property, 453
Literal class, 664, 689–691. See also System.Web.UI.Control class.
creating, 689–691
Literals coding example, 689–691
Text property, 689
Literals coding example, 689–691
WebForm1.aspx, 690
WebForm1.aspx.vb, 690–691
Load event
CheckBox class (WebControl class), 705
CheckBoxList class (WebControl class), 712
drawing 2D figures, 565
Form class, 160
Page class, 644
System.Web.UI.Control class, 660
System.Windows.Forms.UserControl class, 1036
LoadControl method
Page class, 644
TemplateControl class, 1040
LoadDataRow method, DataTable class, 952
LoadFile method, RichTextBox class, 231
LoadTemplate method, TemplateControl class, 1040
Locale property
DataSet class, 947
DataTable class, 952
Location property
Button class, 267
Control class, 210
Form class, 158, 172
LocationChanged event
Control class, 213
Form class, 160
locations
creating Web applications, 617
procedure delegates, 131
Lock method, FileStream class, 590
Log property
EventLog class, 1081
WindowsService coding example, 1059
LogDisplayName property, EventLog class, 1081
logical operators, SELECT statements, 857
Logical/Bitwise operators, 90. See also operators.
LogNameFromSourceName method, EventLog class, 1081
Long data type, described, 78
looping over all tables in dataset, 966
loops, 98–103
Do, 98–99
For, 99–100
For Each...Next, 101
overview, 98
While, 102
With statements and, 102–103
LostFocus event
Button class, 265
Control class, 213
Form class, 160
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