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Object Naming Conventions

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Follow this suggested format for naming objects.

PrefixName

Suggested prefixes for object names are listed in the following table.

Prefix Object Example
chk CheckBox 
chkReadOnly
col Collection 
colFormObjects
cbo ComboBox 
cboEnglish
cmd CommandButton 
cmdCancel
cmg CommandGroup 
cmgChoices
cnt Container 
cntMoverList
ctl Control 
ctlFileList
cad CursorAdapter 
cadInventory
<user-defined> Custom 
user-defined
dte DataEnvironment 
dteSalesForm
edt EditBox 
edtTextArea
frm Form 
frmFileOpen
frs FormSet 
frsDataEntry
grd Grid 
grdPrices
grc Column 
grcCurrentPrice
grh Header 
grhTotalInventory
hpl HyperLink 
hplHomeURL
img Image 
imgIcon
lbl Label 
lblHelpMessage
lin Line 
linVertical
lst ListBox 
lstPolicyCodes
olb OLEBoundControl 
olbObject1
ole OLE 
oleObject1
opt OptionButton 
optFrench
opg OptionGroup 
opgType
pag Page 
pagDataUpdate
pgf PageFrame 
pgfLeft
prj ProjectHook 
prjBuildAll
sep Separator 
sepToolSection1
shp Shape 
shpCircle
spn Spinner 
spnValues
txt TextBox 
txtGetText
tmr Timer 
tmrAlarm
tbr ToolBar 
tbrEditReport
xad XMLAdapter 
xadRemoteXMLData
xfd XMLField 
xfdPrices
xtb XMLTable 
xtbInventory

Remarks

Prefixes aren't required, but are recommended as good programming practice. Using a prefix does not dictate the contents of an object variable — in Visual FoxPro, prefixes are used only as a naming convention. For example, adding the prefix "cbo" does not check that the object referenced by the variable is a combo box, but it does help you remember the object referenced by the variable.

For more information, see Visual FoxPro Naming Rules.

See Also

Constant Naming Conventions | Table Field Naming Conventions | Variable Naming Conventions | Visual FoxPro Naming Rules | Window Naming Conventions