Class LookupDef

Namespace

Tripous.Data

Assembly

Tripous.Data.dll

Represents a lookup list.

Lookup list items may come from

• a SELECT statement, given in the SqlText property
• a SELECT statement constructed using the TableName
• a DataTable passed to LoadFrom(DataTable)() method
• an enum type, given in the EnumTypeName property
• a LookupSource derived class, given in the ClassName property
• as a last resort using the Name as a TableName

public class LookupDef : BaseDef, IDef, IJsonLoadable, INotifyPropertyChanged

Inheritance

object

BaseDef

LookupDef

Implements

IDef

IJsonLoadable

INotifyPropertyChanged

Inherited Members

BaseDef.fTitleKey

BaseDef.fName

BaseDef.NotifyPropertyChanged(string)

BaseDef.GetTitleKey()

BaseDef.ToString()

BaseDef.UpdateReferences()

BaseDef.JsonLoaded()

BaseDef.CreateNew()

BaseDef.CheckDescriptor()

BaseDef.Assign(IDef)

BaseDef.Clone()

BaseDef.Clear()

BaseDef.SplitTitleKeyToWordsWithPluralEnding()

BaseDef.Name

BaseDef.TitleKey

BaseDef.IsTitleKeyEmpty

BaseDef.Title

BaseDef.Tag

BaseDef.IsSerializable

BaseDef.PropertyChanged

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Extension Methods

TypeExtensions.InheritsFrom(object, Type)

Constructors

LookupDef()

Constructor

public LookupDef()

Properties

ClassName

The class name of a LookupSource derived class.

public string ClassName { get; set; }

Property Value

string

ConnectionName

The connection name used in getting an SqlStore in order to execute the SqlText SELECT statement.

public string ConnectionName { get; set; }

Property Value

string

DisplayField

The field used in getting the display value.

Used only when TableName or SqlText is defined or the list is loaded using Select(string) or LoadFrom(DataTable) a DataTable

public string DisplayField { get; set; }

Property Value

string

EnumTypeName

An enum type used in filling the list

public string EnumTypeName { get; set; }

Property Value

string

Form

The name of a form that displays the table.

public string Form { get; set; }

Property Value

string

SqlText

The SELECT statement

public string SqlText { get; set; }

Property Value

string

TableName

When not empty results in a SELECT statement like select * from TableName

public string TableName { get; set; }

Property Value

string

UseNullItem

When true then the first item in the list is a null item.

public bool UseNullItem { get; set; }

Property Value

bool

ValueField

The field used in getting the value.

Used only when TableName or SqlText is defined or the list is loaded using Select(string) or LoadFrom(DataTable) a DataTable

public string ValueField { get; set; }

Property Value

string

Methods

Create()

Creates and returns a LookupSource associated with this definition.

public LookupSource Create()

Returns

LookupSource