Check the type of a field value

To check the type of a field value from a model, first access the Metaclass property of the IModel object and use the IClass.GetField method for the metaclass to get the field. For the obtained field, use the Type property of the IField object to get the type name of the field.

public void GetFieldType(ICommandContext c, ICommandParams p) 
{ 
IModel model = c.App.Workspace.CurrentModel; 

//For a field named "SomeField" 
//Get the field from the metaclass 
IField someField = model.Metaclass.GetField("SomeField"); 

//Get the type name 
string type = someField.Type; 

//... 
} 

For primitive types

For primitive types such as strings and integers, you can get the type name as follows.

Type	Type name
String	String
Integer	Integer
Double	Double
Boolean	Boolean
Rich Text Edit Tool	RichText

For class types

For class types, you can get the class name. To get the type class as an IClass object, use the TypeClass property of the IField object.

public void GetFieldTypeClass(ICommandContext c, ICommandParams p) 
{ 
IModel model = c.App.Workspace.CurrentModel; 
IField someField = model.Metaclass.GetField("SomeField"); 

//Get the type class 
IClass type = someField.TypeClass; 

if (type == null) 
{ 
c.App.Window.UI.ShowMessageBox("Not a class type field."); 
} 

//... 
} 

Enumerations

For enumerations, you can get the enumeration name. To get the enumeration as an IEnum object, use the TypeEnum property of the IField object.

public void GetFieldTypeEnum(ICommandContext c, ICommandParams p) 
{ 
IModel model = c.App.Workspace.CurrentModel; 
IField someField = model.Metaclass.GetField("SomeField"); 

//Get the enumeration for the type 
IEnum type = someField.TypeEnum; 

if (type == null) 
{ 
c.App.Window.UI.ShowMessageBox("Not an enumeration field."); 
} 

//... 
}