Struct.fieldName(Int32) Method
Definition
Important
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Returns the name of the item in the struct at the specified position.
public:
virtual System::String ^ fieldName(int _index);
public virtual string fieldName (int _index);
abstract member fieldName : int -> string
override this.fieldName : int -> string
Public Overridable Function fieldName (_index As Integer) As String
Parameters
- _index
- Int32
The position in the struct at which you want to retrieve the item name.
Returns
The name of the item at the position specified by index.
Remarks
If index is not found, an empty string is returned.
The following example creates a struct from a container and then uses the Struct.fields method to iterate through the contents of the container. The fieldName method is used to test the name of each item in the struct, and a specific action is run depending on the value of this name.
boolean unpack(container packed)
{
Struct unpackedProperties;
container structCon;
Counter i;
[#currentList,structCon] = packed;
unpackedProperties = Struct::create(structCon);
for (i=1;i<=unpackedProperties.fields();i++)
{
switch (unpackedProperties.fieldName(i))
{
case #closedOk:
break;
case #PropertyCaption:
if (! dialogForm
|| dialogForm
&& ! dialogForm.form().design().caption())
this.caption(unpackedProperties.valueIndex(i));
break;
case #dialogFormname:
// Do nothing
break;
case #PropertyAlwaysOnTop:
this.alwaysOnTop(unpackedProperties.valueIndex(i));
break;
case #PropertyWindowType:
this.windowType(unpackedProperties.valueIndex(i));
break;
case #defaultButton:
this.defaultButton(unpackedProperties.valueIndex(i));
break;
default:
throw error(strfmt(
"@SYS67326",unpackedProperties.fieldName(i),
classId2Name(classidget(this))));
}
}
return true;
}