File Dialog Filter Property

The filter string representing a collection of extensions allowed by the dialog.

Namespace: Autodesk.Revit.UI
Assembly: RevitAPIUI (in RevitAPIUI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public string Filter { get; set; }

Public Property Filter As String
	Get
	Set

public:
property String^ Filter {
	String^ get ();
	void set (String^ value);
}

member Filter : string with get, set

Property Value

String
The required format for this string is a collection of one or more filter labels (representing the text the user will see in the Files of Type pulldown) plus an associated file matching string separated by the '|' character. Some examples of valid filter strings:

"Revit Files (*.rvt)|*.rvt
"Revit Projects (*.rvt)|*.rvt|Revit Families (*.rfa)|*.rfa"
"All files|*.*"
"All Revit files (*.rvt, *.rfa, *.rte, *.rft)|*.rvt;*.rfa;*.rte;*.rft"

Exceptions

Exception	Condition
ArgumentException	When setting this property: The input filter string does not meet the minimal requirements for a valid filter string.
ArgumentNullException	When setting this property: A non-optional argument was null

Reference

FileDialog Class

Autodesk.Revit.UI Namespace