| public IsValid ( object value ) : bool | ||
| value | object | The value of the object to validate. |
| return | bool | |
public override bool IsValid(object value)
{
if (value == null)
{
return true;
}
string valueAsString = value as string;
if (valueAsString != null)
{
return ValidateExtension(valueAsString);
}
return false;
}
public void IsValidWithNoArgumentTests()
{
var attribute = new FileExtensionsAttribute();
Assert.IsTrue(attribute.IsValid(null)); // Optional values are always valid
Assert.IsTrue(attribute.IsValid("foo.png"));
Assert.IsTrue(attribute.IsValid("foo.jpeg"));
Assert.IsTrue(attribute.IsValid("foo.jpg"));
Assert.IsTrue(attribute.IsValid("foo.gif"));
Assert.IsTrue(attribute.IsValid(@"C:\Foo\bar.png"));
Assert.IsFalse(attribute.IsValid("foo"));
Assert.IsFalse(attribute.IsValid("foo.doc"));
Assert.IsFalse(attribute.IsValid("foo.txt"));
Assert.IsFalse(attribute.IsValid("foo.png.txt"));
}
