Error'System.Windows.Controls.DataGrid' does not contain a definition for 'Rows' and no extension method 'Rows' accepting a first argument of type 'System.Windows.Controls.DataGrid' could be found (are you missing a using directive or an assembly reference?)
also i cannot access SelectedRow property ... same error happens as above mention .
am i really missing any directives or something else ?
System.Windows.DataGrid : You can access items by DaaGrid.Items and then Casting it to specific type what u want. you will get DataGrid.SelectedItem Instead of DataGrid.SelectedRow
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I'm using fluent assertions and I have this test:
result.Should().NotBeNull();
result.Link.Should().Equals("https://someinvoiceurl.com");
which works fine but when I try this
result.Should().NotBeNull().Which.Link.Equals("https://someinvoiceurl.com");
I got this error
'AndConstraint<ObjectAssertions>' does not contain a definition for 'Which' and no accessible extension method 'Which' accepting a first argument of type 'AndConstraint<ObjectAssertions>' could be found (are you missing a using directive or an assembly reference?)
What I'm doing wrong?
The problem here is that .NotBeNull() is not generic (it is an extension on ObjectAssertions rather than GenericObjectAssertions), so it can't chain the type information to later calls.
I think this is a flaw in the library design, personally, but it is easily worked around by substituting .NotBeNull() with .BeOfType<T>() as so:
result.Should().BeOfType<ThingWithLink>() // assertion fails if `result` is null
.Which.Link.Should().Be("https://someinvoiceurl.com");
Of course, if you assert on your ThingWithLink type a lot, it could be worth writing a custom assertion so that you can be "more fluent":
result.Should().BeOfType<ThingWithLink>()
.And.HaveLink("https://someinvoiceurl.com");
If you need something more ad-hoc, you can always just use .BeEquivalentTo() to do structural comparison:
result.Should().NotBeNull()
.And.BeEquivalentTo(new { Link = "https://someinvoiceurl.com" }); // ignores all members on `result` except for `result.Link`
I have an xunit test using FA 4.19.3. I have recently upgraded to 5.3.0 without too many issues, except for some Object graph comparisons.
Old test:
var result = await MyClass.GetResultAsync();
result.ShouldBeEquivalentTo(new
{
StatusCode = 200,
Exception = (Exception)null
}, options => options.Excluding(o => o.Context));
But because the expectation is an anonymous method the Excluding errors with:
'IMemberInfo' does not contain a definition for 'Context' and no
extension method 'Context' accepting a first argument of type
'IMemberInfo' could be found (are you missing a using directive or an
assembly reference?)
I even tried defining the generic:
result.Should().BeEquivalentTo<MyResult>(
but this did not help.
How can I continue to use the anon method as I have many tests using this method.
Actually, we introduced some pretty big breaking changes in 5.0 just to make it possible to compare against an anonymous type. The Excluding method is there to exclude properties from the expectation. Since your expectation doesn't have an Context object, FA will complain about that. Check out https://www.continuousimprover.com/2018/02/fluent-assertions-50-best-unit-test.html#redefining-equivalency
I have some bindings warning that I can't solve:
System.Windows.Data Information: 10 : Cannot retrieve value using the
binding and no valid fallback value exists; using default instead.
BindingExpression:Path=AddNewObjectCommand; DataItem=null; target
element is 'ButtonWithIcon' (Name='uc'); target property is
'ButtonCommand' (type 'ICommand')
My understanding is that I should use a fallback value. This works with simple object types, however don't know how to handle this for complex objects like lists, or in that case commands.
Here is what I have tried, with no luck:
<controls:ButtonWithIcon ButtonCommand="{Binding CancelCommand, FallbackValue={x:Null}}" />
Would you have any thought on this?
Thank you in advance!
Is there a way I can get a attribute set in ServletContext in EL so that it ends up as a JavaScript variable?
I am setting it as
context.setAttribute("testing.port", "9000");
I tried retrieving it like
alert("port" +'${testing.port}');
I am just getting a blank.
The problem is the period (.) in the key name. EL interprets the period as a call to an accessor method named getPort1 on whatever object testing references. Fetch the value from the appropriate implicit object:
${applicationScope['testing.port']}
or just use a different key:
${testingPort}
1Yes, this is a simplification of what really happens. It may also look for a predicate getter named isPort, or try Map#get("port").
As you seen in this picture below, for some reason my DirectCast wont except ANYTHING for the second argument. It says it requires a type, but, it won't take any object at all!
Thanks for any help! I'm using VB.net so all .net answers are acceptable :)
EDIT
Ok, so apparently I'm not giving it the right kind of type. Could somebody please clarify this? Assuming the type it needs to cast to is gridElement, what should I replace objType with?
DirectCast requires an object prototype (i.e. just giving it the intended class name) rather than a System.Type descriptor object. To cast an object using a System.Type, you will want to utilize CTypeDynamic():
Return CTypeDynamic(createElementByIdAndLayer.MemberwiseClone(), objType)
The error is essentially telling you a class with the type name "objType" does not exist.
Its expecting a "Type", not a "Type Object".
What is the return value of the function?