asked on

fluent c# quesion

I've got this html helper control which has a fluent api which has a Validate(expression,message,severity) bit to the builder, but it doesn't take a Action<> type param, but you can string multip params together, e.g.:

       editor.NumericBox()
            .Validate("Include = true and Quantity = 0",
                T("Must be geater 0."))
 
            .Validate("Include = true and Quantity > Total",
                T("Too many."),
                ValidationSeverity.Error);

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my problem is that I have a Validations collection with a variable number of validators in, what syntax do I need to append an indeterminate number of validators on?

Bob Learned

I am reading this question like you need to add a new method that takes the collection as an argument. If I am wrong, please explain what you mean in a little more detail.

Silas2

ASKER

This is in razor markup, the fluent api has a procedure Validatate(msg,sev) for this control, so I can do .Validate("onemsg").Validatet("2ndmsg").Validate("etc")

But I wanna do
foreach(var validation in Model.Validations)
{
control.Validate(validation.msg)
}
which I could if the fluent api took a validationbuilder Action<> method, like:
Columns=>{
foreach(var col in model.Columns)

}
if you get what I mean.....

Bob Learned

That could be something like this:

editor.NumericBox()
        .ValidateAll(Model.Validations)

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Silas2

ASKER

so i'll have to modify the api?
I thought there might be a snappy syntax which would allow me to do it as is...

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Bob Learned

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Silas2

ASKER

I think you've said enough, i'll go back to the guy how does these api's and see if he'll modify it for me..otherwise i'll have to hard code,
"if one:
if two :
if three:

Bob Learned

Is the API in the same assembly as your code?

Silas2

ASKER

I've got the source code but its in a different assembly.

Bob Learned

Sorry, I meant same solution...

If you have the API project in the same solution, you should be able to add a static class for extension methods.

Here is an example, with a wild guess at your code, to show the realm of possibilities:

public static class ExtensionMethods
{

     public static ValidationBuilder ValidateAll(this ValidationBuilder builder, List<Validator> validatorList)
     {
           validatorList.ForEach(x => x.Validate(builder.Control));
           return builder;
     }
}

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Silas2

ASKER

Thanks for that, good point.