Validate Json String against Model asp.net core api

Question

I need to send Model data along with Image so I am using FormData . As we can't pass model directly, I am using JSON.stringify .

How do I validate this Json string against Model (Same as we do ModelState validation)?

Answer 1

yes you need to extract the model from the form data first eg

var request = HttpContext.Current.Request;
var model = new yourViewModel();
model.field1 = request.Form["field1"];
model.field2 = request.Form["field2"];
model.Document = request.Files["Document"];

ModelState.Clear(); 
this.Validate(model); 
if (ModelState.IsValid) {

}

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