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)?
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ArunPratap
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Jeeten Parmar
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Why dont you send the image as blob, and add it to the model so that it gets validated during the ModelState validation? – Hozikimaru Jan 30 '19 at 06:29
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@Hozikimaru Is it a better option than `FormData` for large images also? – Jeeten Parmar Jan 30 '19 at 17:25
1 Answers
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yes you need to extract the model from the form data first e.g.
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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Shaheryar.Akram
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Usama Kiyani
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Thanks. It worked. I am not sure if I can use `ActionFilterAttribute` in this scenario. – Jeeten Parmar Jan 30 '19 at 17:21
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i guess you can check this [post https://stackoverflow.com/questions/10673649/reading-form-data-in-actionfilterattribute] – Usama Kiyani Jan 31 '19 at 06:48