fwiw, this didn‘t work for me until I had this in the ajax call:
contentType: "application/json; charset=utf-8",using Asp.Net MVC 4.
标签：ajax head obj arc ati text app url fir
Unfortunately, Dictionary has problems with Model Binding in MVC. Read the full story here. Instead, create a custom model binder to get the Dictionary as a parameter for the controller action.
To solve your requirement, here is the working solution -
fwiw, this didn‘t work for me until I had this in the ajax call:
contentType: "application/json; charset=utf-8",using Asp.Net MVC 4.
解答3
There are a couple issues here. First, you need to make sure to bind your JSON object back to the model in the controller. This is done by changing
data: JSON.stringify(usersRoles),to
data: { model: JSON.stringify(usersRoles) },Secondly, you aren‘t binding types correctly with your jquery call. If you remove
contentType: "application/json; charset=utf-8",it will inherently bind back to a string.
All together, use the first ActionResult method and the following jquery ajax call:
jQuery.ajax({
type: "POST",
url: "@Url.Action("AddUser")",
dataType: "json",
data: { model: JSON.stringify(usersRoles) },
success: function (data) { alert(data); },
failure: function (errMsg) {
alert(errMsg);
}
});
Take a look at Phil Haack‘s post on model binding JSON data.
The problem is that the default model binder doesn‘t serialize JSON properly. You need some sort of ValueProvider OR you could write a custom model binder:
How to receive JSON as an MVC 5 action method parameter
标签：ajax head obj arc ati text app url fir
原文地址：https://www.cnblogs.com/chucklu/p/11650031.html
