How to send JSON object to asp.net web service and process the data there?
Your web service method is expecting a string as a parameter. You are passing in a complex type. Define a matching type on the server and use it as the parameter type. You shouldn't need to create a object from the JSON string as you are.
Removed dangerous link here
Morgan
Updated on April 11, 2020Comments
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Morgan about 4 years
I am using the local database in web kit browsers and to get the data from the database I have the following code:
function synchronise() { myDB.transaction( function (transaction) { transaction.executeSql("SELECT * FROM Patients;", [], synchroniseHandler, errorHandler); } );
With I am trying to do now with the synchroniseHandler is to send all the rows to a web service and process the data there.
function synchroniseHandler(transaction, results) { for (var i = 0; i < results.rows.length; i++) { var row = results.rows.item(i); var patient = new Object(); patient.name = row['name'] patient.address = row['address'] patient.city = row['city'] patient.state = row['state'] patient.zip = row['zip'] patient.phone = row['phone'] $.ajax({ type: "POST", url: "MyService.asmx/synchronise", data: JSON.stringify(patient), contentType: "application/json; charset=utf-8", dataType: "json", success: function (msg) { alert("success"); }, error: function (xhr, status) { alert("fail" + status); } }); } }
However it always fails saying "error"
It's an ASP.NET 2.0 webb application but I am using JSON.NET and my webmethod to get the data is
[WebMethod] public void synchronise(string patient) { JObject o = JObject.Parse(patient); string name = (string)o["name"]; string address = (string)o["address"]; string city = (string)o["city"]; string state = (string)o["state"]; string zip = (string)o["zip"]; string phone = (string)o["phone"];
As it is now I am not using ajax but have JavaScript function that gets all rows and then insert them in a remote database when I click a button and it works. However, I am tryint to insert these automatically without a postback.
Any suggestions on how I can get this to work?
EDIT: Seems like the error comes from the web service:
Failed to load resource: the server responded with a status of 500 (Internal Server Error) System.InvalidOperationException: Request format is invalid: application/json; charset=UTF-8. at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters() at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()
edit2... added support for httppost in web.config and got rid of Failed to load resource: the server responded with a status of 500 (Internal Server Error)
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Samo over 13 yearsWhat exactly "fails saying 'error'"? Is that from your callback function (which should be returning "fail" + status and not "error" so I'm confused)? In other words, what is the error message and where does it come from?
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Morgan over 13 yearsIt's: error: function (xhr, status) { alert("fail: " + status); and the status message is just 'error'. I am confused too, first time I'm doing this heh.
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Erik Anderson about 7 yearsGoogle Chrome flagged encosia.com as dangerous: The site ahead contains malware - Attackers currently on encosia.com might attempt to install dangerous programs on your computer that steal or delete your information (for example, photos, passwords, messages, and credit cards).