return two values from webservice

Question

Is is possible to return two values from a WebService to jQuery.

I tried like

[WebMethod(EnableSession = true)]
public string testing(string testId)
{
    string data = string.Empty;
    string data1 = string.Empty;
    List<test1> datalist1 = new List<test1>();
    List<test> datalist = new List<test>();

    //coding
    data = jsonSerialize.Serialize(datalist1);
    data1 = jsonSerialize.Serialize(datalist);
    return [data,data1];
}

but its showing error....how can we return two values from webservice here.....

Answer 1

Another way is to create a custom data type that has the two return values you want:

[Serializable]
public sealed class MyData
{
    public string Data { get; set; }
    public string Data1 { get; set; }
}

...

[WebMethod(EnableSession = true)]
public MyData testing(string testId)
{
    string data = string.Empty;
    string data1 = string.Empty;
    List<test1> datalist1 = new List<test1>();
    List<test> datalist = new List<test>();

    //coding
    data = jsonSerialize.Serialize(datalist1);
    data1 = jsonSerialize.Serialize(datalist);
    return new MyData { Data = data, Data1 = data1 };
}

OR

[Serializable]
public sealed class MyData
{
    public List<test> Data { get; set; }
    public List<test1> Data1 { get; set; }
}

...

[WebMethod(EnableSession = true)]
public string testing(string testId)
{
    MyData data = new MyData();
    string alldata = string.Empty;
    List<test1> datalist1 = new List<test1>();
    List<test> datalist = new List<test>();

    //coding
    data.Data = datalist1;
    data.Data1 = datalist;
    alldata = jsonSerialize.Serialize(data);
    return alldata;
}