User1622957740 posted
Instead of the dataset-- why don't you just return Xml?
Eh because using XML is pretty much a pain to use in JavaScript? <s> Wno wants to parse XML on the client side when you could instead get an object back instead?
As to the DataTable converter it's broken in Beta 2 - it's still in Beta 2 but it's returning a bogus object which appears to be an internal object. It is possible to use the converter and grab the JSON it generates but this will likely change in the future
so it's probably not a good idea to use.
Here's an example (Client Code):
function GetCustomerTable_Callback(Result)
{
var List = ListControl.get_element(); // retrieve raw DOM element
// *** This is a HACK workaround AJAX Beta 1 until Microsoft brings back a real
// *** DataTable Converter currently it contains a string property that has be eval'd
// *** String has trailing ( that must be trimmed off
var Text= Result.dataArray.substring(0,Result.dataArray.length -1);
var Table = eval( Text);
// *** Clear the list first
for (x=List.options.length-1; x > -1; x--)
{
List.remove(0);
}
for (x=0; x < Table.length; x++ )
{
var Row = Table[x]; // Mozilla needs to assign
var option = document.createElement("option");
option.text = Row.CompanyName;
option.value = Row.CustomerId;
if ( window.navigator.appName.toLowerCase().indexOf("microsoft") > -1)
List.add(option);
else
List.add(option, null);
}
}
On the server (WebService or PageMethod):
[WebMethod]
public DataTable GetCustomerTable()
{
busCustomer Customer = new busCustomer();
if (Customer.GetCustomerList() < 0)
return null;
DataTable dt = Customer.DataSet.Tables["TCustomerList"];
return dt;
}
You also need to register the DataTableConverter:
<microsoft.web>
<scripting>
<webServices>
<!-- Uncomment this line to customize maxJsonLength and add a custom converter -->
<jsonSerialization maxJsonLength="50000">
<converters>
<add name="DataTableConverter" type="Microsoft.Web.Preview.Script.Serialization.Converters.DataTableConverter"/>
</converters>
</jsonSerialization>
</webServices>
</scripting>
</microsoft.web>
+++ Rick ---
