[CLOSED] HttpProxy sample with Method='GET' to load data for store

[inayath]

Hi,

Could you please provide sample for how to use HttpProxy with method='GET'.

All iam trying to do is on page load trying to load combobox using store, WebService method is been called from HttpProxy to load data in store, but the WebService method which is called to load data is accessing/using session which is not allowed if you method='POST' but if i change it to Method='GET' it throw "internal server error - status code 500".

Note im using coolite version 0.8.

Added this thread by mistake in place, could you please delete them?
http://forums.ext.net/showthread.php...ing-New-Topics
http://forums.ext.net/showthread.php...data-for-store

Thanks.

[Daniil]

Hi,

Here is the example for Ext.Net with Method="GET".

https://examples1.ext.net/#/GridPane.../ServiceUsing/

The same example for 0.8.X you can find in Coolite sources:

<SVN folder>\Coolite.Examples\Examples\GridPanel\WebService_Connections\ServiceUsing\Default.aspx

[Vladimir]

Hi,

To understnad the problem which you have with WebService please see the response from the service (use Fiddler or FireBug)

[inayath]

Thanks, the error i get is "{"Message":"There was an error processing the request.","StackTrace":"","ExceptionType":""}" both in browser as well in fiddler, this happen only if Method='GET' if i change back to 'POST' i dont get this error.

All i need to do is on 'GetAllData' method for the very first time when it fetches data from server i want to persis it in session just to avoid roundtrip call to server.

Here is my code

<ext:Store ID="OperatorStore" runat="server" AutoLoad="True">
    <Proxy>
        <ext:HttpProxy Json="true" Method="GET" Url="/_vti_bin/SPFramework/TestService.asmx/GetAllData" />
    </Proxy>
    <Reader>
        <ext:JsonReader ReaderID="OperatorStoreReader" Root="d">
            <Fields>
                <ext:RecordField Name="OperatorId" />
                <ext:RecordField Name="OperatorCode" />
            </Fields>
        </ext:JsonReader>
    </Reader>
    <Listeners>
        <DataChanged Handler="SelectCurrentOperator();" />
        <LoadException Handler="var e = e || {message: response.responseText}; alert('Load failed: ' + e.message);" />
        <SaveException Handler="alert('save failed');" />
        <CommitDone Handler="alert('commit success');" />
        <CommitFailed Handler="alert('Commit failed\nReason: '+msg)" />
    </Listeners>
</ext:Store>
<div style="margin-bottom: 1px;">
    <ext:ComboBox ID="OperatorCombo" Width="228" runat="server" EmptyText="Select Operator..."
        StoreID="OperatorStore" DisplayField="OperatorCode" ValueField="OperatorId">
        <Listeners>
            <Select Handler="UpdateCurrentOperator(#{OperatorCombo}.getValue(),#{OperatorCombo}.getRawValue())" />
        </Listeners>
    </ext:ComboBox>
</div>

[Vladimir]

Hi,

Do you use JSON (script) web service?
If yes then you have to set Json="true" for proxy
Also, I guess that your web service decline GET requests
Try to add to web method

[ScriptMethod(UseHttpGet = true)]

[inayath]

Thanks, I did not had UseHttpGet=true, after adding this i get different error than before it throws "401 Unauthorized", if i remove the line of code which adds the data into session its fine. Below is my webservice method.

[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)]
public List<Operator> GetAllOperator()
{
List<Operator> ops = null;
 
ops = _securitySvcBroker.UserService.GetAllAccessibleOperator();
Session.Add("ops", ops);
 
return ops;
}

[Vladimir]

Hi,

Did you mark service as script service (ScriptService attribute)?

[inayath]

Yes, it has got following attributes

[WebService(Namespace = "http://test.co.uk/webservice/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[System.Web.Script.Services.ScriptService]

[inayath]

All i have to do is serialize [Serializable()] the object :-)

Thanks for your help.

[Daniil]

Hi inayath,

Please clarify is the problem solved?