[CLOSED] TargetException: Object does not match target type - error with store

[GLD]

On loading my view, which contains the following Store, I get an error:

"TargetException: Object does not match target type"

<ext:Store ID="AddressesStore" runat="server" AutoLoad="true" AutoDataBind="true" Json="true">
                <BaseParams>
                    <ext:Parameter Name="Id" Value="IdHidden.getValue()" Mode="Raw"/>
                </BaseParams>
                <UpdateProxy>
                    <ext:HttpWriteProxy Url="/Client/SaveAddresses/" Timeout="10000"/>
                </UpdateProxy>
                <Proxy>
                    <ext:HttpProxy Method="GET" Url="/Client/GetAddresses/" Json="true"/>
                </Proxy>
                <Reader>
                    <ext:JsonReader>
                        <Fields>
                            <ext:RecordField Name="Id" Type="Int" />
                            <ext:RecordField Name="AccountId" Type="Int" />
                            <ext:RecordField Name="Address1" AllowBlank="false"/>
                            <ext:RecordField Name="Address2" />
                            <ext:RecordField Name="Address3" />
                            <ext:RecordField Name="Address4" />
                            <ext:RecordField Name="Address5" />
                            <ext:RecordField Name="Postcode" />
                            <ext:RecordField Name="Active" Type="Boolean" DefaultValue="true"  />
                       </Fields>
                    </ext:JsonReader>
                </Reader>
                <Listeners>
                    <Load Handler="addDefaultFieldToAddressStore();" />       
                </Listeners>
            </ext:Store>

My Controller action is returning an appropriate AjaxStoreResult:

public AjaxStoreResult GetClientAddresses(string Id) {
            AccountRepository accRepo = new AccountRepository();
            IEnumerable<ClientAddress> masterAccountAddresses = accRepo.GetClientAddresses(Int64.Parse(Id));
            AjaxStoreResult addresses = new AjaxStoreResult(masterAccountAddresses.ToList());
            return addresses;
        }

Is there a erroneous or missing setting in my View/Store causing the error?

thanks

[Vladimir]

Hi,

It is reflection issue, i guess that problem in the serializing of ClientAddress class.
Please provide test sample which we can run locally

[GLD]

Hi,

It is reflection issue, i guess that problem in the serializing of ClientAddress class.
Please provide test sample which we can run locally

Hi
This is part of a more complex page. The data is via a MySql database and the main part of the page gets its data via a ViewModel. It would be pretty impossible to provide a small, working local example.

In my Controller I can see what appears to be a perfectly valid AjaxStoreResult being returned to the view and in a previous version of the View the Store was populated fine via the Data Model. The problem only arose when the httpproxy for the store was introduced - we had to update that store/grid via ajax.

thaks

[Vladimir]

Hi,

Can you provide definition of ClientAddress class?

[GLD]

Hi,

Can you provide definition of ClientAddress class?

Our Model/Objects are auto generated from our database tables in Visual Studio. The ClientAddress class consists of:

Id - Int64 - the Identifier
MasterAccountId - Int
Address1 - String
Address2 - String
Address3 - String
Address4 - String
Address5 - String
Postcode - String
Active - Boolean

[Vladimir]

Hi,

Are there any other properties (for example, properties with references on another entity)?
Unfortunately, I have no idea whats wrong without test sample, are you able to create list of ClientAddress with temp data (instead of DB data retrieving)?

[GLD]

Hi,

Are there any other properties (for example, properties with references on another entity)?
Unfortunately, I have no idea whats wrong without test sample, are you able to create list of ClientAddress with temp data (instead of DB data retrieving)?

Is is a pretty standard Business Object with MasterAccountId referencing the Id of another standard Business Class, MasterAccount.

The problem seems to have arisen when I mixed httpproxy and basic Forms/strongly typed view. To recrerate this I think I would have to recreate the ViewModel etc. I'm not sure how easy this would be.

Unfortunately, I appear to be encountering one problem after another.

regards

[Vladimir]

Hi,

Can you provide full stack of the exception?
I believe that your business object service properties which cannot be serialized
Can you convert it like in the following sample?

var query = from c in masterAccountAddresses select new {Id = c.Id, AccountId = c.AccountId, ...};
return new AjaxStoreResult(query);

[GLD]

Hi,

Can you provide full stack of the exception?
I believe that your business object service properties which cannot be serialized
Can you convert it like in the following sample?

var query = from c in masterAccountAddresses select new {Id = c.Id, AccountId = c.AccountId, ...};
return new AjaxStoreResult(query);

Hi
Running the following in my Controller as the httpproxy:

var query = from c in theMasterAccountAddresses select new {Id = c.Id, MasterAccountId = c.MasterAccountId,
Address1 = c.Address1, Address2 = c.Address2, Address3 = c.Address3, Address4 = c.Address4, Address5 = c.Address5,
Postcode = c.Postcode, Active = c.Active};
return new AjaxStoreResult(query);

I seem to get the data I expect, however, I don't now get an exception. My store, though, does not get populated, even though I've got:

<ext:Store ID="masterAccountAddressesStore" runat="server" Json="true" AutoLoad="true" AutoDataBind="true" >

thanks

[Vladimir]

Hi,

<ext:HttpProxy Method="GET" Url="/Client/GetAddresses/" Json="true"/>

Please remove Json=true and retest