[acarur01]

Ok. What else could I provide then?

Also, if you really needed more info, it would've helped if you said so after my last comment instead of me waiting for a response. Thanks.

[Isomorphic]

A standalone test case is always the way to guarantee that we can reproduce something.

As far as what else could be provided - remember, we don't have your app in front of us - we have no idea what else it's doing, so we can't really suggest what you may need to change to find a reproducible case. However as soon as you can tell us something like "I turned off X and the problem stopped" we can provide further guidance.

[acarur01]

Here is the sample I was finally able to recreate. It is not exactly what I have in our environemnt - in this testcase I am nullifying a required value just before I call updateData where as in our environment, the required field is by default null. To run the testcase, load that sample (I used /isomorphic/system/reference/SmartClient_Explorer.html#databoundUpdate), and click on g8 column. The error I see will show and the response is what we have pretty much.

Server returned VALIDATION_ERROR with no error message performing operation 'worldDS_update'.

isc.ListGrid.create({
    ID: "countryList",
    width:500, height:224, alternateRecordStyles:true,
    dataSource: worldDS,canEdit :true,editEvent: "click",
cellClick: function(record, rowNum, colNum){
if(colNum == 4){
record['countryCode'] = null;
        countryList.updateData(record);
}
},
    // display a subset of fields from the datasource
    fields:[
        {name:"countryCode"},
        {name:"countryName"},
        {name:"capital"},
        {name:"continent", required:true},
{name:"member_g8"}
    ],
    sortFieldNum: 0, // sort by countryCode
    dataPageSize: 50,
    autoFetchData: true,
    selectionType: "single"
})


isc.IButton.create({
    left:0, top:240, width:150,
    title:"Continent > Europe",
    click: function () {
        if (!countryList.getSelectedRecord()) return; // nothing selected
        var updatedRecord = isc.addProperties(
            countryList.getSelectedRecord(),
            {continent:"Europe"}
        );        
        countryList.updateData(updatedRecord);
    }
})

isc.IButton.create({
    left:170, top:240, width:150,
    title:"Continent > Asia",
    click: function () {
        if (!countryList.getSelectedRecord()) return; // nothing selected
        var updatedRecord = isc.addProperties(
            countryList.getSelectedRecord(),
            {continent:"Asia"}
        );        
        countryList.updateData(updatedRecord);
    }
})

Data:

<DataSource
    ID="worldDS"
    serverType="sql"
    recordName="country"
    testFileName="/examples/shared/ds/test_data/world.data.xml"
>
    <fields>
        <field name="pk"            type="integer"    hidden="true"            primaryKey="true" />
        <field name="countryCode"   type="text"       title="Code"             required="true"   />
        <field name="countryName"   type="text"       title="Country"          required="true"   />
        <field name="capital"       type="text"       title="Capital"          />
        <field name="government"    type="text"       title="Government"       length="500"      />
        <field name="continent"     type="text"       title="Continent"        >
            <valueMap>
                <value>Europe</value>
                <value>Asia</value>
                <value>North America</value>
                <value>Australia/Oceania</value>
                <value>South America</value>
                <value>Africa</value>
            </valueMap>
        </field>
        <field name="independence"  type="date"       title="Nationhood"          />
        <field name="area"          type="float"      title="Area (km&amp;sup2;)" />
        <field name="population"    type="integer"    title="Population"          />
        <field name="gdp"           type="float"      title="GDP ($M)"            />
        <field name="member_g8"     type="boolean"    title="G8"                  />
    </fields>
</DataSource>

Server Response:

[
    {
        queueStatus:-1, 
        errors:[
            {
                countryCode:{
                    errorMessage:"Field is required"
                }
            }
        ], 
        invalidateCache:false, 
        data:null, 
        status:-4, 
        isDSResponse:true
    }
]

[Isomorphic]

OK, the issue in this test case is that your assignment to "record" is a direct change to the client-side cache and makes the data invalid, which is never supposed to incur - loaded data should already be valid and user editing and/or calls to setEditValue() can never make it invalid.

So if you've got this kind of direct modification of the cache in the real app, get rid of it - the click methods on the two buttons in your sample (that you copied from a product sample) show a correct way to submit changes without modifying cached data.

[acarur01]

No I do not have a direct modification in my real app. But the row that the user is editing is a new row coming from the server and does not contain initial data -I just did the nullifying in the browser side in that testcase to show the error I was getting.

[Isomorphic]

Thats equivalent - you're basically delivering data from the server (so it should be valid) but it would not pass validation. Aside from this particular manifestation, this creates a general problem that we don't know whether / when to report errors because data that has not been edited is invalid.

If you want to put a row into a state where it's a new row that will need user input to become valid, use startEditingNew().