Extjs grid Model has,

```
{
    name: "ORDERDATE",
    type: 'date',
    dateFormat: 'MS'
}

```

and I tried sync store that has above model,

then the date posted format is like this (Json Type),

```
ORDERDATE "\/Date(1346212800000)\/"

```

and I guess because of this format, 

in Asp.net(C#) couldn't get that value using DateTime? variable.

I tried to receive that data using **DateTime? ORDERDATE**, but it has Null value all the time.

So, I want to try to change the date post format as 'm/d/y', but I don't know how to do this,

anybody know, please advice me.

Thank you.