I need to query an array of data embedded in a dataset to determine if a value exist

Question

Sorry, but I can't provide actual code, so this maybe be difficult to understand.

I'll do the best I can.

**dset.data.arrayofData** // format of my issue

I can **GetAll from my dset** which is necessary. 

The x => would equal data returned.

The problem is **data.arrayofData** is an array of data.

I need to determine if a value exist anywhere in this array for each record to determine its worth to me.

This arrayOfData would be similar to.

**arrayOfData
{
    FirstName,
    LastName, 
    Email,
}**

Let's say I'm logged in and identified by my email address. **LoggedInEmail**.

I need to search the array of this record to determine if my email address is present and the array can be 1, 2, 3, etc... in size.

**arrayOfData[0]
arrayOfData[1]
arrayOfData[2]
arrayOfData[~]**

What would I use to determine if my **LoggedInEmail** is present in **arrayOfData**?

**GetAll( x=> x.arrayOfData...)** and then what?  Select? Any? Contains?

Sorry, but this is all I can provide. My hands are tied on that end.

Sorry about the formatting. I haven't been here in years.

I've reviewed some other questions, but they don't appear to apply here.