## InvalidOperationException when trying to modify table entries using EntityFrameWork

I would like to modify entries in a table, the problem is when i try to iterate through on it and try to modify it, i get an invalid operation exception, it says that the table changed meanwhile. How can i solve this issue?

## Modify or add jQuery to show unlimited entries from another lookup list from SharePoint Online

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Hello all,

I am using from a online post which you have cascading parent/ child/ grandchild list with the help of two jQuery's.

Main js.file

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$.fn.HillbillyCascade= function (optionsArray) { var Cascades = new Array(); var NewForm = getParameterByName("ID") == null;$ .fn.HillbillyCascade.Cascade = function(parent,cascadeIndex)…

Modify or add jQuery to show unlimited entries from another lookup list from SharePoint Online

## Matrices with all non-zero entries.

I am reading a paper and it uses one of these facts, I would like to know if it has a simple proof:

Let $$F$$ be an infinite field and $$n\ge2$$ and integer. Then for any non-scalar matrices $$A_1,A_2,…,A_k$$ in $$M_{n}(F)$$, there exist some invertible matrix $$Q \in M_{n}(F)$$ such that each matrix $$QA_1Q^{-1}, QA_2Q^{-1},…, QA_{k}Q^{-1}$$ have all non-zero entries.

I just don’t know where to start at the first place, could have used diagonalizability but not all non-scalar matrices are diagonalizable. Maybe its too simple, please help.