Hiding rows in datagrid with certain containing values C# WPF Linq

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C#

WPF

LINQ

DataGrid

I am trying to hide a row of data from my datagrid that contains information from the class Credentials.

Is there any way to do this? Here is what I have tried, but in no way seem close:

foreach (DataGridRow DR in dgEmployeeInformation.Items)
{
    if (DR.Cell.Value == Credentials._eld.LoginID)
    {
        DR.Visible = false;
    }
}

My application won't start with the current code being used. If anyone can help, I would be extremely grateful! Thank you.