Save and retrieve Image c#

I have app, but have some simple solution.

Using this code to insert into sql and working fine.

But i have 2000 employes and have problem with database was too big when put inside pictures of all workers

I need some help or solution, to save some loaction with file name exmp. c:\some folder\imageofemployee.jpg

When click on datagrid row (selection changed) to show picture from that location

Not put in sql image, just file location.

Some help???

I hope to good explane

//Insert into sql
byte[] img_arr = null;
MemoryStream ms = new MemoryStream();
//dataPictureBox.Image.Save(ms, dataPictureBox.Image.RawFormat);
bool isNullOrEmpty = pictureBox1 == null || pictureBox1.Image == null;
if (!isNullOrEmpty)
pictureBox1.Image.Save(ms, pictureBox1.Image.RawFormat);
img_arr = ms.GetBuffer();
using (SqlConnection openCon = new SqlConnection(cs))
{
string saveStaff = "declare @maxNo integer = 0 select @maxNo = isnull(max(redni_broj), 0) from [dbo].[radnici]; Set @maxNo=@maxNo+1; INSERT INTO dbo.radnici (redni_broj, data) VALUES (@maxNo,@data)";
using (SqlCommand querySaveStaff = new SqlCommand(saveStaff))
{
querySaveStaff.Connection = openCon;
querySaveStaff.Parameters.AddWithValue("@data", img_arr);
openCon.Open();
querySaveStaff.ExecuteNonQuery();
openCon.Close();
}

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