plz mark as solved

and u have to use this Form1_FormClosing or Form1_FormClosed

hi rosebabu

u can do one thing may r maynot be correct

in ur form1.designers.cs

then it wil work. if u waant to close appl u can use button click event like

hi im using 2.0 version. if u r using form borderless then u can create own close, min,max button and in close button u can write minmize coding

hi im expecting more expl if u have patients

hi u mean, r u created any buton on ur form or r u teling the default close, mini,max button top right corner of form.
tel me clearly where u want to do

hi
if u want to delete row
give like this

dataGridView1.Rows.RemoveAt(dataGridView1.CurrentRow.Index);

hi
if u want to delete selected row means, the code s
dataGridView1.Rows.RemoveAt(dataGridView1.CurrentRow.Index);

for Add rows
dataGridView1.Rows.Add(10,10);
adding value s depending upon...

if u want to add existing file means. right click the solution exp and add- existing file- choose only filename.cs enough.it wil add to sol exp. then u can create object for that form in form1 -...

u can check this below link plz
http://www.codeproject.com/KB/cs/notepad.aspx