Datagridview

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VB

Windows

DataGridView

I have a datagridview in my win form
It has a calander cell which populate on first cell click means any row cell (0) .
dgv has allowusertoaddrow property true .
I used the code

From here[^]

for calander cell
now the problem is when I change the value of calander cell . and leave the cell .
instead of adding a single blank row it add three rows. and first two rows have the values for the autoincrement column and last row is full blank..

I trace the addrow event and it is firing three times .

I do not understand why it is happning ..
pls help