how I can show the sum of in a datagridview column

Question

I need to show the sum of the count column from this datagridview, but I don't know how I can get to the data in the datagridview.

When I click on the button, I want to show 94 in label1.

How can this be done?

Answer 1

Add the total row to your data collection that will be bound to the grid.

Answer 2

//declare the total variable
int total = 0;
//loop through the datagrid and sum the column 
for(int i=0;i<datagridview1.Rows.Count;i++)
{
    total +=int.Parse(datagridview1.Rows[i].Cells["CELL NAME OR INDEX"].Value.ToString());

}
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