[Solved] ASP.NET C# help me about sum or minus in amount

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Try this:

var total = dataGridView1.Rows.Cast<DataGridViewRow>()
            .AsEnumerable()
            .Sum(x => x.Cells[3].Value.ToString() == "Credit"? int.Parse(x.Cells[2].Value.ToString()) :  -(int.Parse(x.Cells[2].Value.ToString())))
            .ToString();
textBox1.Text = total;

3

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solved ASP.NET C# help me about sum or minus in amount