C1TrueDBGrid列页脚错误＆＃34;输入字符串格式不正确＆＃34;

Question

//文本框/插入代码

       dg.AllowAddNew = true;
       dg.MoveLast();
       this.dg.Row = this.dg.Row + 1;
       this.dg.Select();
       dg.Columns[0].Text = a;

       dg.Columns[1].Text = b;
       dg.UpdateData();

//页脚代码

        int a = 0;
        double sum = 0;
        for (a = 0; a <= this.dg.Splits[0].Rows.Count - 1; a++)
        {
            sum += Convert.ToDouble(this.dg.Columns["AMOUNT"].CellValue(a));
        }
        this.dg.Columns["AMOUNT"].FooterText = sum.ToString("n");

//它适用于其他c1网格，不知道为什么这个网格没有

Answer 1

TrueDbGrid.Columns（“ Amount”）。FooterText = FormatNumber（0.0，2，TriState.True，TriState.False，TriState.False）.ToString