如果语句不起作用.请帮我帮我 [英] If statement is not working. plz help me with htis

问题描述

private void button4_Click(object sender, EventArgs e)
       {


           if (txttenure.Text == "1")
           {
               b = Convert.ToInt32(txtijarahamount.Text);



               for (int j = 1; j <= 12; j++)
               {
                   int newRowIndex = dataGridView1.Rows.Add();
                   int z = 12;

                   markup = double.Parse(txtmarkup.Text);
                   Double a = (b / 100) * 80;
                   prfrate = (markup + 3.00) / 100.00;
                   bnkprf = (a * prfrate * 31.00) / 365.00;
                   rental = (a + bnkprf + 30000) / z;

                   z--;
                   string r = Convert.ToString(rental);
                   dataGridView1.Rows[newRowIndex].Cells["Amount"].Value = r.ToString();

                   a = a - Convert.ToDouble(dataGridView1.Rows[newRowIndex].Cells["Amount"].Value);
                   r = Convert.ToString(rental);



                   dataGridView1.Rows[newRowIndex].Cells["Date"].Value = dateTimePicker1.Value.Date.AddMonths(j).ToString();
                   dataGridView1.Rows[newRowIndex].Cells["ijarah_id"].Value = txtijarahid.Text;

               }

推荐答案

更改此行

if (txttenure.Text == "1")

对此

to this

if (int.TryParse(txttenure.Text, out b))

1.比较时可能会出现错误，因此请使用字符串比较功能来比较值和位置.
2.使用try catch块查看是否有任何错误(您正在转换很多字符串以使其倍增和浮动，可能是其中一些/任何不正确的顺序).

试试这个


试试{
if(string.Compare(txttenure.Text，"1"，true)== 0)
{
}
}//尝试结束
捕获(除例外)
{MessageBox.Show(ex.Message); }

1. there might be error in your comparing so use string compare function, to compare values and locations.
2. use a try catch block to see if there is any error, (you are casting a lot of strings to double and float, may be some/any of them not correct order).

try this


try{
if(string.Compare (txttenure.Text, "1", true)==0)
{
}
}//end of try
catch(Excetion ex)
{ MessageBox.Show(ex.Message); }

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