//开始计算
private void btnCalculate_Click(object sender, EventArgs e)
{
btnCalculate.Enabled = false;
if (string.IsNullOrEmpty(textBox1.Text))
{
MsgBox.ShowInfo("请输入站号信息");
return;
}
if (!backgroundWorker1.IsBusy)
{
CaculateInfo info = new CaculateInfo()
{
a0 = double.Parse(numericUpDown1.Value.ToString()),
N = int.Parse(numericUpDown2.Value.ToString()),
CaculateDate = dateTimePicker1.Value,
StateNo = textBox1.Text
};
Label label6 = new Label();
label6.Height = 60;
label6.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
label6.Dock = System.Windows.Forms.DockStyle.Top;
label6.Font = new System.Drawing.Font("楷体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
label6.BackColor = Color.White;
label6.Location = new System.Drawing.Point(0, 0);
label6.TabIndex = 0;
label6.Text = $"（{DateTime.Now}）:";
label6.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.panel2.Controls.Add(label6);
info.lbl = label6;
backgroundWorker1.RunWorkerAsync(info);
}
}
private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
CaculateInfo info = e.UserState as CaculateInfo;
if (e.ProgressPercentage < 100)
{
info.lbl.Text = info.lbl.Text + $"{info.StateNo}+";
}
else
{
info.lbl.Text = info.lbl.Text + $"{info.StateNo} = {info.result}";
}
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
CaculateInfo info = e.Argument as CaculateInfo;
double result = 0;
for (int i = 0; i < info.N; i++)
{
double rain = 0;
//计算雨量值和系数值
DataSet ds = SqlHelper.ExecuteDataset(SqlHelper.GetConnection(), CommandType.Text, $"SELECT RAINFALL_1_DAY FROM RAINFALL_DAY where time = '{info.CaculateDate.AddDays(i * (-1)).ToString("yyyy-MM-dd")}' and monitornum = '{info.StateNo}'");
if (ds.Tables[0].Rows.Count != 0)
{
rain = double.Parse(ds.Tables[0].Rows[0][0].ToString());
}
//系数
double num = Math.Round(Math.Pow(info.a0, i), 2);
result += num * rain;
CaculateInfo temp = null;
if (i != info.N - 1)
{
temp = new CaculateInfo()
{
StateNo = $"{ num}*{rain}", lbl = info.lbl
}
}
;
else
{
temp = new CaculateInfo()
{
StateNo = $"{ num}*{rain}", lbl = info.lbl, result = result.ToString()
}
};
backgroundWorker1.ReportProgress((i + 1) * 100 / info.N, temp);
}
}