Imports System.Data.SqlClient
Public Class Frm_01HF_finish_chem
    Dim cmd As New SqlCommand
    Dim da As New SqlDataAdapter
    Dim dt As New DataTable
    Dim sql As String
    Dim conn As New SqlConnection
    Private Sub Frm_01HF_finish_chem_Load(sender As Object, e As EventArgs) Handles MyBase.Load


        conn.ConnectionString = connstring
        conn.Open()

        sql = "select top(300)  date as 日期 ,no as 单号,article as 品名,type as 分类 from ht_finish_chem group by date,no,article,type order by date desc"
        cmd.CommandText = sql
        cmd.Connection = conn
        da.SelectCommand = cmd
        da.Fill(dt)

        DataGridView1.DataSource = dt
        DataGridView1.RowTemplate.Height = 35

        DataGridView1.Columns(0).Width = 120
        DataGridView1.Columns(1).Width = 120
        DataGridView1.Columns(2).Width = 180
        DataGridView1.Columns(3).Width = 150
        ' DataGridView1.Columns(4).Width = 120
        ' 根据内容调整 DataGridView 大小
        DataGridView2.Width = DataGridView2.PreferredSize.Width
        '  DataGridView1.Width = DataGridView2.PreferredSize.Width
        'DataGridView2.Height = DataGridView2.PreferredSize.Height
        'DataGridView2.AutoSize = True



    End Sub

    Private Sub DataGridView1_SelectionChanged(sender As Object, e As EventArgs) Handles DataGridView1.SelectionChanged



        sql = "SELECT TOP (100) HT_finish_chem.chem AS 品名, HT_Chem_Main.sys_name AS 系统品名, CAST(HT_finish_chem.percents AS numeric(10, 1)) AS 比例, HT_finish_chem.weight AS 重量, CASE WHEN chem = '水' THEN '水' ELSE type1 END AS 分类
FROM HT_finish_chem  LEFT OUTER JOIN
  HT_Chem_Main ON HT_finish_chem.chem = HT_Chem_Main.in_use
where date='" & DataGridView1.Rows(DataGridView1.CurrentCell.RowIndex).Cells("日期").Value & "'and HT_finish_chem.no= '" & DataGridView1.Rows(DataGridView1.CurrentCell.RowIndex).Cells("单号").Value & "'
ORDER BY HT_finish_chem.weight DESC"


        cmd.CommandText = sql
        cmd.Connection = conn
        da.SelectCommand = cmd
        Dim dt1 As New DataTable
        da.Fill(dt1)


        ' 确保 DataTable 已填充到 DataGridView 中
        Dim totalPercents As Double = 0
        Dim totalWeight As Double = 0

        ' 遍历 DataTable 中的所有行，累加比例和重量
        For Each row As DataRow In dt1.Rows
            totalPercents += Convert.ToDouble(row("比例"))
            totalWeight += Convert.ToDouble(row("重量"))
        Next

        ' 在 DataTable 中添加一行，显示合计
        Dim totalRow As DataRow = dt1.NewRow()
        totalRow("品名") = "合计"
        totalRow("比例") = totalPercents
        totalRow("重量") = totalWeight
        dt1.Rows.Add(totalRow)

        ' 刷新 DataGridView，显示新的合计行
        DataGridView2.DataSource = dt1

        ' 将最后一行设置为红色字体
        Dim lastRowIndex As Integer = DataGridView2.Rows.Count - 2

        With DataGridView2.Rows(lastRowIndex)
            .DefaultCellStyle.ForeColor = Color.Red       ' 设置字体颜色为红色
            .DefaultCellStyle.Font = New Font("Microsoft YaHei", 10, FontStyle.Bold) ' 加粗字体
            .DefaultCellStyle.BackColor = Color.LightYellow ' 设置背景颜色为淡黄色
            .ReadOnly = True                              ' 禁止编辑合计行
        End With

        DataGridView2.Columns(1).Width = 120
        DataGridView2.Columns(2).Width = 70
        DataGridView2.Columns(3).Width = 70
        DataGridView2.Columns(4).Width = 120


    End Sub

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 'search


        sql = "select top(300)  date as 日期 ,no as 单号,article as 品名,type as 分类 from ht_finish_chem  where article like '%" & TextBox1.Text & "%' or type like '%" & TextBox1.Text & "%' group by date,no,article,type order by date desc"
        cmd.CommandText = sql
        cmd.Connection = conn
        da.SelectCommand = cmd

        dt = New DataTable

        da.Fill(dt)

        DataGridView1.DataSource = dt
        DataGridView1.RowTemplate.Height = 35

        DataGridView1.Columns(0).Width = 120
        DataGridView1.Columns(1).Width = 120
        DataGridView1.Columns(2).Width = 180
        DataGridView1.Columns(3).Width = 150


    End Sub
End Class