Gridview列/行的總和ASP.NET C＃

Question

我想在gridview中創建列和行的總和，我嘗試了很多方法，但我做不到。我試圖瞭解什麼是錯的。我很抱歉如果我的代碼是一團糟。我正在使用ASP.NET C＃。現在只需在response.write中顯示總和就足夠了，稍後我會把它放在一個列/行上。

protected void Button1_Click(object sender, EventArgs e) 
    { 

     SqlConnection conn = new SqlConnection("Data Source=*****;Initial Catalog=***;User=***;password=**"); 

     //query para o select das especialidades todas 
     string specstring = "SELECT Speciality.Shortname, SUM(1) as contar " + 
          "FROM DoctorEnterpriseDetails INNER JOIN " + 
          "Speciality ON DoctorEnterpriseDetails.Speciality1 = Speciality.SpecialityId INNER JOIN " + 
          " GroupType ON DoctorEnterpriseDetails.GroupId = GroupType.GroupId " + 
          " WHERE (DoctorEnterpriseDetails.EnterpriseId = 48) " + 
          " GROUP BY Speciality.Shortname "; 

     SqlCommand command = new SqlCommand(specstring, conn); 
     command.Connection.Open(); 

     SqlDataAdapter myDataAdapter = new SqlDataAdapter(); 
     myDataAdapter.SelectCommand = command; 

     DataTable specstringtable = new DataTable(); 

     myDataAdapter.Fill(specstringtable); 
     specstring = ""; 

     for (int i = 0; i < specstringtable.Rows.Count; i++) 
     { 

      if (specstring == "") 
      { 

       specstring = "[" + specstringtable.Rows[i][0] + "]".ToString(); 
      } 
      else 
      { 
       specstring = specstring + ", " + "[" + specstringtable.Rows[i][0] + "]"; 

      } 

     } 


     command.Connection.Close(); 

     ////query para a pivot table 
     string querystring = "SELECT Description AS Categoria, " + specstring + 
          "FROM (SELECT GroupType.Description, Speciality.Shortname, SUM(1) AS contar, GroupType.GroupId " + 
          "FROM DoctorEnterpriseDetails INNER JOIN " + 
          "Speciality ON DoctorEnterpriseDetails.Speciality1 = Speciality.SpecialityId INNER JOIN " + 
          "GroupType ON DoctorEnterpriseDetails.GroupId = GroupType.GroupId " + 
          "WHERE (DoctorEnterpriseDetails.EnterpriseId = 48) " + 
          "GROUP BY GroupType.Description, Speciality.Shortname, DoctorEnterpriseDetails.GroupId, GroupType.GroupId) as ps " + 
          "PIVOT (SUM(contar) FOR Shortname IN (" + specstring + ")) pvt " + 
          "ORDER BY GroupId; "; 

     ////Response.Write(querystring); 
     SqlCommand command2 = new SqlCommand(querystring, conn); 
     command2.Connection.Open(); 

     SqlDataAdapter myDataAdapter2 = new SqlDataAdapter(); 
     myDataAdapter2.SelectCommand = command2; 


     DataTable cobtable = new DataTable(); 

     myDataAdapter2.Fill(cobtable); 


     DataColumn cl = cobtable.Columns.Add("Total"); 
     cobtable.Columns["Total"].SetOrdinal(1); 

     DataRow dr; 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = "Total"; 
     cobtable.Rows.InsertAt(dr, 0); 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = ""; 
     cobtable.Rows.InsertAt(dr, 1); 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = "%"; 
     cobtable.Rows.InsertAt(dr, 3); 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = ""; 
     cobtable.Rows.InsertAt(dr, 4); 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = "%"; 
     cobtable.Rows.InsertAt(dr, 6); 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = ""; 
     cobtable.Rows.InsertAt(dr, 7); 
     dr = cobtable.NewRow(); 
     dr["Categoria"] = "%"; 
     cobtable.Rows.InsertAt(dr, 9); 

     GroupGrid.DataSource = cobtable; 
     GroupGrid.DataBind(); 

     //GroupGrid.FooterRow.Cells[1].Text = cobtable.Compute("sum(" + cobtable.Columns[3].ColumnName + ")", null).ToString(); 

     decimal a = 0, soma = 0; 
     string la = ""; 
     //Response.Write(GroupGrid.Rows[0].Cells.Count); 

     for (int i = 3; i <= (GroupGrid.Rows[0].Cells.Count); i++) 
     { 
      Response.Write("!"); 
      //string l3 = GroupGrid.Rows[6].Cells[i-1].Text; 
      // Response.Write(l3); 
      Response.Write(GroupGrid.Rows[5].Cells[i - 1].Text); 
      // la = GroupGrid.Rows[5].Cells[i - 1].Text; 
      // sum += Convert.ToInt32(la); 
      //sum = Convert.ToInt32(GroupGrid.Rows[5].Cells[i - 1].Text.ToString()); 
      //a = a + sum; 
      //GroupGrid.FooterRow.Cells[1].Text = sum.ToString(); 
     } 

     // Response.Write(a.ToString()); 

Answer 1

你是對你的代碼是有點亂;）

我試圖理解你的意思所以纔在這裏的情況下，你有例子，如何總結的值行的值相加在列中或某些列和行中都是所有單元格的總和。

這些示例假設您沒有單元格橫跨多於一行或多列，並且值的總和小於「長」大小，並且每個單元格包含的數字是「整數」。

public void DisplayGridViewSums(GridView gv) 
{ 
    foreach (GridViewRow row in gv.Rows) 
    { 
     long sum = SumValuesInRow(row); 
     Console.WriteLine("Sum of values in raw '{0}' is: {1}", row.RowIndex, sum); 
    } 

    for (int i=0; i<gv.Columns.Count;i++) 
    { 
     long sum = SumValuesInColumn(gv,i); 
     Console.WriteLine("Sum of values in column '{0}' with header '{1}' is: {2}",i, gv.Columns[i].HeaderText, sum); 
    } 
    long totalsum = SumColumnsAndRowsInGridView(gv); 
    Console.WriteLine("Sum of all cells in each row is: {0}", totalsum); 
} 

public long SumColumnsAndRowsInGridView(GridView gv) 
{ 
    long sum = 0; 
    foreach (GridViewRow row in gv.Rows) 
    { 
     sum += SumValuesInRow(row); 
    } 
    return sum; 
} 

public long SumValuesInRow(GridViewRow row) 
{ 
    long sum = 0; 
    foreach (TableCell cell in row.Cells) 
    { 
     sum += int.Parse(cell.Text); 
    } 
    return sum; 
} 

public long SumValuesInColumn(GridView gv, int columnIndx) 
{ 
    long sum = 0; 
    foreach (GridViewRow row in gv.Rows) 
    { 
     sum += int.Parse(row.Cells[columnIndx].Text); 
    } 
    return sum; 
} 

第一種方法顯示控制檯上的總和。另一個計算特定GridView的總和。這些計數方法可以使用Linq編寫，但爲了方便起見，將它們留爲簡單的和f​​oreach循環。

希望它解決您的問題！