向dataTable添加行以在需要时填充

本文关键字：填充 dataTable 添加行 | 更新日期: 2023-09-27 18:08:39

我有数据表中的数据:

Recom   House   49
Recom   Street  47
Recom   Floor   29
Area    House   5
Area    Floor   1
Observ  Floor   1

但是我想要这样的:

Recom   House   49
Recom   Street  47
Recom   Floor   29
Area    House   5
**Area  Street  0**
Area    Floor   1
**Observ    House   0**
**Observ    Street  0**
Observ  Floor   1

我不能从存储过程中做到这一点，所以我在代码后面尝试，但我真的不知道，我尝试了一些东西，但它不起作用，并且不是最好的解决方案。

int getTotal = ((from a in dtSerieDrill.AsEnumerable() 
                                             where a.Field<int>("idTipoRevision") == Int32.Parse(dtSerie.Tables[0].Rows[i]["idTipoRevision"].ToString())
                                             select a.Field<string>("TipoRevision")).Distinct()).ToArray().Length;
                            if (getTotal == arrayCat.Length) 
                            {
                                auxData += "{";
                                auxData += "name:'" + dtSerieDrill.Rows[n]["TipoRevision"].ToString() + "',";
                                auxData += "y:" + Double.Parse(dtSerieDrill.Rows[n]["Total"].ToString()) + "";
                                auxData += "},";
                            } else {
                                for (int g = 0; g < arrayCat.Length - 1; g++) 
                                {
arrayCat //categories(house,street,floor,etc)
                                    if (!arrayCat[g].Equals(dtSerieDrill.Rows[n]["Especialidad"].ToString()) && !(totalAux == (g+1))) 
                                    {
                                        auxData += "{";
                                        auxData += "name:'" + arrayCat[g] + "',";
                                        auxData += "y:0";
                                        auxData += "},";
                                        break;
                                    } else {
                                        auxData += "{";
                                        auxData += "name:'" + dtSerieDrill.Rows[n]["TipoRevision"].ToString() + "',";
                                        auxData += "y:" + Double.Parse(dtSerieDrill.Rows[n]["Total"].ToString()) + "";
                                        auxData += "},";
                                        break;
                                    }
                                }
                            }

我有代码，因为我将使用它的脚本。我可以用空的total添加行或者创建一些

向dataTable添加行以在需要时填充

我认为使用数组或集合可以更容易地达到这个目标。

。

//create you context
YourContext dbContext = new YourContext();
String[] firstCategory = dbContext.Categories.Where(x => x.categoryType == "YourFirstCategoryType").ToArray();
String[] secondCategory = dbContext.Categories.Where(x => x.categoryType == "YourSecondCategoryType").ToArray();
DataTable dt = new DataTable();
dt.Columns.Add("Category1");
dt.Columns.Add("Category2");
dt.Columns.Add("Total");
foreach(var c1 in firstCategory)
   foreach(var c2 in firstCategory)
   {
      //create a new row object 
      DataRow R = dt.NewRow();
      //set value to the colums
      R[0] = c1;
      R[1] = c2;
      R[2] = GetTotal(c1,c2);//GetTotal is some function that query database and returns total when you have c1 and c2 parameter, you should check is this combination doesn't exist you returns 0
      dt.Rows.Add(R);
   }

我希望它能帮助你。

假设您有一个DataTable dt，您可以使用dt. rows . add (parameters)

添加新行。
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