Question

我正在使用asp.net web app .net version 4.我有一个数据表，如下所示：

    FCTR_GRP    CUST_TIER   CUST_TIER
    DSC SW      Tier 1      1.000000
    DSC SW      Tier 2      1.000000
    DSC SW      Tier 3      1.000000
    DSC SW      Tier 4      1.000000

使用我从Netezza数据库中读取的上述数据表我想将其转换为数据表，如：

    FCTR_GRP    TIER_1      TIER_2    TIER_3    TIER_4
    DSC SW      1.000000    1.000000  1.000000  1.000000

然后将其绑定到gridview。由于层可以在以后添加，因此gridview需要是动态的。直到现在我到达这里。我可以像这样转换第一个数据表：

 FCTR_GRP    TIER_1      TIER_2    TIER_3    TIER_4
 DSC SW      1.000000    
 DSC SW                  1.000000  
 DSC SW                            1.000000  
 DSC SW                                      1.000000

代码用作（不满意代码:(但没有其他选择）

 DataTable CustomerCurrentFactorDataTable = new DataTable();
 CustomerCurrentFactorDataTable.Columns.Add("Factor Group", typeof(System.String));
            foreach (DataRow datarow in dt.Rows)
            {
                CustomerCurrentFactorDataTable.Columns.Add(datarow["CUST_TIER"].ToString().ToUpper(), typeof(System.String));
            }
            GridViewSample.DataSource = CustomerCurrentFactorDataTable;
            GridViewSample.DataBind();
            #region
            string query = "SELECT FCTR_GRP, CUST_TIER, CUST_FCTR FROM DBO.CUST_FCTR";
            #endregion
            dt = getData.GetDataTable(query);
            DataRow dr = CustomerCurrentFactorDataTable.NewRow();
            int columnCount = CustomerCurrentFactorDataTable.Columns.Count;
            int internalCounter = 0;
            int count = 0;
            bool flag=false;
            int loopoutcounter = 0;
            foreach (DataRow dataRow in dt.Rows)
            {
                count = 0;
                if (loopoutcounter == 2)
                {
                    loopoutcounter = 0;
                    CustomerCurrentFactorDataTable.Rows.Add(dr);
                    dr = CustomerCurrentFactorDataTable.NewRow();
                    //dr.Delete();
                }
                foreach (var cell in dataRow.ItemArray)
                {
                    if (count == 0)
                    {
                        dr[count] = cell.ToString();
                        loopoutcounter++;
                        count++;

                    }

                    if (flag)
                    {
                        dr[internalCounter] = cell.ToString();
                        flag = false;
                        loopoutcounter++;
                    }
                    foreach (DataColumn column in CustomerCurrentFactorDataTable.Columns)
                    {                            
                        if (column.ColumnName == cell.ToString().ToUpper())
                        {
                            flag = true;
                            internalCounter = column.Ordinal;
                            continue;
                        }                                               
                    }
                }

如果我们可以转换最后一个数据表，例如第二个数据表或任何击球选项，任何帮助都将非常有用。谢谢提前。

Answer 1

                string html = "<table>";
                //add header row
                html += "<tr>";
                for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
                    html += "<td>" + ds.Tables[0].Columns[i].ColumnName + "</td>";
                html += "</tr>";
                //add rows
                for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                {
                    html += "<tr>";
                    for (int j = 0; j < ds.Tables[0].Columns.Count; j++)
                        html += "<td>" + ds.Tables[0].Rows[i][j].ToString() + "</td>";
                    html += "</tr>";
                }
                html += "</table>";

C＃使用自定义格式将DataTable行转换为列

1 个答案: