DataGridView not displaying the add new row datagridview rowspan DataGridView show new/empty row on TOP of the Grid Datagridview: Can not change column background color after setting row background color? DataGridView.CurrentRow vs SelectedRow Datareader to array Dataset or datatable into DBF fi...
pDataTable.LoadDataRow(Values, false); if (pDataTable.Rows.Count != 0) { pDataRow = pDataTable.Rows[0]; } return pDataRow; } 5、SqlDataReader.GetValues和DataRow.ItemArray = Values方法 该方法使用上面的原理,首先使用pSqlDataReader.GetValues(Values)将数据输出到数组Values中,然后定义一个D...
...扩:一般很少直接返回SqlDataReader对象的, ?...贴一个比较弱的转换(有更好的可以贴评论中的,我就先抛个砖头) public static IEnumerable SqlDataReaderToList(SqlDataReader reader...是否存在某列 if (reader.GetSchemaTable().DefaultView.Count > 0)...
mSqlCommand.Connection=mSqlConnection; mSqlCommand.CommandText=string.Format("select count(*)from webs with (nolock) where DeleteTransactionId=0x"); mSqlCommand.COmmndType=CommandType.Text;objectresult=mSqlCommand.ExecuteScalar();if(result !=null) { totalCount=Convert.ToInt32(result); } } } }c...
pDataSet.Load(pSqlDataReader, LoadOption.Upsert, pDataTable.TableName);if (pDataSet.Tables[0].Rows.Count != 0){ pDataRow = pDataSet.Tables[0].Rows[0];} return pDataRow;} 该方法经常会出现数值转换错误：如nvarchar 值 '123456789011' 的转换溢出了 int 列。超出了最大整数值。
if(pDataSet.Tables[0].Rows.Count!=0) { pDataRow=pDataSet.Tables[0].Rows[0]; } returnpDataRow; } 该方法经常会出现数值转换错误：如nvarchar值'123456789011'的转换溢出了int列。超出了最大整数值。需要用户自己做排错处理。 3、DataTable.Load方法 方法的原理同上，先使用pDataTable.Load(pSqlData...
while (reader.Read()) { ReadSingleRow((IDataRecord)reader); } // Call Close when done reading. reader.Close(); } } private static void ReadSingleRow(IDataRecord record) { Console.WriteLine(String.Format("{0}, {1}", record[0], record[1])); } } 注解...
* None : Uses standard SQL ``INSERT`` clause (one per row). * 'multi': Pass multiple values in a single ``INSERT`` clause. * callable with signature ``(pd_table, conn, keys, data_iter)``. 1. 2. 3. 4. 5. 6. 7.
.GetFieldType(i)); } } DataRow row = dataTable.NewRow(); for (int i = 0; i < reader.FieldCount; i++) { row[i] = reader[i]; } dataTable.Rows.Add(row); } } // 此时,dataTable已包含从数据库中读取的数据 Console.WriteLine("DataTable has " + dataTable.Rows.Count + " ...
for (int i = 0; i < list.Count; i++) { ArrayList tempList = new ArrayList(); foreach (PropertyInfo pi in propertys) { object obj = pi.GetValue(list[i], null); tempList.Add(obj); } object[] array = tempList.ToArray(); ...