C# Data.DataTable类代码示例

        public static DataTable Sehirler()
        {
            try
            {
                using (baglan = new SqlConnection(ConnectionString))
                {
                    baglan.Open();
                    using (komutver = new SqlCommand())
                    {
                        komutver.Connection = baglan;
                        komutver.CommandText = "sehir_Listele";
                        komutver.CommandType = CommandType.StoredProcedure;
                        adp = new SqlDataAdapter(komutver);
                        dt = new DataTable();
                        adp.Fill(dt);
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }

            return dt;
        }

 /// <summary>
 /// Get InvoiceNo Corresponding to Ledger For PurchaseReturn Register
 /// </summary>
 /// <param name="decLedgerId"></param>
 /// <returns></returns>
 public List<DataTable> GetInvoiceNoCorrespondingtoLedgerForPurchaseReturnReport(decimal decLedgerId, decimal decVoucherId)
 {
     List<DataTable> ListObj = new List<DataTable>();
     DataTable dtbl = new DataTable();
     try
     {
         if (sqlcon.State == ConnectionState.Closed)
         {
             sqlcon.Open();
         }
         SqlDataAdapter sqldataadapter = new SqlDataAdapter("GetInvoiceNoCorrespondingtoLedgerForPurchaseReturnReport", sqlcon);
         sqldataadapter.SelectCommand.CommandType = CommandType.StoredProcedure;
         SqlParameter sqlparameter = new SqlParameter();
         sqlparameter = sqldataadapter.SelectCommand.Parameters.Add("@ledgerId", SqlDbType.Decimal);
         sqlparameter.Value = decLedgerId;
         sqlparameter = sqldataadapter.SelectCommand.Parameters.Add("@voucherTypeId", SqlDbType.Decimal);
         sqlparameter.Value = decVoucherId;
         sqldataadapter.Fill(dtbl);
         ListObj.Add(dtbl);
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message, "OpenMiracle", MessageBoxButtons.OK, MessageBoxIcon.Information);
     }
     finally
     {
         sqlcon.Close();
     }
     return ListObj;
 }

		public void GetReady ()
		{
			dataTable = new DataTable ("itemTable");
			dc1 = new DataColumn ("itemId");
			dc2 = new DataColumn ("itemName");
			dc3 = new DataColumn ("itemPrice");
			dc4 = new DataColumn ("itemCategory");
			
			dataTable.Columns.Add (dc1);
			dataTable.Columns.Add (dc2);
			dataTable.Columns.Add (dc3);
			dataTable.Columns.Add (dc4);
			DataRow dr;
			seed = 123;
			rowCount = 5;
			rndm = new Random (seed);
			for (int i = 1; i <= rowCount; i++) {
				dr = dataTable.NewRow ();
				dr["itemId"] = "item " + i;
				dr["itemName"] = "name " + rndm.Next ();
				dr["itemPrice"] = "Rs. " + (rndm.Next () % 1000);
				dr["itemCategory"] = "Cat " + ((rndm.Next () % 10) + 1);
				dataTable.Rows.Add (dr);
			}
			dataTable.AcceptChanges ();
			dataView = new DataView (dataTable);
			dataView.ListChanged += new ListChangedEventHandler (OnListChanged);
			listChangedArgs = null;
		}

        protected void Page_Load(object sender, EventArgs e)
        {
            if (IsPostBack) return;

            var datos = new DataTable();
            datos.Columns.Add("Nombre");
            datos.Columns.Add("Activo");

            var row = datos.NewRow();
            row["Nombre"] = "Palma";
            row["Activo"] = "Si";
            datos.Rows.Add(row);

            row = datos.NewRow();
            row["Nombre"] = "Caucho";
            row["Activo"] = "Si";
            datos.Rows.Add(row);

            row = datos.NewRow();
            row["Nombre"] = "Café";
            row["Activo"] = "Si";
            datos.Rows.Add(row);

            ViewState["Datos"] = datos;
            ViewState["ckbActivarFiltro"] = "";
        }

        private void BindGridView()
        {
            CommonDao<Safezhuan> newmgr = new CommonDao<Safezhuan>();

            DataTable dt = new DataTable();
            dt = newmgr.FindDataTableByCondition("");

            if (dt.Rows.Count == 0)
            {
                dt.Rows.Add(dt.NewRow());
                GridViewEmployee.DataSource = dt;
                GridViewEmployee.DataBind();

                int columnCount = dt.Columns.Count;

                GridViewEmployee.Rows[0].Cells.Clear();

                GridViewEmployee.Rows[0].Cells.Add(new TableCell());

                GridViewEmployee.Rows[0].Cells[0].ColumnSpan = columnCount + 1;

                GridViewEmployee.Rows[0].Cells[0].Text = "没有记录";

                GridViewEmployee.Rows[0].Cells[0].Style.Add("text-align", "center");
            }
            else
            {
                GridViewEmployee.DataSource = dt;
                GridViewEmployee.DataBind();
            }
        }

 private DataTable GetTiposVenda()
 {
     DataTable dataTable = new DataTable();
     this.con = new SqlConnection(Security.GetCnn());
     string selectCommandText = "";
     if (this._dev != "D")
     {
         selectCommandText = "select tipo_venta_id, descripcion, devolucion from Tipo_venta where devolucion='N'";
     }
     else
     {
         selectCommandText = "select tipo_venta_id, descripcion, devolucion from Tipo_venta where devolucion='S'";
     }
     if ((this.con != null) && (this.con.State == ConnectionState.Open))
     {
         this.con.Close();
     }
     this.con.Open();
     try
     {
         new SqlDataAdapter(selectCommandText, this.con).Fill(dataTable);
         this.con.Close();
     }
     catch (Exception)
     {
     }
     return dataTable;
 }

        public static DataTable GetAllCidades(int estado_id)
        {
            DataTable retorno = new DataTable();
            StringBuilder SQL = new StringBuilder();
            SQL.Append(@"SELECT CidadeId, Nome FROM Cidade WHERE EstadoId = @ESTADO_ID");

            try
            {
                using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["Mendes_varejo"].ConnectionString))
                {
                    connection.Open();
                    SqlCommand command = new SqlCommand(SQL.ToString(), connection);
                    command.Parameters.AddWithValue("@ESTADO_ID", estado_id);
                    command.ExecuteNonQuery();
                    SqlDataAdapter adapter = new SqlDataAdapter(command);
                    adapter.Fill(retorno);
                }
            }
            catch (Exception erro)
            {
                throw erro;
            }

            return retorno;
        }

 public void LoadData()
 {
     GridTable = new DataTable("FalseX2011-07");
     GridTable = MyCL.LoadDataTable("Select knowID, know From CDknow");
     gridControlMain.DataSource = GridTable;
     gridControlMain.RefreshDataSource();
 }

        public void Write(DataTable table)
        {
            Log.Debug(String.Format("Writing {0} {1} to database..", table.Rows.Count, "record".Pluralize(table.Rows.Count)));

            // Reopen connection, if it has closed for some reason.
            if (!Adapter.IsConnectionOpen())
            {
                Adapter.OpenConnection();
            }

            // Manage dynamic table creation/management, if requested.
            if (!isInitialized)
            {
                DbTableManager.InitializeTable(Adapter, table, tableInitializationOptions);
                isInitialized = true;
            }

            // Write all rows in table.
            int numRecordsWritten = 0;
            foreach (DataRow row in table.Rows)
            {
                try
                {
                    Adapter.InsertRow(table.TableName, row);
                    numRecordsWritten++;
                }
                catch (DbException) { }
            }
            Log.Debug(String.Format("Finished writing {0} {1}!", numRecordsWritten, "record".Pluralize(numRecordsWritten)));
        }

        void ConvertToDataTable()
        {
            ISheet sheet = hssfworkbook.GetSheetAt(0);
            System.Collections.IEnumerator rows = sheet.GetRowEnumerator();

            DataTable dt = new DataTable();
            for (int j = 0; j < 5; j++)
            {
                dt.Columns.Add(Convert.ToChar(((int)'A')+j).ToString());
            }

            while (rows.MoveNext())
            {
                IRow row = (HSSFRow)rows.Current;
                DataRow dr = dt.NewRow();

                for (int i = 0; i < row.LastCellNum; i++)
                {
                    ICell cell = row.GetCell(i);


                    if (cell == null)
                    {
                        dr[i] = null;
                    }
                    else
                    {
                        dr[i] = cell.ToString();
                    }
                }
                dt.Rows.Add(dr);
            }
            dataSet1.Tables.Add(dt);
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            #region Properties For The Base Class and Check Login
            LoginID = Request.QueryString["LoginID"];
            LoginInfo = CCLib.Login.GetLoginInfo(LoginID);
            Redirect();
            PageTitle = GetPortText(5372, false);
            Section = "portfolio_tool";
            CSS = "student";
            HeadTag = "<STYLE TYPE='TEXT/CSS'><!--.btnDescription {  font: 11px Verdana, Arial, Helvetica, sans-serif; margin: 0px 15px}--></STYLE>";
            BodyTag = " alink='#990000' style='background-image:url(/media/shared/bg_left_bar_grey.gif);background-repeat:repeat-y;' bgcolor='#ffffff' leftmargin=0 link='#003366' text='#000000' topmargin=0 vlink='#003366' marginwidth='0' marginheight='0'";
            LeftBar = "<TABLE WIDTH='100%' BORDER='0' CELLSPACING='0' CELLPADDING='0'><TR VALIGN='TOP' BGCOLOR='#669966'><td background='/media/portfolio_tool/bg_bar_tan_top.gif'><img height=23 src='/media/student_parent/icons/icon_arrow.gif' alt='' width=24><img height=23 src='/media1/" + this.PortType + "/h_h_main" + this.SuffixCode() + ".gif' alt='' width=141>";
            #endregion Properties For The Base Class and Check Login

            #region Initialize Values and Form Execution
            CheckPortSession();

            if (!Page.IsPostBack)
            {
                strSQL = "select c.SectionNameCapital" + SuffixCode() + " Ability,Convert(varchar(10),DBO.fn_ConvertTimeZone(StartTime," + PortInfo["SchoolID"].ToString() + ",1),101) [Test Date], Percentile,CorrectAnswers Correct,TotalQuestions,a.APTestID from AP_SavedTest a join AP_SavedSection b on a.APTestID = b.APTestID join AP_Section c on b.SectionID = c.SectionID where PortfolioID = " + PortInfo["PortfolioID"].ToString() + " and IsActiveStatus = 1 order by b.SectionID";
                dtSummary = CCLib.Common.DataAccess.GetDataTable(strSQL);

                // Prevent user manually change url from browser
                if (dtSummary.Rows.Count == 0)
                    Response.Redirect("AP_Portfolio2.aspx?LoginID=" + LoginID);
                if (dtSummary.Rows.Count > 0 && dtSummary.Rows.Count < 6)
                    Response.Redirect("AP_Portfolio3.aspx?LoginID=" + LoginID);

                //Check if Matchmaker results deleted
                divMM.Visible = false;
                ClientStorage clientStorage = new ClientStorage();
                clientStorage.Retrieve(LoginID);

                if (clientStorage.AspectIndicator < 2)
                {
                    divMM.Visible = true;
                    divLinkMM.Visible = false;
                }
                if (dtSummary.Rows[0]["Percentile"].ToString() == "")
                {
                    UpdateScore();
                    strSQL = "select c.SectionNameCapital" + SuffixCode() + " Ability,Convert(varchar(10),DBO.fn_ConvertTimeZone(StartTime," + PortInfo["SchoolID"].ToString() + ",1),101) [Test Date], Percentile,CorrectAnswers Correct,TotalQuestions,a.APTestID from AP_SavedTest a join AP_SavedSection b on a.APTestID = b.APTestID join AP_Section c on b.SectionID = c.SectionID where PortfolioID = " + PortInfo["PortfolioID"].ToString() + " and SchoolID = " + PortInfo["SchoolID"].ToString() + " and IsActiveStatus = 1 order by b.SectionID";
                    dtSummary = CCLib.Common.DataAccess.GetDataTable(strSQL);
                }
                rptSummary.DataSource = dtSummary;
                rptSummary.DataBind();
                AssignToUserControl();
            }
            #endregion Initialize Values and Form Execution

            #region Properties For The Individual Base Class
            SetCustomJS();
            PortTitle = GetPortText(5372,false);
            SetTitleBar();
            SetLeftButtons();
            PortSubTitle = GetPortText(8804, false);
            SetSubTitleBar();
            SetFooter();
            #endregion Properties For The Individual Base Class
        }

		internal static void SetDSInfo(DataTable dsTable) {
			DataRow row = dsTable.NewRow();
			row["TypeName"] = "SMALLINT";
			row["ProviderDbType"] = MySqlDbType.Int16;
			row["ColumnSize"] = 0;
			row["CreateFormat"] = "SMALLINT";
			row["CreateParameters"] = null;
			row["DataType"] = "System.Int16";
			row["IsAutoincrementable"] = true;
			row["IsBestMatch"] = true;
			row["IsCaseSensitive"] = false;
			row["IsFixedLength"] = true;
			row["IsFixedPrecisionScale"] = true;
			row["IsLong"] = false;
			row["IsNullable"] = true;
			row["IsSearchable"] = true;
			row["IsSearchableWithLike"] = false;
			row["IsUnsigned"] = false;
			row["MaximumScale"] = 0;
			row["MinimumScale"] = 0;
			row["IsConcurrencyType"] = DBNull.Value;
			row["IsLiteralsSupported"] = false;
			row["LiteralPrefix"] = null;
			row["LiteralSuffix"] = null;
			row["NativeDataType"] = null;
			dsTable.Rows.Add(row);
		}

		private void BindToColumns(DataTable metaData)
		{
			if(false == _fieldsBound)
			{
				if(metaData.Columns.Contains("TABLE_CATALOG"))			f_Catalog			 = metaData.Columns["TABLE_CATALOG"];
				if(metaData.Columns.Contains("TABLE_SCHEMA"))			f_Schema			 = metaData.Columns["TABLE_SCHEMA"];
				if(metaData.Columns.Contains("TABLE_NAME"))				f_TableName			 = metaData.Columns["TABLE_NAME"];
				if(metaData.Columns.Contains("INDEX_CATALOG"))			f_IndexCatalog		 = metaData.Columns["INDEX_CATALOG"];
				if(metaData.Columns.Contains("INDEX_SCHEMA"))			f_IndexSchema		 = metaData.Columns["INDEX_SCHEMA"];
				if(metaData.Columns.Contains("INDEX_NAME"))				f_IndexName			 = metaData.Columns["INDEX_NAME"];
				if(metaData.Columns.Contains("UNIQUE"))					f_Unique			 = metaData.Columns["UNIQUE"];
				if(metaData.Columns.Contains("CLUSTERED"))				f_Clustered			 = metaData.Columns["CLUSTERED"];
				if(metaData.Columns.Contains("TYPE"))					f_Type				 = metaData.Columns["TYPE"];
				if(metaData.Columns.Contains("FILL_FACTOR"))			f_FillFactor		 = metaData.Columns["FILL_FACTOR"];
				if(metaData.Columns.Contains("INITIAL_SIZE"))			f_InitializeSize	 = metaData.Columns["INITIAL_SIZE"];
				if(metaData.Columns.Contains("NULLS"))					f_Nulls				 = metaData.Columns["NULLS"];
				if(metaData.Columns.Contains("SORT_BOOKMARKS"))			f_SortBookmarks		 = metaData.Columns["SORT_BOOKMARKS"];
				if(metaData.Columns.Contains("AUTO_UPDATE"))			f_AutoUpdate		 = metaData.Columns["AUTO_UPDATE"];
				if(metaData.Columns.Contains("NULL_COLLATION"))			f_NullCollation		 = metaData.Columns["NULL_COLLATION"];
				if(metaData.Columns.Contains("COLLATION"))				f_Collation			 = metaData.Columns["COLLATION"];
				if(metaData.Columns.Contains("CARDINALITY"))			f_Cardinality		 = metaData.Columns["CARDINALITY"];
				if(metaData.Columns.Contains("PAGES"))					f_Pages				 = metaData.Columns["PAGES"];
				if(metaData.Columns.Contains("FILTER_CONDITION"))		f_FilterCondition	 = metaData.Columns["FILTER_CONDITION"];
				if(metaData.Columns.Contains("INTEGRATED"))				f_Integrated		 = metaData.Columns["INTEGRATED"];
			}
		}

 public static DataTable Ilceler(int id)
 {
     try
     {
         using (baglan = new SqlConnection(ConnectionString))
         {
             baglan.Open();
             using (komutver = new SqlCommand())
             {
                 komutver.Connection = baglan;
                 komutver.CommandText = "ilce_Listele";
                 komutver.Parameters.Add("@ilceId", SqlDbType.Int);
                 komutver.Parameters["@ilceId"].Value = Convert.ToInt32(id);
                 komutver.CommandType = CommandType.StoredProcedure;
                 adp = new SqlDataAdapter(komutver);
                 dt = new DataTable();
                 adp.Fill(dt);
             }
         }
     }
     catch (Exception)
     {
         throw;
     }
     return dt;
 }

        public void ExcuteSQLBulkCopy(DataTable Datatable, string TableName, ConnectionState connectionstate, ref bool executionSucceeded)
        {
            try
            {
                if (objConnection.State == System.Data.ConnectionState.Closed)
                {
                    objConnection.Open();
                }

                SqlBulkCopy.BatchSize = Datatable.Rows.Count;
                SqlBulkCopy.BulkCopyTimeout = 0;
                SqlBulkCopy.DestinationTableName = TableName;
                SqlBulkCopy.WriteToServer(Datatable);
                SqlBulkCopy.Close();
                executionSucceeded = true;
            }
            catch (Exception ex)
            {
                executionSucceeded = false;
                HandleExceptions(ex);
            }
            finally
            {
                //SqlBulkCopy.ColumnMappings.Clear();

                if (connectionstate == ConnectionState.CloseOnExit)
                {
                    if (objConnection.State == System.Data.ConnectionState.Open)
                    {
                        objConnection.Close();
                    }
                }
            }
        }