当前位置: 首页>>代码示例>>C#>>正文


C# DataColumn.AutoIncrementStep属性代码示例

本文整理汇总了C#中System.Data.DataColumn.AutoIncrementStep属性的典型用法代码示例。如果您正苦于以下问题:C# DataColumn.AutoIncrementStep属性的具体用法?C# DataColumn.AutoIncrementStep怎么用?C# DataColumn.AutoIncrementStep使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在System.Data.DataColumn的用法示例。


在下文中一共展示了DataColumn.AutoIncrementStep属性的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: AddAutoIncrementColumn

private void AddAutoIncrementColumn()
{
    DataColumn column = new DataColumn();
    column.DataType = System.Type.GetType("System.Int32");
    column.AutoIncrement = true;
    column.AutoIncrementSeed = 1000;
    column.AutoIncrementStep = 10;

    // Add the column to a new DataTable.
    DataTable table = new DataTable("table");
    table.Columns.Add(column);
}
开发者ID:.NET开发者,项目名称:System.Data,代码行数:12,代码来源:DataColumn.AutoIncrementStep

示例2: Main

//引入命名空间
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;

class Program {
    static void Main(string[] args) {
        DataSet carsInventoryDS = new DataSet("Inventory");
        carsInventoryDS.ExtendedProperties["TimeStamp"] = DateTime.Now;
        carsInventoryDS.ExtendedProperties["Company"] = "Name";

        DataColumn carIDColumn = new DataColumn("CarID", typeof(int));
        carIDColumn.ReadOnly = true;
        carIDColumn.Caption = "Car ID";
        carIDColumn.AllowDBNull = false;
        carIDColumn.Unique = true;
        carIDColumn.AutoIncrement = true;
        carIDColumn.AutoIncrementSeed = 0;
        carIDColumn.AutoIncrementStep = 1;
        carIDColumn.ColumnMapping = MappingType.Attribute;

        DataColumn carMakeColumn = new DataColumn("Make", typeof(string));
        DataColumn carColorColumn = new DataColumn("Color", typeof(string));
        DataColumn carPetNameColumn = new DataColumn("PetName", typeof(string));
        carPetNameColumn.Caption = "Name";

        DataTable inventoryTable = new DataTable("Inventory");
        inventoryTable.Columns.AddRange(new DataColumn[] { carIDColumn, carMakeColumn, carColorColumn, carPetNameColumn });

        inventoryTable.PrimaryKey = new DataColumn[] { inventoryTable.Columns[0] };

        DataRow carRow = inventoryTable.NewRow();
        carRow["Make"] = "B";
        carRow["Color"] = "C";
        carRow["PetName"] = "A";
        inventoryTable.Rows.Add(carRow);
        carRow = inventoryTable.NewRow();
        carRow["Make"] = "S";
        carRow["Color"] = "R";
        carRow["PetName"] = "E";
        inventoryTable.Rows.Add(carRow);

        carsInventoryDS.Tables.Add(inventoryTable);
        PrintTable(carsInventoryDS.Tables["Inventory"]);
    }

    private static void PrintTable(DataTable dt) {
        DataTableReader dtReader = dt.CreateDataReader();
        while (dtReader.Read()) {
            for (int i = 0; i < dtReader.FieldCount; i++) {
                Console.Write("{0} = {1} ",
                    dtReader.GetName(i).Trim(),
                    dtReader.GetValue(i).ToString().Trim());
            }
            Console.WriteLine();
        }
        dtReader.Close();
    }
}
开发者ID:C#程序员,项目名称:System.Data,代码行数:60,代码来源:DataColumn.AutoIncrementStep


注:本文中的System.Data.DataColumn.AutoIncrementStep属性示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。