前面几个例子学习了从DataBase里面读数据，下面我们学习将数据插入到数据库中，可以向页中添加简单的输入窗体，并在窗体提交事件处理程序中执行插入命令。与前两个示例一样，使用命令对象的 Parameters 集合填充命令的值。注意，在试图插入到数据库中之前，还要检查以确保所需的值非空。这将防止与数据库的字段约束意外冲突。还需在 try/catch 块的内部执行插入命令，以防插入行的主键已经存在。
先看aspx文件：
<body MS_POSITIONING="GridLayout">
<form runat="server" ID="Form1">
<h3><font face="宋体">插入具有验证的数据行</font></h3>
<table width="95%">
<tr>
<td valign="top">
<ASP:DataGrid id="MyDataGrid" runat="server" Width="700" BackColor="#ccccff"
BorderColor="black" ShowFooter="false" CellPadding="3" CellSpacing="0"
Font-Name="宋体" Font-Size="8pt" HeaderStyle-BackColor="#aaaadd"
EnableViewState="false" />
</td>
<td valign="top">
<table style="FONT: 9pt 宋体">
<tr>
<td colspan="2" bgcolor="#aaaadd" style="FONT:10.5pt 宋体">添加新作者：</td>
</tr>
<tr>
<td nowrap>作者 ID：</td>
<td>
<input type="text" id="au_id" value="000-00-0000" runat="server"
NAME="au_id">
<asp:RequiredFieldValidator id="au_idReqVal" ControlToValidate="au_id"
Display="Static" Font-Name="Verdana" Font-Size="12"
runat="server"> *</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td nowrap>姓氏：</td>
<td>
<input type="text" id="au_lname" value="Doe" runat="server" NAME="au_lname">
<asp:RequiredFieldValidator id="au_lnameReqVal"
ControlToValidate="au_lname" Display="Static" Font-Name="Verdana"
Font-Size="12" runat="server"> *</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td nowrap>名字：</td>
<td>
<input type="text" id="au_fname" value="John" runat="server"
NAME="au_fname">
<asp:RequiredFieldValidator id="au_fnameReqVal"
ControlToValidate="au_fname" Display="Static" Font-Name="Verdana"
Font-Size="12" runat="server"> *</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>电话：</td>
<td><nobr> <input type="text" id="phone" value="808 555-5555"
runat="server" NAME="phone">
<asp:RequiredFieldValidator id="phoneReqVal" ControlToValidate="phone"
Display="Static" Font-Name="Verdana" Font-Size="12"
runat="server"> *</asp:RequiredFieldValidator></nobr>
</td>
</tr>
<tr>
<td>地址：</td>
<td><input type="text" id="address" value="One Microsoft Way"
runat="server" NAME="address"></td>
</tr>
<tr>
<td>城市：</td>
<td><input type="text" id="city" value="Redmond" runat="server"
NAME="city"></td>
</tr>
<tr>
<td>州：</td>
<td>
<select id="state" runat="server" NAME="state">
<option selected>CA</option>
<option>IN</option>
<option>KS</option>
<option>MD</option>
<option>MI</option>
<option>OR</option>
<option>TN</option>
<option>UT</option>
</select>
</td>
</tr>
<tr>
<td nowrap>邮政编码：</td>
<td><input type="text" id="zip" value="98005" runat="server"
NAME="zip"></td>
</tr>
<tr>
<td>协定：</td>
<td>
<select id="contract" runat="server" NAME="contract">
<option value="0" selected>假</option>
<option value="1">真</option>
</select>
</td>
</tr>
<tr>
<td></td>
<td style="PADDING-TOP:15px">
<input type="submit" value="添加作者" runat="server" ID="Submit1"
NAME="Submit1">
</td>
</tr>
<tr>
<td colspan="2" style="PADDING-TOP:15px" align="middle">
<span id="Message" EnableViewState="false" runat="server">
<asp:RegularExpressionValidator id="RegularExpressionValidator1"
ASPClass="RegularExpressionValidator" ControlToValidate="zip"
ValidationExpression="[0-9]{5}" Display="Dynamic" Font-Name="Arial"
Font-Size="11" runat="server">* 邮政编码必须是 5 位数字<br></asp:RegularExpre
ssionValidator>
<asp:RegularExpressionValidator id="phoneRegexVal"
ControlToValidate="phone" ValidationExpression="[0-9]{3} [0-9]{3}-[0-9]{4}"
Display="Dynamic" Font-Name="Arial" Font-Size="11" runat="server">* 电话号码
格式必须为：XXX XXX-XXXX <br></asp:RegularExpressionValidator>
<asp:RegularExpressionValidator id="au_idRegexVal"
ControlToValidate="au_id" ValidationExpression="[0-9]{3}-[0-9]{2}-[0-9]{4}"
Display="Dynamic" Font-Name="Arial" Font-Size="11" runat="server">* 作者 ID
必须是数字：XXX-XX-XXXX <br></asp:RegularExpressionValidator></span>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
aspx.cs文件
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
namespace study
{
/// <summary>
/// datagrid_5 的摘要说明。
/// </summary>
public class datagrid_5 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid MyDataGrid;
protected System.Web.UI.WebControls.RequiredFieldValidator au_idReqVal;
protected System.Web.UI.WebControls.RequiredFieldValidator au_lnameReqVal;
protected System.Web.UI.WebControls.RequiredFieldValidator au_fnameReqVal;
protected System.Web.UI.WebControls.RequiredFieldValidator phoneReqVal;
protected System.Web.UI.WebControls.RegularExpressionValidator
RegularExpressionValidator1;
protected System.Web.UI.WebControls.RegularExpressionValidator
phoneRegexVal;
protected System.Web.UI.WebControls.RegularExpressionValidator
au_idRegexVal;
protected System.Web.UI.HtmlControls.HtmlInputText au_id;
protected System.Web.UI.HtmlControls.HtmlInputText au_lname;
protected System.Web.UI.HtmlControls.HtmlInputText au_fname;
protected System.Web.UI.HtmlControls.HtmlInputText phone;
protected System.Web.UI.HtmlControls.HtmlInputText address;
protected System.Web.UI.HtmlControls.HtmlInputText city;
protected System.Web.UI.HtmlControls.HtmlSelect state;
protected System.Web.UI.HtmlControls.HtmlInputText zip;
protected System.Web.UI.HtmlControls.HtmlSelect contract;
protected System.Web.UI.HtmlControls.HtmlInputButton Submit1;
protected System.Web.UI.HtmlControls.HtmlGenericControl Message;
SqlConnection myConnection;
private void Page_Load(object sender, System.EventArgs e)
{
myConnection = new SqlConnection("user id=sa;password=;initial
catalog=pubs;data source=jeff");
if (!IsPostBack)
BindGrid();
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
&nb
