ASP.NET两个关联的表的增删查改
两个关联的表的增删查改
主要用了参数 SqlParameter，事务执行多条sql
表Users
ID int
Name varchar
表UsersDetail
ID int
UserId int (对应表Users的ID)
Phone varchar
Address varchar
----------------------------------------------------------------------------------------------
Web.Config
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source=local;Initial Catalog=Test;User ID=sa;Password="
providerName="System.Data.SqlClient" />
</connectionStrings>
----------------------------------------------------------------------------------------------
AppCode/DataBase.cs
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using System;
using System.Collections;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
/// <summary>
/// 用于数据访问的类
/// </summary>
public class DataBase:IDisposable
{
protected SqlConnection Connection;
protected String ConnectionString;
public DataBase()
{
ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
}
~DataBase()
{
try
{
if (Connection != null)
Connection.Close();
}
catch { }
try
{
Dispose();
}
catch { }
}
protected void Open()
{
if (Connection == null)
{
Connection = new SqlConnection(ConnectionString);
}
if (Connection.State.Equals(ConnectionState.Closed))
{
Connection.Open();
}
}
public void Close()
{
if (Connection != null)
Connection.Close();
}
public void Dispose()
{
if (Connection != null)
{
Connection.Dispose();
Connection = null;
}
}
public SqlParameter MakeParam(string ParamName, SqlDbType DbType, Int32 Size, object Value)
{
SqlParameter Param;
if (Size > 0)
Param = new SqlParameter(ParamName, DbType, Size);
else Param = new SqlParameter(ParamName, DbType);
if (Value != null)
Param.Value = Value;
return Param;
}
public DataSet GetDataSet(String SqlString, SqlParameter[] param)
{
Open();
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = cmd;
DataSet dataset = new DataSet();
adapter.Fill(dataset);
Close();
return dataset;
}
public DataTable GetDataTable(String SqlString, SqlParameter[] param)
{
DataSet dataset = GetDataSet(SqlString, param);
dataset.CaseSensitive = false;
return dataset.Tables[0];
}
public int ExecuteSQL(string SqlString, SqlParameter[] param)
{
Open();
try
{
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
return cmd.ExecuteNonQuery();
}
catch (Exception e)
{
throw e;
}
finally
{
Close();
}
}
public int ExecuteSQL(String[] SqlStrings, SqlParameter[][] param)
{
int count = -1;
Open();
SqlCommand cmd = new SqlCommand();
SqlTransaction trans = Connection.BeginTransaction();
cmd.Connection = Connection;
cmd.Transaction = trans;
try
{
int i = 0;
foreach (String str in SqlStrings)
{
cmd.CommandText = str;
cmd.Parameters.AddRange(param[i]);
count = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
i++;
}
trans.Commit();
}
catch
{
trans.Rollback();
count = -1;
}
finally
{
Close();
}
return count;
}
public SqlDataReader ExecuteReader(String SqlString, SqlParameter[] param)
{
Open();
try
{
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
SqlDataReader myReader = cmd.ExecuteReader();
return myReader;
}
catch (Exception e)
{
throw e;
}
}
public int ExecuteScalar(string SqlString, SqlParameter[] param)
{
Open();
try
{
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
object o = cmd.ExecuteScalar();
return int.Parse(o.ToString());
}
catch (Exception e)
{
throw e;
}
}
}
using System;
using System.Collections;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
/// <summary>
/// 用于数据访问的类
/// </summary>
public class DataBase:IDisposable
{
protected SqlConnection Connection;
protected String ConnectionString;
public DataBase()
{
ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
}
~DataBase()
{
try
{
if (Connection != null)
Connection.Close();
}
catch { }
try
{
Dispose();
}
catch { }
}
protected void Open()
{
if (Connection == null)
{
Connection = new SqlConnection(ConnectionString);
}
if (Connection.State.Equals(ConnectionState.Closed))
{
Connection.Open();
}
}
public void Close()
{
if (Connection != null)
Connection.Close();
}
public void Dispose()
{
if (Connection != null)
{
Connection.Dispose();
Connection = null;
}
}
public SqlParameter MakeParam(string ParamName, SqlDbType DbType, Int32 Size, object Value)
{
SqlParameter Param;
if (Size > 0)
Param = new SqlParameter(ParamName, DbType, Size);
else Param = new SqlParameter(ParamName, DbType);
if (Value != null)
Param.Value = Value;
return Param;
}
public DataSet GetDataSet(String SqlString, SqlParameter[] param)
{
Open();
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = cmd;
DataSet dataset = new DataSet();
adapter.Fill(dataset);
Close();
return dataset;
}
public DataTable GetDataTable(String SqlString, SqlParameter[] param)
{
DataSet dataset = GetDataSet(SqlString, param);
dataset.CaseSensitive = false;
return dataset.Tables[0];
}
public int ExecuteSQL(string SqlString, SqlParameter[] param)
{
Open();
try
{
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
return cmd.ExecuteNonQuery();
}
catch (Exception e)
{
throw e;
}
finally
{
Close();
}
}
public int ExecuteSQL(String[] SqlStrings, SqlParameter[][] param)
{
int count = -1;
Open();
SqlCommand cmd = new SqlCommand();
SqlTransaction trans = Connection.BeginTransaction();
cmd.Connection = Connection;
cmd.Transaction = trans;
try
{
int i = 0;
foreach (String str in SqlStrings)
{
cmd.CommandText = str;
cmd.Parameters.AddRange(param[i]);
count = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
i++;
}
trans.Commit();
}
catch
{
trans.Rollback();
count = -1;
}
finally
{
Close();
}
return count;
}
public SqlDataReader ExecuteReader(String SqlString, SqlParameter[] param)
{
Open();
try
{
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
SqlDataReader myReader = cmd.ExecuteReader();
return myReader;
}
catch (Exception e)
{
throw e;
}
}
public int ExecuteScalar(string SqlString, SqlParameter[] param)
{
Open();
try
{
SqlCommand cmd = new SqlCommand(SqlString, Connection);
if (param != null)
{
cmd.Parameters.AddRange(param);
}
object o = cmd.ExecuteScalar();
return int.Parse(o.ToString());
}
catch (Exception e)
{
throw e;
}
}
}
----------------------------------------------------------------------------------------------
Default3.aspx
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<mce:script type="text/javascript" language="javascript"><!--
function DoCheck()
{
var inputs = document.getElementById("mytable").getElementsByTagName("input");
for (var i=0; i < inputs.length; i++)
if (inputs[i].type == 'checkbox')
{
inputs[i].checked = document.getElementById("chkall").checked;
}
}
// --></mce:script>
<mce:style type="text/css"><!--
#mytable { padding: 0; margin: 0; border-collapse:collapse;}
td { border: 1px solid #C1DAD7; background: #fff; font-size:12px; padding: 6px 6px 6px 12px; color: #4f6b72;}
td.alt { background: #F5FAFA; color: #797268;}
--></mce:style><style type="text/css" mce_bogus="1"> #mytable { padding: 0; margin: 0; border-collapse:collapse;}
td { border: 1px solid #C1DAD7; background: #fff; font-size:12px; padding: 6px 6px 6px 12px; color: #4f6b72;}
td.alt { background: #F5FAFA; color: #797268;}
</style>
</head>
<body>
<form id="form1" runat="server">
姓名：<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<asp:HiddenField runat="server" ID="hfIDEdit" />
<br />
电话：<asp:TextBox ID="txtPhone" runat="server"></asp:TextBox><br />
地址：<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox><br />
<asp:Button ID="btnAdd" runat="server" Text="添加" OnClick="btnAdd_Click" />
<asp:Label ID="lblMsg" runat="server" Text=""></asp:Label><br />
==================================================================<br />
输入姓名：<asp:TextBox ID="txtSearchName" runat="server"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="搜索" OnClick="btnSearch_Click" />
<asp:Repeater runat="server" ID="rptUsers" OnItemCommand="rptUsers_ItemCommand" >
<HeaderTemplate>
<table width="500" id="mytable" cellspacing="0">
<tr>
<td class="alt"></td>
<td class="alt"> ID</td>
<td class="alt">姓名</td>
<td class="alt"> 电话</td>
<td class="alt">地址</td>
<td class="alt"></td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td> <asp:CheckBox ID="chkDel" runat="server" /> </td>
<td>
<%#Eval("ID") %>
<asp:HiddenField runat="server" ID="hfID" Value='<%#Eval("ID") %>' />
<asp:HiddenField runat="server" ID="hfName" Value='<%#Eval("Name") %>' />
<asp:HiddenField runat="server" ID="hfPhone" Value='<%#Eval("Phone") %>' />
<asp:HiddenField runat="server" ID="hfAddress" Value='<%#Eval("Address") %>' />
</td>
<td>
<%#Eval("Name") %>
</td>
<td>
<%#Eval("Phone") %>
</td>
<td>
<%#Eval("Address") %>
</td>
<td>
<asp:LinkButton ID="BtnEdit" CommandName="btnEdit" runat="server">编辑</asp:LinkButton>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
<input type="checkbox" id="chkall" name="chkall" value="on" οnclick="DoCheck();">全选
<asp:Button runat="server" ID="btnDel" Text="删除" OnClick="btnDel_Click" />
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<mce:script type="text/javascript" language="javascript"><!--
function DoCheck()
{
var inputs = document.getElementById("mytable").getElementsByTagName("input");
for (var i=0; i < inputs.length; i++)
if (inputs[i].type == 'checkbox')
{
inputs[i].checked = document.getElementById("chkall").checked;
}
}
// --></mce:script>
<mce:style type="text/css"><!--
#mytable { padding: 0; margin: 0; border-collapse:collapse;}
td { border: 1px solid #C1DAD7; background: #fff; font-size:12px; padding: 6px 6px 6px 12px; color: #4f6b72;}
td.alt { background: #F5FAFA; color: #797268;}
--></mce:style><style type="text/css" mce_bogus="1"> #mytable { padding: 0; margin: 0; border-collapse:collapse;}
td { border: 1px solid #C1DAD7; background: #fff; font-size:12px; padding: 6px 6px 6px 12px; color: #4f6b72;}
td.alt { background: #F5FAFA; color: #797268;}
</style>
</head>
<body>
<form id="form1" runat="server">
姓名：<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<asp:HiddenField runat="server" ID="hfIDEdit" />
<br />
电话：<asp:TextBox ID="txtPhone" runat="server"></asp:TextBox><br />
地址：<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox><br />
<asp:Button ID="btnAdd" runat="server" Text="添加" OnClick="btnAdd_Click" />
<asp:Label ID="lblMsg" runat="server" Text=""></asp:Label><br />
==================================================================<br />
输入姓名：<asp:TextBox ID="txtSearchName" runat="server"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="搜索" OnClick="btnSearch_Click" />
<asp:Repeater runat="server" ID="rptUsers" OnItemCommand="rptUsers_ItemCommand" >
<HeaderTemplate>
<table width="500" id="mytable" cellspacing="0">
<tr>
<td class="alt"></td>
<td class="alt"> ID</td>
<td class="alt">姓名</td>
<td class="alt"> 电话</td>
<td class="alt">地址</td>
<td class="alt"></td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td> <asp:CheckBox ID="chkDel" runat="server" /> </td>
<td>
<%#Eval("ID") %>
<asp:HiddenField runat="server" ID="hfID" Value='<%#Eval("ID") %>' />
<asp:HiddenField runat="server" ID="hfName" Value='<%#Eval("Name") %>' />
<asp:HiddenField runat="server" ID="hfPhone" Value='<%#Eval("Phone") %>' />
<asp:HiddenField runat="server" ID="hfAddress" Value='<%#Eval("Address") %>' />
</td>
<td>
<%#Eval("Name") %>
</td>
<td>
<%#Eval("Phone") %>
</td>
<td>
<%#Eval("Address") %>
</td>
<td>
<asp:LinkButton ID="BtnEdit" CommandName="btnEdit" runat="server">编辑</asp:LinkButton>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
<input type="checkbox" id="chkall" name="chkall" value="on" οnclick="DoCheck();">全选
<asp:Button runat="server" ID="btnDel" Text="删除" OnClick="btnDel_Click" />
</form>
</body>
</html>
----------------------------------------------------------------------------------------------
Default3.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class Default3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
btnDel.Attributes.Add("onclick", "return confirm('确定进行删除操作吗？');");
BindGV();
}
}
void BindGV()
{
DataBase db = new DataBase();
DataSet ds = db.GetDataSet("select * from Users a inner join UsersDetail b on a.ID=b.UserId", null);
rptUsers.DataSource = ds;
rptUsers.DataBind();
}
protected void btnAdd_Click(object sender, EventArgs e)
{
DataBase db = new DataBase();
if (btnAdd.Text == "添加")
{
SqlParameter[] Params = new SqlParameter[1];
Params[0] = db.MakeParam("@Name", SqlDbType.VarChar, 20, txtName.Text);
string sql = "insert into Users(Name) values(@Name);select @@identity;";
int UserId = db.ExecuteScalar(sql, Params);
SqlParameter[] Params2 = new SqlParameter[3];
Params2[0] = db.MakeParam("@UserId", SqlDbType.Int, 4, UserId);
Params2[1] = db.MakeParam("@Phone", SqlDbType.VarChar, 20, txtPhone.Text);
Params2[2] = db.MakeParam("@Address", SqlDbType.VarChar, 50, txtAddress.Text);
string sql2 = "insert into UsersDetail(UserId,Phone,Address) values(@UserId,@Phone,@Address)";
if (db.ExecuteSQL(sql2, Params2) > 0)
{
lblMsg.Text = "信息添加成功!";
BindGV();
}
else
{
lblMsg.Text = "信息添加失败!";
}
}
else
{
SqlParameter[][] Params = new SqlParameter[2][];
SqlParameter[] Params1 = new SqlParameter[2];
Params1[0] = db.MakeParam("@ID", SqlDbType.Int, 4, int.Parse(hfIDEdit.Value));
Params1[1] = db.MakeParam("@Name", SqlDbType.VarChar, 20, txtName.Text);
SqlParameter[] Params2 = new SqlParameter[3];
Params2[0] = db.MakeParam("@UserId", SqlDbType.Int, 4, int.Parse(hfIDEdit.Value));
Params2[1] = db.MakeParam("@Phone", SqlDbType.VarChar, 20, txtPhone.Text);
Params2[2] = db.MakeParam("@Address", SqlDbType.VarChar, 50, txtAddress.Text);
Params[0] = Params1;
Params[1] = Params2;
string sql1 = "update Users set Name=@Name where ID=@ID";
string sql2 = "update UsersDetail set Phone=@Phone,Address=@Address where UserId=@UserId";
string[] sql = { sql1, sql2 };
if (db.ExecuteSQL(sql, Params) > 0)
{
lblMsg.Text = "信息修改成功！";
txtName.Text = txtPhone.Text = txtAddress.Text = "";
btnAdd.Text = "添加";
BindGV();
}
else
{
lblMsg.Text = "信息修改失败！";
}
}
}
protected void btnSearch_Click(object sender, EventArgs e)
{
DataBase db = new DataBase();
SqlParameter[] Params = new SqlParameter[1];
Params[0] = db.MakeParam("@Name", SqlDbType.VarChar, 20, txtSearchName.Text);
string sql = "select * from Users a inner join UsersDetail b on a.ID=b.UserId where a.Name=@Name";
DataSet ds = db.GetDataSet(sql, Params);
rptUsers.DataSource = ds;
rptUsers.DataBind();
}
protected void btnDel_Click(object sender, EventArgs e)
{
DataBase db = new DataBase();
int num = 0;
for (int i = 0; i < rptUsers.Items.Count; i++)
{
HiddenField hfID = (HiddenField)rptUsers.Items[i].FindControl("hfID");
CheckBox chkDel = (CheckBox)rptUsers.Items[i].FindControl("chkDel");
if (chkDel.Checked)
{
num++;
SqlParameter[][] Params = new SqlParameter[2][];
SqlParameter[] Params1 = new SqlParameter[1];
Params1[0] = db.MakeParam("@ID", SqlDbType.Int, 4, int.Parse(hfID.Value));
SqlParameter[] Params2 = new SqlParameter[1];
Params2[0] = db.MakeParam("@UserId", SqlDbType.Int, 4, int.Parse(hfID.Value));
Params[0] = Params1;
Params[1] = Params2;
string sql1 = "delete from Users where ID=@ID";
string sql2 = "delete from UsersDetail where UserId=@UserId";
string[] sql = { sql1, sql2 };
db.ExecuteSQL(sql, Params);
}
}
if (num > 0)
{
BindGV();
this.ClientScript.RegisterClientScriptBlock(this.GetType(), "script", "alert('成功删除了！" + num + "条数据');", true);
}
else
{
this.ClientScript.RegisterClientScriptBlock(this.GetType(), "script", "alert('没有选择数据！');", true);
}
}
protected void rptUsers_ItemCommand(object source, RepeaterCommandEventArgs e)
{
HiddenField hfID = (HiddenField)e.Item.FindControl("hfID");
HiddenField hfName = (HiddenField)e.Item.FindControl("hfName");
HiddenField hfPhone = (HiddenField)e.Item.FindControl("hfPhone");
HiddenField hfAddress = (HiddenField)e.Item.FindControl("hfAddress");
switch (e.CommandName)
{
case "btnEdit":
btnAdd.Text = "编辑";
hfIDEdit.Value = hfID.Value;
txtName.Text = hfName.Value;
txtPhone.Text = hfPhone.Value;
txtAddress.Text = hfAddress.Value;
break;
}
}
}
转载于:https://www.cnblogs.com/xiachufeng/archive/2010/07/28/1786682.html
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