sql,dataGrid,update 问题

[Yjpgyje]

int k;
string updstr="update 基本信息 set 车次='"+dataGrid1[0,0].ToString()+"',出发时间='"+dataGrid1[0,1].ToString()+"',到达时间='"+dataGrid1[0,2].ToString()+"',首发站='"+dataGrid1[0,3].ToString()+"',终点站='"+dataGrid1[0,4].ToString()+"',主要经过='"+dataGrid1[0,5].ToString().Trim()+"',备注='"+dataGrid1[0,6].ToString().Trim()+" ',全长='"+dataGrid1[0,7]+"',经过站数='"+dataGrid1[0,8]+"' where 车次='"+textBox1.Text.Trim()+"'";
string cs="initial catalog=服务器;data source=(local);integrated security=SSPI;";
SqlConnection myf=new SqlConnection(cs);
myf.Open();
SqlCommand my1=new SqlCommand();
my1.Connection=myf;
my1.CommandType=CommandType.Text;
my1.CommandText=updstr;
k=my1.ExecuteNonQuery();
各位高手,大哥大姐们,帮我看看这段代码那有问题为什么不能对数据库更新呀???

[BearRui]

首页看看你生成的SQL能不能在查询分析器中直接执行

[youngboy1983]

估计你写的SELECT错误 先在查询分析器中运行下

[Yjpgyje]

能执行呀!!
就是写不到数据库里.是不是我的update那写错了呀!!

[youngboy1983]

哎 有人打字比我快。。。

[youngboy1983]

你在数据库中的查询分析器中可以运行？

[amandag]

为什么不用参数而要拼接字符串？从哪里学的这样写？

[Yjpgyje]

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace WindowsApplication1
{
/// <summary>
/// Form6 的摘要说明。
/// </summary>
public class Form6 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
public SqlDataAdapter da1;
public DataSet ds;
public ConnectionState my1;
private System.Windows.Forms.Label label2;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;

public Form6()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows 窗体设计器生成的代码
/// <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()
{
this.textBox1 = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.label2 = new System.Windows.Forms.Label();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(152, 16);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(104, 21);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "";
//
// label1
//
this.label1.Location = new System.Drawing.Point(32, 16);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(112, 24);
this.label1.TabIndex = 1;
this.label1.Text = "您要修改的车次号";
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(16, 48);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(760, 88);
this.dataGrid1.TabIndex = 2;
//
// button1
//
this.button1.Location = new System.Drawing.Point(288, 16);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(80, 24);
this.button1.TabIndex = 3;
this.button1.Text = "找记录";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(400, 16);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(96, 24);
this.button2.TabIndex = 4;
this.button2.Text = "确定修改";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// label2
//
this.label2.Location = new System.Drawing.Point(528, 8);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(128, 32);
this.label2.TabIndex = 5;
this.label2.Text = "label2";
//
// Form6
//
this.AcceptButton = this.button1;
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(792, 149);
this.Controls.Add(this.label2);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.dataGrid1);
this.Controls.Add(this.label1);
this.Controls.Add(this.textBox1);
this.Name = "Form6";
this.Text = "修改记录";
this.Load += new System.EventHandler(this.Form6_Load);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);

}
#endregion

private void Form6_Load(object sender, System.EventArgs e)
{

}

private void button1_Click(object sender, System.EventArgs e)
{
try
{
string cs="initial catalog=服务器;data source=(local);integrated security=SSPI;";
string str="select * from 基本信息 where 车次='"+textBox1.Text+"'";
SqlConnection myf=new SqlConnection(cs);
myf.Open();
SqlCommand my1=new SqlCommand();
my1.Connection=myf;
my1.CommandType=CommandType.Text;
my1.CommandText=str;
SqlDataAdapter da1 =new SqlDataAdapter();
da1.SelectCommand=my1;
DataSet ds = new DataSet();
MessageBox.Show("以找到记录","找到提示");
da1.Fill(ds,"基本信息");
//da1列车查询系统.rar.Update(ds,"基本信息");

dataGrid1.DataSource=ds.Tables[0];
}
catch
{
MessageBox.Show("未找到记录","找到提示");
}
}

private void button2_Click(object sender, System.EventArgs e)
{
int k;
string updstr="update 基本信息 set 车次='"+dataGrid1[0,0].ToString()+"',出发时间='"+dataGrid1[0,1].ToString()+"',到达时间='"+dataGrid1[0,2].ToString()+"',首发站='"+dataGrid1[0,3].ToString()+"',终点站='"+dataGrid1[0,4].ToString()+"',主要经过='"+dataGrid1[0,5].ToString().Trim()+"',备注='"+dataGrid1[0,6].ToString().Trim()+" ',全长='"+dataGrid1[0,7]+"',经过站数='"+dataGrid1[0,8]+"' where 车次='"+textBox1.Text.Trim()+"'";
string cs="initial catalog=服务器;data source=(local);integrated security=SSPI;";
SqlConnection myf=new SqlConnection(cs);
myf.Open();
SqlCommand my1=new SqlCommand();
my1.Connection=myf;
my1.CommandType=CommandType.Text;
my1.CommandText=updstr;
k=my1.ExecuteNonQuery();
label2.Text="'"+dataGrid1[0,8].ToString()+"'";

}
}
}

这是我这个程序的所有代码,我实在是找不到那的错了.

[youngboy1983]

是页面没有改过来还是表里面没有修改 不知道你从哪学的 在NET中这样写SELECT的 如果是表里面就没有改 你最好写成参数传递 比较好找一点 如果是表改了 页面没有改 你重新绑定下就可以了

[Yjpgyje]

谢谢各位我找到错在那了.呵呵.

[majiangping]

修改完数据更新dataGrid显示区域