【发布时间】:2014-04-09 18:56:51
【问题描述】:
我有一个使用 Windows 窗体的程序。这是一个库存程序,可以让我跟踪各种物品的库存。我在主页上显示了一个 DataGridView 以及一个删除按钮。当我选择行并单击按钮时,它将从 DataGridView 中删除条目。当我刷新条目时返回。我很确定单击删除按钮时我需要与表建立连接...尝试了几种方法来做到这一点,但我似乎遗漏了一些东西,因为它不起作用。有任何想法吗? Button2_Click 是删除函数。
DGV 的主要形式:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data.Sql;
using Microsoft.Win32;
using System.Threading;
namespace WindowsFormsApplication2
{
public partial class Main : Form
{
public Main()
{
InitializeComponent();
}
private void Main_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'userLoginDataSet.WeaponData' table. You can move, or remove it, as needed.
this.weaponDataTableAdapter.Fill(this.userLoginDataSet.WeaponData);
}
private void button1_Click(object sender, EventArgs e)
{
AddWeapon aw = new AddWeapon(); // pass this, the main form
aw.Show();
}
private void button3_Click(object sender, EventArgs e)
{
//Refresh weaponList DataGridView to show latest updates.
SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\brmcbrid\Documents\Visual Studio 2010\Projects\WindowsFormsApplication2\WindowsFormsApplication2\UserLogin.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");
string query = "select * from WeaponData";
SqlCommand cmd = new SqlCommand(query, con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
weaponList.DataSource = dt;
}
private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
Close();
}
private void button2_Click(object sender, EventArgs e)
{
foreach (DataGridViewRow item in this.weaponList.SelectedRows)
{
weaponList.Rows.RemoveAt(item.Index);
}
}
}
}
【问题讨论】:
标签: c# sql datagridview