📄 storequantity.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace login
{
public partial class storequantity : Form
{
public storequantity()
{
InitializeComponent();
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
private void storequantity_Load(object sender, EventArgs e)
{
// TODO: 这行代码将数据加载到表“wZGL_20052070DataSet.room”中。您可以根据需要移动或移除它。
this.roomTableAdapter.Fill(this.wZGL_20052070DataSet.room);
// TODO: 这行代码将数据加载到表“wZGL_20052070_DataDataSet.room”中。您可以根据需要移动或移除它。
//this.roomTableAdapter.Fill(this.wZGL_20052070_DataDataSet.room);
// TODO: 这行代码将数据加载到表“wZGL_20052070_DataDataSet.room”中。您可以根据需要移动或移除它。
//this.roomTableAdapter.Fill(this.wZGL_20052070_DataDataSet.room);
}
private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=localhost;Initial Catalog=WZGL_20052070;Integrated Security=true;");
string sqltext = "select pName from room where storaeg=@storaeg";
SqlCommand storescom= new SqlCommand(sqltext, conn);
SqlDataAdapter sa = new SqlDataAdapter();
sa.SelectCommand = storescom;
DataSet ds = new DataSet();
sa.Fill(ds);
comboBox2.DataSource = ds.Tables["room"];
}
private void button1_Click_1(object sender, EventArgs e)
{
//MainFrm mainform = new MainFrm();
//mainform.Show();
//this.Hide();
this.Close();
}
private void button2_Click(object sender, EventArgs e)
{
//MainFrm mainform = new MainFrm();
//mainform.Show();
//this.Hide();
this.Close();
}
private string strconn;//查询更新数据库字符串。
private string connstr = "workstation id=localhost;Integrated Security=SSPI;database=WZGL_20052070";
private SqlDataAdapter sqlda;//查询数据库时使用的适配器。
private DataSet dset = new DataSet();//保存查询结果的数据集。
private SqlConnection myconn;//数据库连接。
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
}
private void button3_Click(object sender, EventArgs e)
{
strconn = "select *,quantity*qPrice as allqPrice from room";
myconn = new SqlConnection(connstr);
sqlda = new SqlDataAdapter(strconn, myconn);
dset.Clear();
sqlda.Fill(dset, "room");
dataGridView1.DataSource = dset.Tables[0];
}
private void 查询ToolStripButton_Click(object sender, EventArgs e)
{
try
{
this.roomTableAdapter.查询(this.wZGL_20052070DataSet.room, toolStripComboBox1.Text);
}
catch (System.Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}
}
private void comboBox2_SelectedIndexChanged_1(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=localhost;Initial Catalog=WZGL_20052070;Integrated Security=sspi;");
string sqlTextcom = "SELECT str(quantity*qPrice) FROM room where pName=@产品名称";
conn.Open();
SqlCommand sqlcmdcom = new SqlCommand(sqlTextcom, conn);
sqlcmdcom.Parameters.AddWithValue("@产品名称", comboBox2.Text);
SqlDataReader sqldrcom = sqlcmdcom.ExecuteReader();
sqldrcom.Read();
while (sqldrcom.Read())
{
textBox3.Text.Equals(sqldrcom.GetValue(0).ToString());
}
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void textBox2_TextChanged(object sender, EventArgs e)
{
}
private void textBox3_TextChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=localhost;Initial Catalog=WZGL_20052070;Integrated Security=sspi;");
string sqlTextcom = "SELECT quantity*qPrice FROM room where pName=@产品名称";
conn.Open();
SqlCommand sqlcmdcom = new SqlCommand(sqlTextcom, conn);
sqlcmdcom.Parameters.AddWithValue("@产品名称", comboBox2.Text);
SqlDataReader sqldrcom = sqlcmdcom.ExecuteReader();
sqldrcom.Read();
while (sqldrcom.Read())
{
textBox3.Text.Equals(sqldrcom.GetValue(0));
}
}
}
}
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