正文

c#操作sql server2008 的界面实例代码

︶ㄣSDDLL学院 メ
SDDLL学院V管理员 / 阅读
0708
这篇文章主要介绍了c#操作sql server2008 的界面实例代码,非常不错，具有参考借鉴价值，需要的朋友可以参考下

这篇文章主要介绍了c#操作sql server2008 的界面实例代码,非常不错，具有参考借鉴价值，需要的朋友可以参考下

先是查询整张表，用到combobox选择查询哪张表，最后用DataGridView显示

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
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;
namespace WindowsFormsApplication2
{
  public partial class Form1 : Form
  {
    public Form1()
    {
      InitializeComponent();
    }
    private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
    {
    }
    private void Form1_Load(object sender, EventArgs e)
    {
      this.dataGridView1.RowHeadersVisible = false;
      this.dataGridView1.AllowUserToAddRows = false;
      this.dataGridView1.ReadOnly = true;
      this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
      // this.comboBox1.SelectedIndex =0;
      string sql = "select * from student";
      DataTable table = SqlManage.TableSelect(sql);
      this.dataGridView1.DataSource = table;
      comboBox1.Items.Add("学生表");
      comboBox1.Items.Add("教师表");
    }
    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
      string sql = "";
      switch (this.comboBox1.SelectedIndex)
      { 
        case 0:
          sql = "select id as 学生号,name as 姓名,sage as 年龄 from student";
          break;
        case 1:
          sql = "select t_id as 教师号,t_name as 姓名,T_age as 年龄 from teacher";
          break;
        default:
          break;
      }
      DataTable table = SqlManage.TableSelect(sql);
      this.dataGridView1.DataSource = table;
    }
  }
}

然后是修改表格，这个比较简单，用到textbox和button

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
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;
namespace WindowsFormsApplication2
{
  public partial class Form2 : Form
  {
    public Form2()
    {
      InitializeComponent();
    }
    private void button4_Click(object sender, EventArgs e)
    {
      this.Close();
    }
    private void button1_Click(object sender, EventArgs e)
    {
      string sql = string.Format("insert into teacher values('{0}','{1}','{2}')",
              this.textBox1.Text, this.textBox2.Text, this.textBox3.Text);
      SqlManage.TableChange(sql);
    }
    private void button2_Click(object sender, EventArgs e)
    {
      string sql = string.Format("update teacher set ('{0}',''{1}'','{2}')",
              this.textBox1.Text, this.textBox2.Text, this.textBox3.Text);
      SqlManage.TableChange(sql);
    }
    private void button3_Click(object sender, EventArgs e)
    {
      string sql = string.Format("delete from teacher where t_id='{0}'",
              this.textBox1.Text);
      SqlManage.TableChange(sql);
    }
    private void Form2_Load(object sender, EventArgs e)
    {
    }
  }
}

按条件查询表格，这个是核心，用到radiobutt，combobox,，button， DataGridView

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
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;
namespace WindowsFormsApplication2
{
  public partial class Form3 : Form
  {
    public Form3()
    {
      InitializeComponent();
    }
    private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
    {
    }
    private void Form3_Load(object sender, EventArgs e)
    {
      this.comboBox1.Enabled = false;
      this.comboBox2.Enabled = false;
      this.comboBox3.Enabled = false;
      this.comboBox4.Enabled = false;
      //初始化教师编号
      string sql = "select t_id from teacher";
      DataTable table = SqlManage.TableSelect(sql);
      string t_id;
      foreach (DataRow row in table.Rows)
      {
        t_id = row["t_id"].ToString();
        this.comboBox1.Items.Add(t_id);
      }
      if (table.Rows.Count > 0)
      {
        this.comboBox1.SelectedIndex = 0;
      }
      //初始化教师姓名
      string sql_name = "select t_name from teacher";
      table.Clear();
      table = SqlManage.TableSelect(sql_name);
      string t_name;
      foreach (DataRow row in table.Rows)
      {
        t_name= row["t_name"].ToString();
        this.comboBox2.Items.Add(t_name);
      }
      if (table.Rows.Count > 0)
      {
        this.comboBox2.SelectedIndex = 0;
      }
      //初始化学生
      string sql_id = "select id from student";
      table.Clear();
      table = SqlManage.TableSelect(sql_id);
      string s_id;
      foreach (DataRow row in table.Rows)
      {
        s_id = row["id"].ToString();
        this.comboBox3.Items.Add(s_id);
      }
      if (table.Rows.Count > 0)
      {
        this.comboBox3.SelectedIndex = 0;
      }
      //初始化学生
      string sql_sname = "select name from student";
      table.Clear();
      table = SqlManage.TableSelect(sql_sname);
      string t_sname;
      foreach (DataRow row in table.Rows)
      {
        t_sname = row["name"].ToString();
        this.comboBox4.Items.Add(t_sname);
      }
      if (table.Rows.Count > 0)
      {
        this.comboBox4.SelectedIndex = 0;
      }
    }
    private void button2_Click(object sender, EventArgs e)
    {
      this.Close();
    }
    private void button1_Click(object sender, EventArgs e)
    {
      string sql = "";
      if (this.radioButton1.Checked)
      {
        sql = string.Format("select t_id as 教师编号,t_name as 教师姓名,t_age as 年龄 from teacher where t_id = '{0}'",
          this.comboBox1.Text);
      }
      else if (this.radioButton2.Checked)
      {
        sql = string.Format("select t_id as 教师编号,t_name as 教师姓名,t_age as 年龄 from teacher where t_name = '{0}'",
          this.comboBox2.Text);
      }
      else if (this.radioButton3.Checked)
      {
        sql = string.Format("select id as 学生编号,name as 学生姓名,sage as 年龄 from student where id = '{0}'",
          this.comboBox3.Text);
      }
      else if (this.radioButton4.Checked)
      {
        sql = string.Format("select id as 学生编号,name as 学生姓名,sage as 年龄 from student where name = '{0}'",
          this.comboBox4.Text);
      }
      DataTable table = SqlManage.TableSelect(sql);
      if (table.Rows.Count > 0)
      {
        this.dataGridView1.DataSource = table;
      }
      else
      {
        MessageBox.Show("没有相关内容");
      }
    }
    private void radioButton1_CheckedChanged(object sender, EventArgs e)
    {
      if (this.radioButton1.Checked)
      {
        this.comboBox1.Enabled = true;
      }
      else
      {
        this.comboBox1.Enabled = false;
      }
    }
    private void radioButton2_CheckedChanged(object sender, EventArgs e)
    {
      if (this.radioButton2.Checked)
      {
        this.comboBox2.Enabled = true;
      }
      else
      {
        this.comboBox2.Enabled = false;
      }
    }
    private void radioButton3_CheckedChanged(object sender, EventArgs e)
    {
      if (this.radioButton3.Checked)
      {
        this.comboBox3.Enabled = true;
      }
      else
      {
        this.comboBox3.Enabled = false;
      }
    }
    private void radioButton4_CheckedChanged(object sender, EventArgs e)
    {
      if (this.radioButton4.Checked)
      {
        this.comboBox4.Enabled = true;
      }
      else
      {
        this.comboBox4.Enabled = false;
      }
    }
  }
}

以上所述是小编给大家介绍的c#操作sql server2008 的界面实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对米米素材网网站的支持！

原文链接：http://blog.csdn.net/sun_boy_01/article/details/62037071