实例介绍
【实例简介】实现了 用户主表和 从表图书表 之间的联动，具体操作如下：点击左侧用户名(listbox) 即可 在右侧文本框 加载用户信息，并在下面的datagrid加载用户的图书信息,该实例附完整源码以及数据库
【实例截图】
【核心代码】
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 | using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;namespace DataBase4{ /// <summary> /// 主控明细数据库显示。 /// </summary> public class Form1 : System.Windows.Forms.Form { private System.Data.OleDb.OleDbDataAdapter oleDbDataAdapter1; private System.Data.OleDb.OleDbCommand oleDbSelectCommand1; private System.Data.OleDb.OleDbCommand oleDbInsertCommand1; private System.Data.OleDb.OleDbCommand oleDbUpdateCommand1; private System.Data.OleDb.OleDbCommand oleDbDeleteCommand1; private System.Data.OleDb.OleDbConnection oleDbConnection1; private System.Data.OleDb.OleDbDataAdapter oleDbDataAdapter2; private System.Data.OleDb.OleDbCommand oleDbSelectCommand2; private System.Data.OleDb.OleDbCommand oleDbInsertCommand2; private DataBase4.DataSet1 dataSet11; private System.Windows.Forms.Label label1; private System.Windows.Forms.Label label2; private System.Windows.Forms.TextBox textBox1; private System.Windows.Forms.Label label3; private System.Windows.Forms.TextBox textBox2; private System.Windows.Forms.Label label4; private System.Windows.Forms.DataGrid dataGrid1; private System.Windows.Forms.ListBox listBox1; /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.Container components = null; public Form1() { // // 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 Form Designer generated code /// <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.oleDbDataAdapter1 = new System.Data.OleDb.OleDbDataAdapter(); this.oleDbDeleteCommand1 = new System.Data.OleDb.OleDbCommand(); this.oleDbConnection1 = new System.Data.OleDb.OleDbConnection(); this.oleDbInsertCommand1 = new System.Data.OleDb.OleDbCommand(); this.oleDbSelectCommand1 = new System.Data.OleDb.OleDbCommand(); this.oleDbUpdateCommand1 = new System.Data.OleDb.OleDbCommand(); this.oleDbDataAdapter2 = new System.Data.OleDb.OleDbDataAdapter(); this.oleDbInsertCommand2 = new System.Data.OleDb.OleDbCommand(); this.oleDbSelectCommand2 = new System.Data.OleDb.OleDbCommand(); this.dataSet11 = new DataBase4.DataSet1(); this.label1 = new System.Windows.Forms.Label(); this.label2 = new System.Windows.Forms.Label(); this.textBox1 = new System.Windows.Forms.TextBox(); this.label3 = new System.Windows.Forms.Label(); this.textBox2 = new System.Windows.Forms.TextBox(); this.label4 = new System.Windows.Forms.Label(); this.dataGrid1 = new System.Windows.Forms.DataGrid(); this.listBox1 = new System.Windows.Forms.ListBox(); ((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit(); ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit(); this.SuspendLayout(); // // oleDbDataAdapter1 // this.oleDbDataAdapter1.DeleteCommand = this.oleDbDeleteCommand1; this.oleDbDataAdapter1.InsertCommand = this.oleDbInsertCommand1; this.oleDbDataAdapter1.SelectCommand = this.oleDbSelectCommand1; this.oleDbDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] { new System.Data.Common.DataTableMapping("Table", "user", new System.Data.Common.DataColumnMapping[] { new System.Data.Common.DataColumnMapping("username", "username"), new System.Data.Common.DataColumnMapping("Email", "Email"), new System.Data.Common.DataColumnMapping("address", "address")})}); this.oleDbDataAdapter1.UpdateCommand = this.oleDbUpdateCommand1; // // oleDbDeleteCommand1 // this.oleDbDeleteCommand1.CommandText = "DELETE FROM [user] WHERE (username = ?) AND (Email = ? OR ? IS NULL AND Email IS " "NULL) AND (address = ? OR ? IS NULL AND address IS NULL)"; this.oleDbDeleteCommand1.Connection = this.oleDbConnection1; this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_username", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "username", System.Data.DataRowVersion.Original, null)); this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null)); this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null)); this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null)); this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null)); // // oleDbConnection1 // //this.oleDbConnection1.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Password="""";User ID=Admin;Data Source=E:\Project\DataBase4\bin\Debug\test.mdb;Mode=Share Deny None;Extended Properties="""";Jet OLEDB:System database="""";Jet OLEDB:Registry Path="""";Jet OLEDB:Database Password="""";Jet OLEDB:Engine Type=5;Jet OLEDB:Database Locking Mode=1;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password="""";Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don't Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Jet OLEDB:SFP=False"; this.oleDbConnection1.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Password="""";User ID=Admin;Data Source=" System.Windows.Forms.Application.StartupPath @"\test.mdb;Mode=Share Deny None;Extended Properties="""";Jet OLEDB:System database="""";Jet OLEDB:Registry Path="""";Jet OLEDB:Database Password="""";Jet OLEDB:Engine Type=5;Jet OLEDB:Database Locking Mode=1;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password="""";Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don't Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Jet OLEDB:SFP=False"; // // oleDbInsertCommand1 // this.oleDbInsertCommand1.CommandText = "INSERT INTO [user] (username, Email, address) VALUES (?, ?, ?)"; this.oleDbInsertCommand1.Connection = this.oleDbConnection1; this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("username", System.Data.OleDb.OleDbType.VarWChar, 20, "username")); this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Email", System.Data.OleDb.OleDbType.VarWChar, 50, "Email")); this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("address", System.Data.OleDb.OleDbType.VarWChar, 50, "address")); // // oleDbSelectCommand1 // this.oleDbSelectCommand1.CommandText = "SELECT username, Email, address FROM [user]"; this.oleDbSelectCommand1.Connection = this.oleDbConnection1; // // oleDbUpdateCommand1 // this.oleDbUpdateCommand1.CommandText = "UPDATE [user] SET username = ?, Email = ?, address = ? WHERE (username = ?) AND (" "Email = ? OR ? IS NULL AND Email IS NULL) AND (address = ? OR ? IS NULL AND addr" "ess IS NULL)"; this.oleDbUpdateCommand1.Connection = this.oleDbConnection1; this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("username", System.Data.OleDb.OleDbType.VarWChar, 20, "username")); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Email", System.Data.OleDb.OleDbType.VarWChar, 50, "Email")); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("address", System.Data.OleDb.OleDbType.VarWChar, 50, "address")); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_username", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "username", System.Data.DataRowVersion.Original, null)); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null)); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null)); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null)); this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null)); // // oleDbDataAdapter2 // this.oleDbDataAdapter2.InsertCommand = this.oleDbInsertCommand2; this.oleDbDataAdapter2.SelectCommand = this.oleDbSelectCommand2; this.oleDbDataAdapter2.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] { new System.Data.Common.DataTableMapping("Table", "book", new System.Data.Common.DataColumnMapping[] { new System.Data.Common.DataColumnMapping("username", "username"), new System.Data.Common.DataColumnMapping("bookname", "bookname"), new System.Data.Common.DataColumnMapping("description", "description")})}); // // oleDbInsertCommand2 // this.oleDbInsertCommand2.CommandText = "INSERT INTO book(username, bookname, description) VALUES (?, ?, ?)"; this.oleDbInsertCommand2.Connection = this.oleDbConnection1; this.oleDbInsertCommand2.Parameters.Add(new System.Data.OleDb.OleDbParameter("username", System.Data.OleDb.OleDbType.VarWChar, 20, "username")); this.oleDbInsertCommand2.Parameters.Add(new System.Data.OleDb.OleDbParameter("bookname", System.Data.OleDb.OleDbType.VarWChar, 50, "bookname")); this.oleDbInsertCommand2.Parameters.Add(new System.Data.OleDb.OleDbParameter("description", System.Data.OleDb.OleDbType.VarWChar, 50, "description")); // // oleDbSelectCommand2 // this.oleDbSelectCommand2.CommandText = "SELECT username, bookname, description FROM book"; this.oleDbSelectCommand2.Connection = this.oleDbConnection1; // // dataSet11 // this.dataSet11.DataSetName = "DataSet1"; this.dataSet11.Locale = new System.Globalization.CultureInfo("zh-CN"); // // label1 // this.label1.AutoSize = true; this.label1.Location = new System.Drawing.Point(16, 8); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(67, 18); this.label1.TabIndex = 0; this.label1.Text = "用户名："; // // label2 // this.label2.AutoSize = true; this.label2.Location = new System.Drawing.Point(144, 48); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(52, 18); this.label2.TabIndex = 2; this.label2.Text = "地址："; // // textBox1 // this.textBox1.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.dataSet11, "user.address")); this.textBox1.Location = new System.Drawing.Point(192, 40); this.textBox1.Name = "textBox1"; this.textBox1.Size = new System.Drawing.Size(200, 25); this.textBox1.TabIndex = 3; this.textBox1.Text = ""; // // label3 // this.label3.AutoSize = true; this.label3.Location = new System.Drawing.Point(144, 104); this.label3.Name = "label3"; this.label3.Size = new System.Drawing.Size(60, 18); this.label3.TabIndex = 4; this.label3.Text = "Email："; // // textBox2 // this.textBox2.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.dataSet11, "user.Email")); this.textBox2.Location = new System.Drawing.Point(192, 96); this.textBox2.Name = "textBox2"; this.textBox2.Size = new System.Drawing.Size(200, 25); this.textBox2.TabIndex = 5; this.textBox2.Text = ""; // // label4 // this.label4.AutoSize = true; this.label4.Location = new System.Drawing.Point(16, 128); this.label4.Name = "label4"; this.label4.Size = new System.Drawing.Size(52, 18); this.label4.TabIndex = 6; this.label4.Text = "书籍："; // // dataGrid1 // this.dataGrid1.DataMember = "user.userbook"; this.dataGrid1.DataSource = this.dataSet11; this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText; this.dataGrid1.Location = new System.Drawing.Point(16, 152); this.dataGrid1.Name = "dataGrid1"; this.dataGrid1.Size = new System.Drawing.Size(376, 152); this.dataGrid1.TabIndex = 7; // // listBox1 // this.listBox1.DataSource = this.dataSet11; this.listBox1.DisplayMember = "user.username"; this.listBox1.ItemHeight = 15; this.listBox1.Location = new System.Drawing.Point(16, 32); this.listBox1.Name = "listBox1"; this.listBox1.Size = new System.Drawing.Size(120, 94); this.listBox1.TabIndex = 8; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(8, 18); this.ClientSize = new System.Drawing.Size(402, 312); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.listBox1, this.dataGrid1, this.label4, this.textBox2, this.label3, this.textBox1, this.label2, this.label1}); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; this.MaximizeBox = false; this.Name = "Form1"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "主控明细数据库显示"; this.Load = new System.EventHandler(this.Form1_Load); ((System.ComponentModel.ISupportInitialize)(this.dataSet11)).EndInit(); ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit(); this.ResumeLayout(false); } #endregion /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private void Form1_Load(object sender, System.EventArgs e) { dataSet11.Clear(); oleDbDataAdapter1.Fill(dataSet11); oleDbDataAdapter2.Fill(dataSet11); } }} |
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