tbookclass.cs

图书馆管理系统为方便读者

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

namespace 图书管理系统
{
	/// <summary>
	/// TbookClass 的摘要说明。
	/// </summary>
	public class TbookClass : System.Windows.Forms.Form
	{
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.GroupBox groupBox2;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.TextBox textBox5;
		private System.Windows.Forms.TextBox textBox6;
		private System.Windows.Forms.Label label7;
		private System.Windows.Forms.Label label8;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public TbookClass()
		{
			//
			// 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.groupBox1 = new System.Windows.Forms.GroupBox();
			this.label8 = new System.Windows.Forms.Label();
			this.label7 = new System.Windows.Forms.Label();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.label6 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.groupBox2 = new System.Windows.Forms.GroupBox();
			this.textBox6 = new System.Windows.Forms.TextBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.label3 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.textBox5 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.groupBox1.SuspendLayout();
			this.groupBox2.SuspendLayout();
			this.SuspendLayout();
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.label8);
			this.groupBox1.Controls.Add(this.label7);
			this.groupBox1.Controls.Add(this.textBox4);
			this.groupBox1.Controls.Add(this.label6);
			this.groupBox1.Controls.Add(this.label5);
			this.groupBox1.Controls.Add(this.label4);
			this.groupBox1.Controls.Add(this.groupBox2);
			this.groupBox1.Controls.Add(this.textBox3);
			this.groupBox1.Controls.Add(this.textBox2);
			this.groupBox1.Controls.Add(this.label3);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Controls.Add(this.textBox1);
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Controls.Add(this.textBox5);
			this.groupBox1.Location = new System.Drawing.Point(8, 16);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(296, 296);
			this.groupBox1.TabIndex = 0;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "书籍类别";
			// 
			// label8
			// 
			this.label8.Location = new System.Drawing.Point(248, 136);
			this.label8.Name = "label8";
			this.label8.Size = new System.Drawing.Size(24, 21);
			this.label8.TabIndex = 15;
			this.label8.Text = "年";
			// 
			// label7
			// 
			this.label7.Location = new System.Drawing.Point(248, 109);
			this.label7.Name = "label7";
			this.label7.Size = new System.Drawing.Size(24, 16);
			this.label7.TabIndex = 14;
			this.label7.Text = "天";
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(144, 104);
			this.textBox4.Name = "textBox4";
			this.textBox4.Size = new System.Drawing.Size(96, 21);
			this.textBox4.TabIndex = 12;
			this.textBox4.Text = "";
			// 
			// label6
			// 
			this.label6.Location = new System.Drawing.Point(16, 136);
			this.label6.Name = "label6";
			this.label6.Size = new System.Drawing.Size(100, 16);
			this.label6.TabIndex = 11;
			this.label6.Text = "有效期：";
			// 
			// label5
			// 
			this.label5.Location = new System.Drawing.Point(16, 104);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(100, 16);
			this.label5.TabIndex = 10;
			this.label5.Text = "借书天数：";
			// 
			// label4
			// 
			this.label4.Location = new System.Drawing.Point(248, 77);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(24, 16);
			this.label4.TabIndex = 9;
			this.label4.Text = "本";
			// 
			// groupBox2
			// 
			this.groupBox2.Controls.Add(this.textBox6);
			this.groupBox2.Location = new System.Drawing.Point(8, 168);
			this.groupBox2.Name = "groupBox2";
			this.groupBox2.Size = new System.Drawing.Size(272, 112);
			this.groupBox2.TabIndex = 8;
			this.groupBox2.TabStop = false;
			this.groupBox2.Text = "备注";
			// 
			// textBox6
			// 
			this.textBox6.Location = new System.Drawing.Point(8, 16);
			this.textBox6.Multiline = true;
			this.textBox6.Name = "textBox6";
			this.textBox6.Size = new System.Drawing.Size(256, 88);
			this.textBox6.TabIndex = 14;
			this.textBox6.Text = "";
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(144, 72);
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(96, 21);
			this.textBox3.TabIndex = 6;
			this.textBox3.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(144, 48);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(120, 21);
			this.textBox2.TabIndex = 5;
			this.textBox2.Text = "";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(16, 72);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(100, 16);
			this.label3.TabIndex = 3;
			this.label3.Text = "借书数目：";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(16, 48);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(100, 16);
			this.label2.TabIndex = 2;
			this.label2.Text = "类别名称：";
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(144, 24);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(120, 21);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(16, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(100, 16);
			this.label1.TabIndex = 0;
			this.label1.Text = "类别编号：";
			// 
			// textBox5
			// 
			this.textBox5.Location = new System.Drawing.Point(144, 136);
			this.textBox5.Name = "textBox5";
			this.textBox5.Size = new System.Drawing.Size(96, 21);
			this.textBox5.TabIndex = 13;
			this.textBox5.Text = "";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(112, 320);
			this.button1.Name = "button1";
			this.button1.TabIndex = 1;
			this.button1.Text = "确定";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(216, 320);
			this.button2.Name = "button2";
			this.button2.TabIndex = 2;
			this.button2.Text = "取消";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// TbookClass
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(320, 350);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.groupBox1);
			this.Name = "TbookClass";
			this.Text = "添加书籍种类";
			this.groupBox1.ResumeLayout(false);
			this.groupBox2.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		private void label4_Click(object sender, System.EventArgs e)
		{
		
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			if(textBox1.Text !=""&&textBox2.Text !="")
			{
				string cstring="data source =222.20.54.54;initial catalog =yuan;user id =sa ;password=0517";
				SqlConnection conn=new SqlConnection ();
				conn.ConnectionString =cstring;
			    
				string cmdstring="insert Tbookclass values(";
				cmdstring+="'"+textBox1.Text+"'," ;
				cmdstring+="'"+textBox2.Text+"'," ;
				cmdstring+="'"+textBox3.Text+"'," ;
				cmdstring+="'"+textBox4.Text+"'," ;
				cmdstring+="'"+textBox5.Text+"'," ;
				cmdstring+="'"+textBox6.Text+"')" ;
				
				
				SqlCommand cmd=new SqlCommand ();
				cmd.CommandText =cmdstring;
				cmd.Connection =conn;
				conn.Open ();
               
				SqlCommand cmd2=new SqlCommand ();
				cmd2.CommandText ="select * from Tbookclass where classno="+"'"+textBox1.Text +"'";
				cmd2.Connection =conn;
                
				int i=0;
				//conn.Open ();
				SqlDataReader rdr =cmd2.ExecuteReader ();
				if(rdr.Read ())
				{
					i+=1;
				}
				
				if(i>=1)
				{
					MessageBox.Show ("对不起，您输入的书籍类别号已经存在!");
					textBox1.Text ="";
					
				}
				else
				{   
					conn.Close ();
					conn.Open ();
					cmd.ExecuteNonQuery ();
					MessageBox.Show ("已经成功的添加到了数据库 ！");
				}
				
				//cmd.ExecuteNonQuery ();
				conn.Close ();
			}
			else
			{
				MessageBox.Show ("第一项和第二项不能为空！请将其填满");
			}

		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			this.Close ();
		}
	}
}