ICQ/即时通讯

开发平台：
C#

friend.cs：源码内容
							using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace qq
{
	/// <summary>
	/// friend 的摘要说明。
	/// </summary>
	public class friend : System.Windows.Forms.Form
	{
		
		Form1 form;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.DataGrid dataGrid1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
		public friend(Form1 f)
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			form=f;
		
			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.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
			this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button1.Location = new System.Drawing.Point(128, 240);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(72, 32);
			this.button1.TabIndex = 2;
			this.button1.Text = "加为好友";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
			this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button2.Location = new System.Drawing.Point(24, 240);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(72, 32);
			this.button2.TabIndex = 3;
			this.button2.Text = "取消";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// dataGrid1
			// 
			this.dataGrid1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.dataGrid1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.dataGrid1.CaptionBackColor = System.Drawing.SystemColors.ActiveBorder;
			this.dataGrid1.DataMember = "";
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(16, 32);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.SelectionBackColor = System.Drawing.Color.Red;
			this.dataGrid1.SelectionForeColor = System.Drawing.Color.Black;
			this.dataGrid1.Size = new System.Drawing.Size(208, 184);
			this.dataGrid1.TabIndex = 4;
			this.dataGrid1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.dataGrid1_MouseDown);
			// 
			// friend
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(240, 301);
			this.Controls.Add(this.dataGrid1);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Name = "friend";
			this.Text = "friend";
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			this.ResumeLayout(false);
		}
		#endregion
		public void startset(string a)
		{
			try
			{
				this.form.sdata.dataset.Tables.Clear();
				System.Data.SqlClient.SqlCommand sss=new System.Data.SqlClient.SqlCommand();
				if(a=="")
                     sss.CommandText="SELECT id,name,sex,age from [user]";
				else
				sss.CommandText="SELECT id,name,sex,age from [user] where "+a;
				sss.Connection=this.form.sdata.sqlConnection1;
				this.form.sdata.sqlDataAdapter1.SelectCommand=sss;
				
				this.form.sdata.sqlDataAdapter1.Fill(this.form.sdata.dataset,"you");
				if(this.form.sdata.dataset.Tables["you"].Rows.Count!=0)
				{
					this.dataGrid1.SetDataBinding(this.form.sdata.dataset,"you");
				}
				
			}
			catch(Exception ee)
			{
				MessageBox.Show(ee.ToString());
			}
		}
		private void dataGrid1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
		{
			
		}
		private void button1_Click(object sender, System.EventArgs e)
		{
			int i=0;
			foreach(DataRow dt in this.form.sdata.dataset.Tables["you"].Rows)
			{
				if(i==this.dataGrid1.CurrentRowIndex)
				{
					try
					{
						int j=0;
						
						foreach(UserControl1 dt1 in form.userlist)
						{
							if(dt1.uid==dt[0].ToString())
							{
								MessageBox.Show("你已经加了这个用户");
								j=1;
								break;
							}
							
						}
						if(j==0)
						{
							System.Data.SqlClient.SqlCommand insert=new System.Data.SqlClient.SqlCommand();
							insert.CommandText = "INSERT INTO friends( uid, friendid) VALUES ("+form.userid+","+dt[0].ToString()+")";
							insert.Connection=this.form.sdata.sqlConnection1;
							this.form.sdata.sqlConnection1.Open();
							insert.ExecuteNonQuery();
							this.form.sdata.sqlConnection1.Close();
							System.Data.SqlClient.SqlCommand select=new System.Data.SqlClient.SqlCommand();
							select.CommandText= "SELECT [user].id,[user].name,[user].sex,[user].picture,[user].age,[user].jianjie,[user].state FROM [user]  where id="+dt[0].ToString();
							select.Connection=this.form.sdata.sqlConnection1;
							this.form.sdata.sqlDataAdapter1.SelectCommand=select;
								this.form.sdata.dataset.Tables.Add("aa");
							this.form.sdata.sqlDataAdapter1.Fill(this.form.sdata.dataset,"aa");
						
							foreach(DataRow d in this.form.sdata.dataset.Tables["aa"].Rows)
							{
								UserControl1 userControl13=new UserControl1(form);
								userControl13.Dock=DockStyle.Top;
								userControl13.uid=d[0].ToString();
								userControl13.name=d[1].ToString();
								userControl13.sex=d[2].ToString();
								userControl13.picture=d[3].ToString();
								userControl13.age=d[4].ToString();
								userControl13.jianjie=d[5].ToString();
								userControl13.state=d[6].ToString();
								userControl13.setname(d[1].ToString());
								userControl13.setimage((d[3].ToString()).Trim());
								form.userlist.Add(userControl13);	
								form.panel4.Controls.Add(userControl13);
							}
							this.form.sdata.dataset.Tables.Remove("aa");
							break;
						}
					}
					catch(Exception ee)
					{
						MessageBox.Show(ee.ToString());
					}
				}
				i++;
			}
			
		}
		private void button2_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}
	
	}
}

						