山东科技大学
Lb_Message.Text = \聊天用户不能为空！\ }
}
//给服务器发消息
public void SendMessage(string msg) {
byte[] buf = Encoding.UTF8.GetBytes(msg); clientSocket.Send(buf); }
//取消发送
private void Btn_Clear_Click(object sender, EventArgs e) {
Txt_Message.Clear(); }
//显示用户名
private void Lb_UserList_SelectedIndexChanged(object sender, EventArgs e) {
D_User getName = new D_User();
ChatUser = Lb_UserList.SelectedItem.ToString();
M_User GetName = getName.GetUserByPhone(ChatUser); Lbl_FriendName.Text = GetName.UserName; }
//从数据库中查询好友
private void Btn_ReferFriend_Click(object sender, EventArgs e) {
D_User referphone = new D_User();
M_User Referphone = referphone.GetUserByPhone(Txt_ReferPhone.Text); if (Referphone!=null) {
Lb_ReferPhone.Items.Add(Referphone.Phone); MessageBox.Show(\查询成功！\ }
else {
MessageBox.Show(\您所查找的用户不存在！\ } }
//添加好友并保存到数据库
private void Btn_AddFriend_Click(object sender, EventArgs e) {
Receivephone.Phone = Lb_ReferPhone.SelectedItem.ToString(); if (MySelf.Phone == Receivephone.Phone) {
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MessageBox.Show(\自己不能添加自己为好友！\ return; }
//获取好友状态 0代表发送请求，1代表同意加好友，-1代表拒绝加好友，2代表加入黑名单，null 代表未申请添加过
int? state = D_ToPerson.GetFriendState(MySelf.Phone, Receivephone.Phone); bool isContinue = false; //是否继续申请 if (state == 1) {
MessageBox.Show(string.Format(\与【{0}】已是好友关系！\Receivephone.Phone)); return; }
else if (state == 0) {
isContinue = MessageBox.Show(\已发送过请求，对方还未回复是否继续发送\提示\
}
else if (state == 2) {
MessageBox.Show(\已被设为黑名单，无法提交申请！\ return; }
else if (!state.HasValue) {
isContinue = true; }
if (isContinue) {
bool b = true;
if (!state.HasValue) {
b = D_ToPerson.SaveFriend(MySelf.Phone, Receivephone.Phone); } if (b) {
//添加好友命令+好友状态+请求人电话,接收人电话
string message = ADDFRIEND + \\+ MySelf.Phone + \+ Receivephone.Phone;
//发送消息
SendMessage(message); }
Lb_ReferPhone.ClearSelected();
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山东科技大学
} }
//删除好友
private void Btn_DelFriend_Click(object sender, EventArgs e) {
string ReferFriend = \
ReferFriend = Lb_UserList.SelectedItem.ToString(); Lb_UserList.Items.Remove(ReferFriend); }
//建立群
D_User D_U = new D_User();
M_Group GroupName = new M_Group(); D_User referGroupName = new D_User();
private void Btn_BuildGroup_Click(object sender, EventArgs e) { M_Group ReferGroupName referGroupName.GetGroupName(Txt_GroupName.Text); if (ReferGroupName!=null) {
bool b = referGroupName.BuildGroup(Txt_GroupName.Text); MessageBox.Show(\建群成功！！\ } else {
MessageBox.Show(\该群已存在！！\ } }
//从数据库中查询群名称
private void Btn_ReferGroup_Click(object sender, EventArgs e) {
D_User referGroupName = new D_User(); M_Group ReferGroupName referGroupName.GetGroupName(Txt_GroupName.Text); if (ReferGroupName != null) {
Lb_ReferGroupName.Items.Add(ReferGroupName.GroupName); MessageBox.Show(\查询成功！\ } else {
MessageBox.Show(\您所查找的群不存在！\ } }
private void Btn_Close_Click(object sender, EventArgs e)
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{
Application.Exit(); }
//加入该群
private void Btn_AddGroup_Click(object sender, EventArgs e) {
M_Group groupname = new M_Group();
groupname.GroupName= Lb_ReferGroupName.SelectedItem.ToString(); } } }
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