打造自己的C#WinForm应用程序的SQLServer连接配置界面

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

在C# WinForm 应用程序非常需要一个 SQL Server 连接配置界面，许多时候，因 SQL Server 服务器地址变更或 数据库登录账户 变更引起的连接失败等情况，客户就可能打电话“找麻烦”。既然这样，还不如提供一个可视化的配置界面，并在用户手册中说明使用方法，尽可能避免这种小问题带来的烦恼。为此，我将自己无聊时写的连接配置源码贴出来给初学者参考，以备不时之需！

想必大家都很熟悉VS服务器资源管理器中的【添加连接】对话框吧！下面是它的截图：

再看看我模仿这个对话框打造的WinForm程序SQL Server 连接配置界面：

呵呵！有几分相似吧！需要的朋友可以参考下面的源码。这份源码是完整的，粘贴到VS中即可使用。

窗体源码：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.IO;

using System.Windows.Forms;

using System.Data.Sql;

using System.Data.SqlClient;

using System.Configuration;



namespace CodingMouse.CMCSharpSDK.UI.Forms
{
    /// <summary>
    /// 数据库连接配置界面
    /// </summary>
    public partial class frmConnectionConfig : Form
    {
        #region Private Members
        /// <summary>
        /// SQL Server 连接字符串创建者对象
        /// </summary>
        SqlConnectionStringBuilder _connectionStringBuilder = null;
        /// <summary>
        /// 当前应用程序名称
        /// </summary>
        string _applicationName;

        #endregion

        #region Private Methods
        /// <summary>
        /// 获取 本地网络所有 SQL Server 实例(数据源)
        /// </summary>
        private void GetSqlDataSource()
        {
            // 显示提示信息
            string msg = "正在获取本地网络所有 SQL Server 服务器信息 ...";
            this.toolTip.ToolTipIcon = ToolTipIcon.Info;
            this.toolTip.ToolTipTitle = "请稍候...";
            Point showLocation = new Point(
                this.lblServer.Left + 2,
                this.lblServer.Top + this.lblServer.Height);
            this.toolTip.Show(msg, this, showLocation, 1000);

            // 创建 提供了一种枚举本地网络内的所有可用 SQL Server 实例的机制 的实例
            SqlDataSourceEnumerator sdsEnum = SqlDataSourceEnumerator.Instance;
            // 调用 检索包含有关所有可见 SQL Server 2000 或 SQL Server 2005 实例的信息的 DataTable 的方法
            DataTable serverDt = sdsEnum.GetDataSources();
            // 创建新列以拼接 ServerName 以及 InstanceName 列的内容(以此构建连接字符串的 Server / Data Source 项)
            DataColumn dcDataSource = new DataColumn("SqlDataSourceName", typeof(string));
            // 将新列添加到 DataTable
            serverDt.Columns.Add(dcDataSource);
            // 创建新列以用中文方式显示 IsClustered 列内容
            DataColumn dcIsClustered = new DataColumn("IsClusteredCHS", typeof(string));
            // 将新列添加到 DataTable
            serverDt.Columns.Add(dcIsClustered);

            // 遍历 DataTable 并给新列赋予拼接后的值
            foreach (DataRow dataRow in serverDt.Rows)
            {
                if (!string.IsNullOrEmpty(Convert.ToString(dataRow["InstanceName"])))
                    dataRow["SqlDataSourceName"] = string.Format(@"{0}/{1}",
                        Convert.ToString(dataRow["ServerName"]),
                        Convert.ToString(dataRow["InstanceName"]));
                else
                    dataRow["SqlDataSourceName"] = string.Format(@"{0}",
                        Convert.ToString(dataRow["ServerName"]));

                dataRow["IsClusteredCHS"] = 
                    (Convert.ToString(dataRow["IsClustered"]).Trim().ToUpper() == "NO")
                    ? "否" : ((Convert.ToString(dataRow["IsClustered"]).Trim().ToUpper() == "YES") 
                    ? "是" : dataRow["IsClustered"]);
            }

            // 如果包含数据行
            if (serverDt.Rows.Count > 0)
            {
                // 创建窗体数据源封装类实例并封装 DataTable
                BindingSource source = new BindingSource();
                source.DataSource = serverDt;

                // 设置 ComboBox 数据源
                this.cboSqlDataSource.DataSource = source;
                this.cboSqlDataSource.DisplayMember = "SqlDataSourceName";
                this.cboSqlDataSource.ValueMember = "SqlDataSourceName";
                // 设置 DataGridView 数据源
                this.dgvServerInfo.DataSource = source;

                // 设置中文列名
                this.dgvServerInfo.Columns["SqlDataSourceName"].HeaderText = "服务器名";
                this.dgvServerInfo.Columns["SqlDataSourceName"].DisplayIndex = 0;
                this.dgvServerInfo.Columns["ServerName"].HeaderText = "服务器物理名称";
                this.dgvServerInfo.Columns["ServerName"].DisplayIndex = 1;
                this.dgvServerInfo.Columns["ServerName"].Visible = false;
                this.dgvServerInfo.Columns["InstanceName"].HeaderText = "实例名";
                this.dgvServerInfo.Columns["InstanceName"].DisplayIndex = 2;
                this.dgvServerInfo.Columns["InstanceName"].Visible = false;
                this.dgvServerInfo.Columns["IsClustered"].HeaderText = "群集信息";
                this.dgvServerInfo.Columns["IsClustered"].DisplayIndex = 3;
                this.dgvServerInfo.Columns["IsClustered"].Visible = false;
                this.dgvServerInfo.Columns["IsClusteredCHS"].HeaderText = "属于群集";
                this.dgvServerInfo.Columns["IsClusteredCHS"].DisplayIndex = 4;
                this.dgvServerInfo.Columns["Version"].HeaderText = "版本";
                this.dgvServerInfo.Columns["Version"].DisplayIndex = 5;
            }
        }

        /// <summary>
        /// 获取当前服务器上所有数据库名称
        /// </summary>
        private void GetDataBaseName()
        {
            // 显示提示信息
            string msg = string.Format("正在获取服务器 [{0}] 上的数据库信息 ...", cboSqlDataSource.Text.Trim());
            this.toolTip.ToolTipIcon = ToolTipIcon.Info;
            this.toolTip.ToolTipTitle = "请稍候...";
            Point showLocation = new Point(
                this.lblServer.Left + 2,
                this.lblServer.Top + this.lblServer.Height);
            this.toolTip.Show(msg, this, showLocation, 1000);

            // 查询服务器上所有数据库的 SQL 查询命令
            string sqlTxt = "Select [Name] From [SysDatabases] Order By [Name]";

            // 保存结果的 DataTable
            DataTable dataBaseDt = new DataTable();

            // 创建连接对象
            using (SqlConnection con = new SqlConnection(GetConnectionString()))
            {
                // 执行查询
                try
                {
                    // 创建适配器对象
                    using (SqlDataAdapter adp = new SqlDataAdapter(sqlTxt, con))
                    {
                        // 将查询结果填充到 DataTable
                        adp.Fill(dataBaseDt);
                    }
                }
                catch { }  // 不弹出异常消息
            }

            // 如果 DataTable 包含数据行
            if (dataBaseDt.Rows.Count > 0)
            {
                // 创建窗体数据绑定对象
                BindingSource source = new BindingSource();
                source.DataSource = dataBaseDt;

                // 将结果绑定到数据库列表
                cboDataBaseName.DataSource = source;
                cboDataBaseName.DisplayMember = "Name";
                cboDataBaseName.ValueMember = "Name";
            }
            else
            {
                // 移除数据库列表
                cboDataBaseName.DataSource = null;
            }
        }

        /// <summary>
        /// 获取连接字符串
        /// </summary>
        private string GetConnectionString()
        {
            // 重新创建连接字符串创建者
            _connectionStringBuilder = new SqlConnectionStringBuilder();

            // 获取服务器名称
            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))
                _connectionStringBuilder.DataSource = cboSqlDataSource.Text.Trim();
            // 获取登录类型
            if (rdoValidateBySQLServer.Checked)
            {
                if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))
                    _connectionStringBuilder.UserID = txtUserName.Text.Trim();
                if (!string.IsNullOrEmpty(txtPassword.Text.Trim()))
                    _connectionStringBuilder.Password = txtPassword.Text.Trim();
            }
            // 获取默认数据库
            if (!string.IsNullOrEmpty(cboDataBaseName.Text.Trim())
                || !string.IsNullOrEmpty(txtDataBaseFilePath.Text.Trim())
                || !string.IsNullOrEmpty(txtLogicalName.Text.Trim()))
            {
                // 如果是附加一个数据库文件
                if (rdoAttachADataBaseFile.Checked)
                {
                    _connectionStringBuilder.AttachDBFilename = txtDataBaseFilePath.Text.Trim();
                    _connectionStringBuilder.InitialCatalog = txtLogicalName.Text.Trim();
                }
                else
                    _connectionStringBuilder.InitialCatalog = cboDataBaseName.Text.Trim();
            }
            // 调整连接字符串
            if (rdoValidateByWindows.Checked)
                _connectionStringBuilder.IntegratedSecurity = true;

            // 返回连接字符串
            return _connectionStringBuilder.ConnectionString;
        }

        #endregion

        #region Public Methods
        /// <summary>
        /// 无参构造
        /// </summary>
        public frmConnectionConfig(string applicationName)
        {
            // 构建设计器控件
            InitializeComponent();

            // 保存当前应用程序名称
            _applicationName = applicationName;

            // 创建连接字符串创建者
            _connectionStringBuilder = new SqlConnectionStringBuilder();
            _connectionStringBuilder.IntegratedSecurity = true;
            //_connectionStringBuilder.ApplicationName = _applicationName;
            //_connectionStringBuilder.AsynchronousProcessing = true;
            //_connectionStringBuilder.Encrypt = true;
        } 
        #endregion

        #region Event Handlers
        /// <summary>
        /// 数据源 列表下拉事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboSqlDataSource_DropDown(object sender, EventArgs e)
        {
            // 如果 数据源 列表条目为空
            if (cboSqlDataSource.Items.Count == 0)
            {
                // 获取 本地网络所有 SQL Server 实例(数据源)
                GetSqlDataSource();
            }
        }

        /// <summary>
        /// 数据库 列表获得焦点事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboDataBaseName_Enter(object sender, EventArgs e)
        {
            // 获取当前服务器上所有数据库名称
            GetDataBaseName();
        }

        /// <summary>
        /// 选择选项卡页事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tcServerInfo_Selecting(object sender, TabControlCancelEventArgs e)
        {
            // 如果 数据源 列表条目为空
            if (cboSqlDataSource.Items.Count == 0 && e.TabPage == tpServerInfo)
            {
                // 获取 本地网络所有 SQL Server 实例(数据源)
                GetSqlDataSource();
            }
        }

        /// <summary>
        /// [刷新]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnRefresh_Click(object sender, EventArgs e)
        {
            // 获取 本地网络所有 SQL Server 实例(数据源)
            GetSqlDataSource();
        }

        /// <summary>
        /// [使用 SQL Server 身份验证]单选按钮 Checked 属性更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rdoValidateBySQLServer_CheckedChanged(object sender, EventArgs e)
        {
            if (rdoValidateBySQLServer.Checked)
            {
                _connectionStringBuilder.IntegratedSecurity = false;
                lblUserName.Enabled = true;
                txtUserName.Enabled = true;
                lblPassword.Enabled = true;
                txtPassword.Enabled = true;

                if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))
                    gbConnectToADataBase.Enabled = true;
                else
                    gbConnectToADataBase.Enabled = false;
            }
            else
            {
                _connectionStringBuilder.IntegratedSecurity = true;
                lblUserName.Enabled = false;
                txtUserName.Enabled = false;
                lblPassword.Enabled = false;
                txtPassword.Enabled = false;

                if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))
                    gbConnectToADataBase.Enabled = true;
                else
                    gbConnectToADataBase.Enabled = false;
            }
        }

        /// <summary>
        /// [附加一个数据库文件]单选按钮 Checked 属性更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rdoAttachADataBaseFile_CheckedChanged(object sender, EventArgs e)
        {
            if (rdoAttachADataBaseFile.Checked)
            {
                cboDataBaseName.Enabled = false;
                txtDataBaseFilePath.Enabled = true;
                btnBrowse.Enabled = true;
                lblLogicalName.Enabled = true;
                txtLogicalName.Enabled = true;
            }
            else
            {
                cboDataBaseName.Enabled = true;
                txtDataBaseFilePath.Enabled = false;
                btnBrowse.Enabled = false;
                lblLogicalName.Enabled = false;
                txtLogicalName.Enabled = false;
            }
        }
        
        /// <summary>
        /// 数据源 列表 Text 值更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboSqlDataSource_TextChanged(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim())
                && _connectionStringBuilder.IntegratedSecurity == true
                || !string.IsNullOrEmpty(txtUserName.Text.Trim())
                && _connectionStringBuilder.IntegratedSecurity == false)
            {
                gbConnectToADataBase.Enabled = true;
                btnOK.Enabled = true;
            }
            else
            {
                gbConnectToADataBase.Enabled = false;
                btnOK.Enabled = false;
            }
        }

        /// <summary>
        /// [用户名]文本框文本更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void txtUserName_TextChanged(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))
                gbConnectToADataBase.Enabled = true;
            else
                gbConnectToADataBase.Enabled = false;
        }

        /// <summary>
        /// [测试连接]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnTestConnection_Click(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))
            {
                // 创建连接对象
                using (SqlConnection con = new SqlConnection(GetConnectionString()))
                {
                    try
                    {
                        // 打开数据库连接
                        con.Open();

                        // 给出用户提示
                        MessageBox.Show(
                            "测试连接成功。",
                            this.Text,
                            MessageBoxButtons.OK,
                            MessageBoxIcon.Information);
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(
                        ex.Message,
                        this.Text,
                        MessageBoxButtons.OK,
                        MessageBoxIcon.Error);
                    }
                    finally
                    {
                        // 关闭数据库连接
                        con.Close();
                    }
                }
            }
            else
            {
                MessageBox.Show(
                    "无法测试此连接，因为没有指定服务器名称。",
                    this.Text,
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }
        }

        /// <summary>
        /// [确定]按钮点击事件 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOK_Click(object sender, EventArgs e)
        {
            try
            {
                // 创建应用程序配置文件
                string configFilePath = string.Format(@"{0}.config", Application.ExecutablePath);
                Configuration configuration = null;
                if (!File.Exists(configFilePath))
                {
                    FileStream fs = null;
                    try
                    {
                        fs = new FileStream(configFilePath, FileMode.CreateNew);
                        fs.SetLength(0);
                    }
                    catch { }   // 不弹出异常提示
                    finally
                    {
                        fs.Close();
                    }
                }

                configuration = ConfigurationManager.OpenExeConfiguration(configFilePath);
                // configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
                // 遍历检验 ConnectionType 项是否存在
                bool appSettingsExist = false;
                foreach (KeyValueConfigurationElement element in configuration.AppSettings.Settings)
                {
                    // 如果存在
                    if (element.Key == "ConnectionType")
                    {
                        // 标识存在
                        appSettingsExist = true;
                        break;
                    }
                }
                // 如果存在
                if (appSettingsExist)
                    // 修改配置节点
                    configuration.AppSettings.Settings["ConnectionType"].Value = "SQLSERVER";
                else
                    // 添加配置节点
                    configuration.AppSettings.Settings.Add("ConnectionType", "SQLSERVER");

                // 遍历检验 SQLSERVER 项是否存在
                bool connectionStringExist = false;
                foreach (ConnectionStringSettings setting in configuration.ConnectionStrings.ConnectionStrings)
                {
                    // 如果存在
                    if (setting.Name == "SQLSERVER")
                    {
                        // 标识存在
                        connectionStringExist = true;
                    }
                }
                // 如果存在
                if (connectionStringExist)
                {
                    // 修改配置节点
                    configuration.ConnectionStrings.ConnectionStrings["SQLSERVER"].ConnectionString =
                        GetConnectionString();
                    configuration.ConnectionStrings.ConnectionStrings["SQLSERVER"].ProviderName =
                        "System.Data.SqlClient";
                }
                else
                {
                    // 添加连接字符串节点
                    configuration.ConnectionStrings.ConnectionStrings.Add(
                        new ConnectionStringSettings(
                        "SQLSERVER",
                        GetConnectionString(),
                        "System.Data.SqlClient"));
                }

                // 保存配置
                configuration.SaveAs(
                    string.Format(@"{0}.config", Application.ExecutablePath.Replace(".EXE", ".exe")),
                    ConfigurationSaveMode.Minimal);

                // 关闭窗体
                this.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    string.Format("保存数据库连接配置时发生以下错误：/r/n/r/n{0}", ex.Message),
                    this.Text,
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }
        }

        /// <summary>
        /// [取消]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        /// <summary>
        /// [浏览]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnBrowse_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofDlg = new OpenFileDialog();
            ofDlg.Title = "选择 SQL Server 数据库文件";
            ofDlg.Filter = "Microsoft SQL Server 数据库(*.mdf)|*.mdf|所有文件(*.*)|*.*";
            ofDlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            DialogResult result = ofDlg.ShowDialog(this);
            if (result == DialogResult.OK)
                txtDataBaseFilePath.Text = ofDlg.FileName;
        }

        /// <summary>
        /// [获取连接字符串]按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnGetConnectionString_Click(object sender, EventArgs e)
        {
            this.txtConnectionString.Text = GetConnectionString();
        }

        #endregion
    }
}

设计器源码：

namespace CodingMouse.CMCSharpSDK.UI.Forms
{
    partial class frmConnectionConfig
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (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.components = new System.ComponentModel.Container();
            this.cboSqlDataSource = new System.Windows.Forms.ComboBox();
            this.tcServerInfo = new System.Windows.Forms.TabControl();
            this.tpConnectionInfo = new System.Windows.Forms.TabPage();
            this.gbConnectToADataBase = new System.Windows.Forms.GroupBox();
            this.txtLogicalName = new System.Windows.Forms.TextBox();
            this.lblLogicalName = new System.Windows.Forms.Label();
            this.btnBrowse = new System.Windows.Forms.Button();
            this.cboDataBaseName = new System.Windows.Forms.ComboBox();
            this.txtDataBaseFilePath = new System.Windows.Forms.TextBox();
            this.rdoAttachADataBaseFile = new System.Windows.Forms.RadioButton();
            this.rdoSelectOrEnterADataBaseName = new System.Windows.Forms.RadioButton();
            this.gbLogOnToTheServer = new System.Windows.Forms.GroupBox();
            this.txtPassword = new System.Windows.Forms.TextBox();
            this.txtUserName = new System.Windows.Forms.TextBox();
            this.lblPassword = new System.Windows.Forms.Label();
            this.lblUserName = new System.Windows.Forms.Label();
            this.rdoValidateBySQLServer = new System.Windows.Forms.RadioButton();
            this.rdoValidateByWindows = new System.Windows.Forms.RadioButton();
            this.tpServerInfo = new System.Windows.Forms.TabPage();
            this.dgvServerInfo = new System.Windows.Forms.DataGridView();
            this.toolTip = new System.Windows.Forms.ToolTip(this.components);
            this.btnRefresh = new System.Windows.Forms.Button();
            this.lblServer = new System.Windows.Forms.Label();
            this.btnGetConnectionString = new System.Windows.Forms.Button();
            this.btnCancel = new System.Windows.Forms.Button();
            this.btnOK = new System.Windows.Forms.Button();
            this.btnTestConnection = new System.Windows.Forms.Button();
            this.lblSplit = new System.Windows.Forms.Label();
            this.txtConnectionString = new System.Windows.Forms.TextBox();
            this.tcServerInfo.SuspendLayout();
            this.tpConnectionInfo.SuspendLayout();
            this.gbConnectToADataBase.SuspendLayout();
            this.gbLogOnToTheServer.SuspendLayout();
            this.tpServerInfo.SuspendLayout();
            ((System.ComponentModel.ISupportInitialize)(this.dgvServerInfo)).BeginInit();
            this.SuspendLayout();
            // 
            // cboSqlDataSource
            // 
            this.cboSqlDataSource.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.cboSqlDataSource.FormattingEnabled = true;
            this.cboSqlDataSource.Location = new System.Drawing.Point(12, 24);
            this.cboSqlDataSource.Name = "cboSqlDataSource";
            this.cboSqlDataSource.Size = new System.Drawing.Size(269, 20);
            this.cboSqlDataSource.TabIndex = 1;
            this.cboSqlDataSource.Leave += new System.EventHandler(this.cboSqlDataSource_Leave);
            this.cboSqlDataSource.TextChanged += new System.EventHandler(this.cboSqlDataSource_TextChanged);
            this.cboSqlDataSource.DropDown += new System.EventHandler(this.cboSqlDataSource_DropDown);
            // 
            // tcServerInfo
            // 
            this.tcServerInfo.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.tcServerInfo.Controls.Add(this.tpConnectionInfo);
            this.tcServerInfo.Controls.Add(this.tpServerInfo);
            this.tcServerInfo.HotTrack = true;
            this.tcServerInfo.Location = new System.Drawing.Point(12, 50);
            this.tcServerInfo.Name = "tcServerInfo";
            this.tcServerInfo.SelectedIndex = 0;
            this.tcServerInfo.ShowToolTips = true;
            this 