public static string UpdateDataBaseDataSource(DesignerDataBaseDataSource ds)
{
string path = Directory.GetCurrentDirectory() + @"\DataSources\DataBase\" + ds.Name + ".bds";
try
{
MemoryStream Stream = new MemoryStream();
XmlSerializer xml = new XmlSerializer(typeof(DesignerDataBaseDataSource));
//序列化对象
xml.Serialize(Stream, ds);
Stream.Position = 0;
StreamReader sr = new StreamReader(Stream);
string str = sr.ReadToEnd();
//存到文件
FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite);
StreamWriter sw = new StreamWriter(fs); // 创建写入流
sw.Write(str);
sw.Close();
sr.Dispose();
Stream.Dispose();
//注册该数据源
DataSourceManager.Register(ds.Name, ds.DataSourceType, ds);
return(path);
}
catch (Exception e)
{
throw new Exception("增加数据库数据源时出错：" + e.Message);
}
}
/// <summary>
/// 数据库名下拉框下拉时，远程获取所有数据库名
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DSDBCB_DropDownOpened(object sender, EventArgs e)
{
if (this.SelectedItem == null)
{
return;
}
if (!(this.SelectedItem is DesignerDataBaseDataSource))
{
return;
}
DesignerDataBaseDataSource ds = SelectedItem as DesignerDataBaseDataSource;
if (!string.IsNullOrEmpty(ds.Address) && !string.IsNullOrEmpty(ds.UserName) && !string.IsNullOrEmpty(ds.PassWord))
{
string constr = string.Format("Server={0};database={1};uid={2};pwd={3}", ds.Address, "master", ds.UserName, ds.PassWord);
using (SqlExcuter se = new SqlExcuter(DataBaseType.SqlServer, constr))
{
DataTable data = se.ExecuteSelectSql("select name from master..sysdatabases");
DSDBCB.Items.Clear();
foreach (DataRow r in data.Rows)
{
string n = r["name"].ToString();
DSDBCB.Items.Add(n);
}
}
}
else
{
MessageBox.Show("请输入完整信息");
}
}
private void AddButton_Click(object sender, RoutedEventArgs e)
{
DesignerDataSource ds = null;
TabItemEx tabItem = MainTab.SelectedItem as TabItemEx;
switch (tabItem.Header.ToString())
{
case "数据库":
ds = new DesignerDataBaseDataSource();
DataBaseDataSourceList.Add(ds as DesignerDataBaseDataSource);
break;
case "本地文件":
throw new NotImplementedException();
break;
case "网络资源":
throw new NotImplementedException();
break;
case "静态文本":
ds = new DesignerStaticTextDataSource();
StaticTextDataSourceList.Add(ds as DesignerStaticTextDataSource);
break;
default:
throw new NotImplementedException();
}
this.SelectedItem = ds;
}
/// <summary>
/// 使用Indusfo.DAL 返回DataTable
/// </summary>
/// <param name="designerDataBaseDataSource"></param>
/// <returns></returns>
private static Task <DataTable> ExcuteDataBaseDataSource(DesignerDataBaseDataSource ds)
{
return(Task <DataTable> .Run(() =>
{
using (SqlExcuter se = new SqlExcuter(DataBaseType.SqlServer, ds.ConnectionString))
{
return se.ExecuteSelectSql(ds.SqlString);
}
}));
}
public static IEnumerable <DesignerDataBaseDataSource> GetDataBaseDataSources()
{
List <DesignerDataBaseDataSource> dss = new List <DesignerDataBaseDataSource>();
string curDirPath = Directory.GetCurrentDirectory() + @"\DataSources\DataBase";
//若不存在文件夹则先创建
if (!Directory.Exists(curDirPath))
{
Directory.CreateDirectory(curDirPath);
}
DirectoryInfo di = new DirectoryInfo(curDirPath);
FileInfo[] fis = di.GetFiles();
try
{
foreach (FileInfo fi in fis)
{
string ext = fi.Extension.ToLower();
if (ext.IndexOf("bds") == -1 && ext.IndexOf("xml") == -1)
{
continue;
}
else
{
string xml = File.ReadAllText(fi.FullName);
using (StringReader sr = new StringReader(xml))
{
XmlSerializer xmldes = new XmlSerializer(typeof(DesignerDataBaseDataSource));
DesignerDataBaseDataSource ds = xmldes.Deserialize(sr) as DesignerDataBaseDataSource;
dss.Add(ds);
}
}
}
return(dss);
}
catch (Exception e)
{
throw new Exception("读取DataSources时出错：" + e.Message);
}
}
