c# sqlserver连接字符串

odbc：

string cnnstring = @"Driver={SQL Server Native Client 11.0};Initial Catalog = sxquadb;server=服务器ip;uid=账号;pwd=密码;app=hawk;wsid=D0r2";

cnnString = @"Data Source = 10.252.21.8; Initial Catalog = sxquadb; User ID = sx00052; password=Cw8569*";

public static bool ExportToExcel_ByQueryTable()

{

bool _bl = false;

excel.Application xlApp = new excel.Application();

excel.Workbook wk = xlApp.Workbooks.Add(excel.XlWBATemplate.xlWBATWorksheet);

excel.Worksheet sht = wk.Worksheets[1];

xlApp.Visible = true;

// string cnnstring = @"Driver={SQL Server Native Client 10.0};Data Source = 191.251.21.2; Initial Catalog = pub; User ID =账号; password=密码;

string cnnstring = @"Driver={SQL Server Native Client 11.0};server=191.251.21.2;uid=账号;pwd=密码app=hawk;wsid=ww";

//OdbcConnection cnn = new OdbcConnection(cnnstring);

//cnn.Open();

cnnstring = "ODBC;" + cnnstring;

try

{

string sqlstr = "select * from inspection_record";

excel.QueryTable qt = sht.QueryTables.Add(cnnstring, sht.Range["A1"], sqlstr);

qt.MaintainConnection = false;

qt.SavePassword = false;

qt.RefreshOnFileOpen = false;

qt.SaveData = true;

qt.BackgroundQuery = false;

qt.EnableRefresh = false;

qt.Refresh();

//删除ODBC连接信息，不能刷新

for (int i = 1; i <= wk.Connections.Count; i++)

{ wk.Connections[i].Delete(); }

}

catch(Exception ex)

{

Docmd.msgInfo(ex.Message );

}

return _bl;

}

c# 用queryTable导出数据：

string sqlstr = "select * from inspection_record";
                excel.QueryTable qt = sht.QueryTables.Add("ODBC;" + cnnstring, sht.Range["A1"], sqlstr);