//====操作
public override int Update()
{
try
{
new SqlCommandBuilder(adapter);
return(adapter.Update(table));
}
catch (Exception ex)
{
MyDialog.Msg(ex.Message, 3);
return(0);
}
}
//====操作
public virtual int Update()
{
try
{
new OleDbCommandBuilder(adapter);
return(adapter.Update(table));
}
catch (Exception ex)
{
MyDialog.Msg(ex.Message, 3);
return(0);
}
}
/// <summary>
/// 运行路径。
/// </summary>
/// <param name="Path">目标路径。</param>
public static void Run(string Path)
{
process = new Process();//若不在此处每次实例化，锁定后会出现无法访问文件的异常
process.StartInfo.FileName = Path;
try
{
process.Start();
}
catch (Exception ex)
{
MyDialog.Msg(ex.Message + "\n异常路径：" + Path, 3);
}
}
/// <summary>
/// 获取 Excel 文件内所有表格的数据。
/// </summary>
/// <param name="ExcelPath">文件路径。</param>
/// <param name="ReadAllSheets">是否读取所有Sheet内容。若不是则只读取第一个Sheet。</param>
/// <returns>所有数据。</returns>
public static DataTableCollection GetExcelDataTables(string ExcelPath, bool ReadAllSheets = false)
{
OleDbCommand cmd = new OleDbCommand();
OleDbDataAdapter adapter = new OleDbDataAdapter(cmd);
DataSet dataset = new DataSet();
DataTable info;//表格名集合
DataRow row;
string sheetName;
//ConStr="Provider=Microsoft.Jet.OleDb.4.0;" + "data source=" + FileFullPath + ";Extended Properties='Excel 8.0; HDR=NO; IMEX=1'"; //只能操作Excel2007之前(.xls)文件
//ConStr="Provider=Microsoft.Ace.OleDb.12.0;" + "data source=" + FileFullPath + ";Extended Properties='Excel 12.0; HDR=NO; IMEX=1'"; //可以操作.xls與.xlsx文件
//*/
OleDbConnection con = new OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=" + ExcelPath + ";" +
"Extended Properties=Excel 8.0;");
/*/
* OleDbConnection con = new OleDbConnection(
* "Provider=Microsoft.Ace.OLEDB.12.0;" +
* "Data Source=" + ExcelPath + ";" +
* "Extended Properties=Excel 12.0;");//前提是安装了新版Office
* //*/
cmd.Connection = con;
try
{
con.Open();
info = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
con.Close();
for (int r = 0; r < info.Rows.Count; r++)
{
row = info.Rows[r];
sheetName = row["TABLE_NAME"].ToString();
cmd.CommandText = "select * from [" + sheetName + "]";
adapter.Fill(dataset, sheetName);
if (!ReadAllSheets)
{
break;
}
//注意：若要在查询语句中指定Sheet的名称，其后要加一个$，如Sheet1$, Sheet2$
}
return(dataset.Tables);
//程序将第一行有数据的行作为表头行。
//程序认为表头之前的空行不存在。
//程序从表头的下一行开始读取数据。
}
catch (Exception ex)
{
MyDialog.Msg(ex.Message, 3);
return(null);
}
}
public bool Open()
{
try
{
Port.Open();
Port.DiscardInBuffer();
Port.DiscardOutBuffer();
return(true);
}
catch (Exception e)
{
MyDialog.Msg("打开扫描枪串口失败。\n" + e.Message, 3);
return(false);
}
}
bool CheckCondition()
{
if (con == null)
{
MyDialog.Msg(GV.Name + "尚未绑定数据库！", 3);
Environment.Exit(0);
return(false);
}
if (QueryFields == null)
{
MyDialog.Msg(GV.Name + "尚未设置查询字段！", 3);
Environment.Exit(0);
return(false);
}
return(true);
}
//====
public int Update()
{
int ResultNum = 0;
if (useAccess)
{
new OleDbCommandBuilder(adapterA);
try { ResultNum = adapterA.Update(table); }
catch (Exception ex) { MyDialog.Msg(ex.Message, 3); }
}
else
{
new SqlCommandBuilder(adapterS);
try { ResultNum = adapterS.Update(table); }
catch (Exception ex) { MyDialog.Msg(ex.Message, 3); }
}
return(ResultNum);
}
public static OleDbConnection GetAccessConnection(string AccessPath, string Password = "")
{
OleDbConnection con = new OleDbConnection(
"data source=" + AccessPath + ";" +
"provider=Microsoft.Jet.OLEDB.4.0;" + //Microsoft.ACE.OLEDB.12.0
"mode=12;" + //独占方式
"" +
"Jet OleDb:DataBase Password=" + Password);
try
{
con.Open();
con.Close();
return(con);
}
catch (Exception ex)
{
MyDialog.Msg(ex.Message, 3);
return(null);
}
}
public static SqlConnection GetSqlServerConnection(string ServerIP, string Password, string DBName, string UserID = "sa")
{
SqlConnection con = new SqlConnection(
"data source=" + ServerIP + ";" +
"initial catalog=" + DBName + ";" +
"uid=" + UserID + ";" +
"pwd=" + Password + ";" +
"integrated security=no;" +
"connection timeout=3;" +
"" +
"persist security info=false;");
try
{
con.Open();//若IP地址有误，运行到这里时会等待很久，因此用connection timeout定时结束等待
con.Close();
return(con);
}
catch (Exception ex)
{
MyDialog.Msg(ex.Message, 3);
return(null);
}
}