public DataTable GetDataTable(String SqlString)
{
try
{
DataSet dataset = GetDataSet(SqlString);
dataset.CaseSensitive = false;
return dataset.Tables[0];
}
catch (Exception e)
{
return null;
}
finally
{
Close();
}
}
public DataSet GetDataSet(String SqlString)
{
DataSet dataset = new DataSet();
Open();
try
{
OleDbDataAdapter adapter = new OleDbDataAdapter(SqlString, Connection);
adapter.Fill(dataset);
}
catch (Exception e)
{ }
finally
{
Close();
}
return dataset;
}这里面GetDataTable, GetDataSet的参数是做什么用的呢?是OleDbDataAdapter的链接地址吗?
{
try
{
DataSet dataset = GetDataSet(SqlString);
dataset.CaseSensitive = false;
return dataset.Tables[0];
}
catch (Exception e)
{
return null;
}
finally
{
Close();
}
}
public DataSet GetDataSet(String SqlString)
{
DataSet dataset = new DataSet();
Open();
try
{
OleDbDataAdapter adapter = new OleDbDataAdapter(SqlString, Connection);
adapter.Fill(dataset);
}
catch (Exception e)
{ }
finally
{
Close();
}
return dataset;
}这里面GetDataTable, GetDataSet的参数是做什么用的呢?是OleDbDataAdapter的链接地址吗?
GetDataTable(String SqlString)这个参数是传进去的sql语句,比如:select * from youtable
然后DataSet dataset = GetDataSet(SqlString);这个调用GetDataSe(SqlString)这个方法,把你这个sql语句传进去执行这个方法,最后返回一个DataTable对象,这个应该明白了。还是多学学基础吧