Hello All,
I have a data grid that I fill using a dataset. The results of the query
has around 15 columns and 500 rows (and growing). The reason I am using the
datagrid is so the end users can auto sort and page so I would like to keep
using the datagrid. My problem is that when I call DataAdapter.Fil l, it
takes a very long time and is even causing the web page to time out. Does
anyone know why the fill is taking so long (15-20 sec) or have any better
suggestions to display the records?
SQL Sent To Function
Select user_id, password, emailaddress, firstname, lastname, address, city,
state, zip, phonenumber, marketing, admin, status, last_order from users
where status = 'A'
Primary Key on user_id
Index on Status
public DataSet LoadDataset(str ing sql, string tableName, DataSet ds)
{
SqlCeCommand dc = new SqlCeCommand(sq l, conn, trans);
if (ds == null) {ds = new DataSet();}
if(ds.Tables[tableName]!=null){ds.Tabl es[tableName].Clear();}
if (tableName == null) {tableName = "Table";}
SqlCeDataAdapte r da = new SqlCeDataAdapte r(dc);
da.Fill(ds, tableName);
da.Dispose();
dc.Dispose();
return ds;
} 2 5218
Hi,
First of all, searching by text fields is very very slow and not efficient.
If You have to make selection on status ( which could be also numeric
field ) do this way, searching by numeric value is faster.
Your Code:
>SqlCeCommand dc = new SqlCeCommand(sq l, conn, trans);
if (ds == null) {ds = new DataSet();}
if(ds.Tables[tableName]!=null){ds.Tabl es[tableName].Clear();}
if (tableName == null) {tableName = "Table";}
SqlCeDataAdapte r da = new SqlCeDataAdapte r(dc);
da.Fill(ds, tableName);
try do this way:
ds = null;
ds = new DataSet();
DataTable dt = new DataTable();
da.Fill(dt);
ds.Tables.add(d t)
this code is good when You use Dataset as a storage of one table, there is
no problem to create new table and fill it by dataadapter;-)
Adas
Użytkownik "MDB" <md*@nowhere.co mnapisał w wiadomo¶ci
news:u%******** ********@TK2MSF TNGP04.phx.gbl. ..
Hello All,
I have a data grid that I fill using a dataset. The results of the query
has around 15 columns and 500 rows (and growing). The reason I am using
the datagrid is so the end users can auto sort and page so I would like to
keep using the datagrid. My problem is that when I call DataAdapter.Fil l,
it takes a very long time and is even causing the web page to time out.
Does anyone know why the fill is taking so long (15-20 sec) or have any
better suggestions to display the records?
SQL Sent To Function
Select user_id, password, emailaddress, firstname, lastname, address,
city, state, zip, phonenumber, marketing, admin, status, last_order from
users where status = 'A'
Primary Key on user_id
Index on Status
public DataSet LoadDataset(str ing sql, string tableName, DataSet ds)
{
SqlCeCommand dc = new SqlCeCommand(sq l, conn, trans);
if (ds == null) {ds = new DataSet();}
if(ds.Tables[tableName]!=null){ds.Tabl es[tableName].Clear();}
if (tableName == null) {tableName = "Table";}
SqlCeDataAdapte r da = new SqlCeDataAdapte r(dc);
da.Fill(ds, tableName);
da.Dispose();
dc.Dispose();
return ds;
}
Thank you for your response. I will try switching the status to a numeric
value and using a datatable.
"tomodati" <ad************ ***@op.plwrote in message
news:e9******** **@nemesis.news .tpi.pl...
Hi,
First of all, searching by text fields is very very slow and not
efficient. If You have to make selection on status ( which could be also
numeric field ) do this way, searching by numeric value is faster.
Your Code:
>>SqlCeComman d dc = new SqlCeCommand(sq l, conn, trans);
if (ds == null) {ds = new DataSet();} if(ds.Tables[tableName]!=null){ds.Tabl es[tableName].Clear();} if (tableName == null) {tableName = "Table";} SqlCeDataAdapt er da = new SqlCeDataAdapte r(dc); da.Fill(ds, tableName);
try do this way:
ds = null;
ds = new DataSet();
DataTable dt = new DataTable();
da.Fill(dt);
ds.Tables.add(d t)
this code is good when You use Dataset as a storage of one table, there is
no problem to create new table and fill it by dataadapter;-)
Adas
Użytkownik "MDB" <md*@nowhere.co mnapisał w wiadomo¶ci
news:u%******** ********@TK2MSF TNGP04.phx.gbl. ..
>Hello All,
I have a data grid that I fill using a dataset. The results of the query has around 15 columns and 500 rows (and growing). The reason I am using the datagrid is so the end users can auto sort and page so I would like to keep using the datagrid. My problem is that when I call DataAdapter.Fi ll, it takes a very long time and is even causing the web page to time out. Does anyone know why the fill is taking so long (15-20 sec) or have any better suggestions to display the records?
SQL Sent To Function Select user_id, password, emailaddress, firstname, lastname, address, city, state, zip, phonenumber, marketing, admin, status, last_order from users where status = 'A'
Primary Key on user_id Index on Status
public DataSet LoadDataset(str ing sql, string tableName, DataSet ds) { SqlCeCommand dc = new SqlCeCommand(sq l, conn, trans);
if (ds == null) {ds = new DataSet();} if(ds.Tables[tableName]!=null){ds.Tabl es[tableName].Clear();} if (tableName == null) {tableName = "Table";} SqlCeDataAdapt er da = new SqlCeDataAdapte r(dc); da.Fill(ds, tableName);
da.Dispose() ; dc.Dispose() ;
return ds; } This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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