DataSource Controls :: Fetch Top 10 Records From DataTable?
Jun 29, 2010I have One DataTable Having 500 Records, want to Fetch Top 10 Record. how to do it
View 2 RepliesI have One DataTable Having 500 Records, want to Fetch Top 10 Record. how to do it
View 2 RepliesAspx code:
MembershipUser m_user = Membership.GetUser();
DataTable dt = new DataTable();
dt.Columns.Add("SenderUser");
dt.Columns.Add("RcvUser");
dt.Columns.Add("Message");
foreach (ListItem li in lst_Users.Items) {
[Code] ....
I am calling "Application object" from above aspx page into web service page as below:
[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string WebMessage() {
List<string> list = new List<string>();
DataTable dt = ((DataTable)HttpContext.Current.Application["Message"]);
[Code] ....
I want to know that the approach im using in Web service page to fetch top 5 messages from Datatable is correct or not? How to do that without using LINQ as I am using framework 2.0 ...
Equivalent of recordset.Edit, Movefirst,NoMatch of vb6 in vb.Net? I want to fetch records from single table of database(Sql server 2005) and collect in collections. How can we do that by dataset and dataadapter ? We want to fetch not to display.
View 1 RepliesI have two datatables, I want to get all records which are in one datatable but all matching records which exist in another datatable should not be available.
In terms of set, you can say that record which are in 1st datatable but not in 2nd DataTable.
I am new to asp.net.I am buliding an online shopping application.Could anyone tell me the steps to edit records in gridview which have its datasource i.e. datatable.Means the shopping cart wil display its products.i want to do editing in gridview say quantity or product which automatically edit records(quantity) in datatable and then gridview wil again get bind to new edited datatable and able to show edited records say edited quantity of taht product.
View 4 RepliesDoes dataset store all its datatables' records into server memory if I just call one datatable from it?Lets make an example, a dataset with three datatables - tbCompany, tbCompanyStaffs, tbSalesOrderwhere tbCompany is the parent of tbCompanyStaffs. tbSalesOrder is an independant table.Does dataset load all tbCompanyStaffs records into the server memory as well when a class retrive data from tbCompany?
View 3 Repliesim trying to copying specific record from one datatable to another datatable i used below code
public System.Data.DataTable selectspecificdatarow(System.Data.DataTable dtg, int count, int startindex)
{
System.Data.DataTable dtn = dtg.Clone();
for (int i =startindex; i < count; i++)
[Code]....
its taking too long time in cloneing is there any better way to do this task which is Time effecent
i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 RepliesI have two tables and following are the structure of both the tables
Tbale 1
Field1 Field2 Field3
d1 01 26/03/2011
d2 02 26/03/2011
d3 03 27/03/2011
Table2
Field1 Field2 Field3
01 6.15 14.25
02 7.30 16.25
03 6.00 18.25
My expected output when i search records by table1.field3 (say 26/03/2011)
Tbale 1
Table1.Field1 Table2.Field2 Table3.Field3 Table2.field2 Table2.Field3
d1 01 26/03/2011 6.15 14.25
d2 02 26/03/2011 7.30 16.25
d3 03 27/03/2011
Inorder to get the above result, what query should i write?
i want to fetch data using datatable and print it into label.
View 1 RepliesI am using multiple parameter for binding gridview. i used following code for binding.
string constr = ConfigurationManager.ConnectionStrings["connect"].ConnectionString;
//string query = "select * from bug_details where (auditor_name=@auditor_name or @auditor_name='')and
(datee=@date or @date='')and((datee between @from and @to) or @from='' and @to='')";
string query = "select * from bug_details where (auditor_name=@auditor_name or @auditor_name='')and (datee=@date or @date='')and(datee between (@from or @from='') and (@to or @to=''))";
[Code] ....
If I enter date in txtfromdate text box in will get record from particuler date and if i enter date in both the text box it will get records between these two date and one more two text box may be empty also. How can I achieve this...
I have a small problem I want to fetch some data from sql table. Table looks like as
sno acno amnout cash
1 A-100 5000 withdrawal
2 A-101 7000 Deposit
3 A-100 8000 Deposit
4 A-101 6000 Deposit
5 A-101 1000 withdrawal
And i want to records something like this:
acno Deposit withdrawal
A-100 8000 5000
A-101 13000 1000
I am having dataset.xsd file which contain table-1 and thousands of record.The table contains rollno,name,mark and soon.If i give rollno means it automatically select name dfrom the table .How to perform this operation?
View 1 Replies[Code]....
View 2 RepliesI use below code in SP to count row of table and show it in label
ALTER procedure [dbo].[showMessage]
as
begin
SET NOCOUNT ON
select (select COUNT(id) from Message) as Message
,(select COUNT(id) from MessageM) as Messagem
end
[CODE] ...
Now I want define other label that shows total of these two table rows .I mean if in Message Table has 7 row and MessageM tabel has 8 row so
LblNMR =7 and LblRM =8
Now I want define LBLMAIN that in this label show LBLMAIN=15 total of 2 tabel Rows
How I can do it ?
i want fetch data from temp table in sql server stored procedur like below code
[Code]....
primary key is of uniqueidentifier in dataTable
How to Fetch Rows based on Values in a Session Variable
View 4 RepliesI am using C# + VSTS 2008 + .Net + ASP.Net + IIS 7.0 + ADO.Net + SQL Server 2008. I have a ADO.Net datatable object, and I want to filter out duplicate/similar records (in my specific rule to judge whether records are duplicate/similar -- if record/row has the same value for a string column, I will treat them as duplicate/similar records), and only keep one of such duplicate/similar records.
The output needs to be a datatable, may output the same datatable object if filter operation could be operated on the same datatable object.
What is the most efficient solution?
This is my GET Method to get my data from my DataTable
Private Function GetData() As PagedDataSource
' Declarations
Dim dt As New DataTable
Dim dr As DataRow
Dim pg As New PagedDataSource
' Add some columns
dt.Columns.Add("Column1")
dt.Columns.Add("Column2")
' Add some test data
For i As Integer = 0 To 10
dr = dt.NewRow
dr("Column1") = i
dr("Column2") = "Some Text " & (i * 5)
dt.Rows.Add(dr)
Next
' Add a DataView from the DataTable to the PagedDataSource
pg.DataSource = dt.DefaultView
' Return the DataTable
Return pg
End Function
It returns the DataTable as "pg"
What changes must I make to this GET method to get the records from a table in my database?
C# examples will also do but would be great to see a reply with my code and then the changes....
How to append a records from one data table to another data table.
In both the data table, I am having a similar columns.
i have a dataTable, which contains a column which has 100 rows, now i want to add those rows in ArrayList, but not with the Add Method, because i have to use for loop for adding records one by one, so i want to prefer addrange method of arraylist, so it is possible to add records in arraylist from DataTable using AddRange.
Below is the code which i am using.
Dim adapGetImages As New SqlDataAdapter("select distinct FileName from Files where Filename<>'' and (RIGHT(FileName,3) = 'gif' or RIGHT(FileName,3) = 'jpg' or RIGHT(FileName,3) = 'bmp') order by FileName", connection)
Dim dtGetImages As New DataTable()
adapGetImages.Fill(dtGetImages)
ArrayList1.AddRange(dtGetImages.Rows[0][0].ToString())
The last line is where i am stuck. as if i run this it will just add single row, and if i say dtGetImages.Rows.ToString() then this will just Add System.DataRow in Arraylist and not its content.
To write a join query with or condition. It means a query has two inner join, here it is possible to fetch the records, if one inner join is true and other is false. I got a record when only two join conditions are true.
View 1 RepliesI have a large DataTable cached in my web app that is the result of a complex query that returns a large data set. Whilst this data table is cached the query that runs to "refresh" this cache still takes a long time, largely due to the sheer amount of data being returned. In order to speed this up I am considering implementing a timestamp type approach to my tables in order to limit my query to only return rows which have changed.
I then intend to merge this smaller dataset with my cached datatable. Has anyone done anything similar to this, or is there anything out there that handles this already? I feel this could be a re-inventing the wheel situation if I dive straight in.
I have to filter the records from the data table based on the date.
I am having a column in data table called "cStartDate".
I will enter the begin and end date. I have to find out whethere the "cStartDate" is within the begin and end date i entered.
I am going to implement the filter logic in data table with out affecting the data base.
I need a Filter string for this.
I have seq no col in the datatable.how can i order by the seq no so that re-arrage the datatable.or other method have the sort function.and then bind to repeater.
View 3 Replies