How do I refer to row index. I need to compare the data in the row before the active row in a foreach loop.
foreach (DataRow row in dtGCats.Rows)
{
tempCG_ID = Convert.ToInt16(row["CG_ID"]);
prevCG_ID = Convert.ToInt16( need row -1, row before above current row)
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 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 know the way how to find the value of a control in gridview RowDataBound()
as
<asp:Label ID="ControlId" runat="server" Text='<%#Eval("Field") %>'></asp:Label>
in RowDataBound() i can access the value as
Label lbl= (Label)e.Row.FindControl("ControlId");
But ,I want to access the value in gridview RowDataBound()
as
var value=eval("Field")
Is there any way doing like this ....
I need to access the previous page URL but because I am using a MasterPage, I am having difficulty achieving this.
Request.UrlReferrer
This only returns the URL of the current page.
I'm writing a web service that needs to query an Access 2003 database (.mdb). I've found the following code in doing some research on OLEDB connections and queries:
[Code]....
Errors are as follows:
Error 3 A field initializer cannot reference the non-static field, method, or property 'CompleteRentalls.completedb.sqlString'
Error 5 'CompleteRentalls.completedb.da' is a 'field' but is used like a 'type'
Can anyone help me rectify the above code such that the query results are returned to my datatable?
I've used PreviousPage Property to access the controls of the previous page but how can I access objects and instances of classes I initiated in the previous page!
View 2 RepliesI 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 RepliesI did a merge on 2 datatable. The result is as per After Merged below, but I expected to the result to be the Expected result.
Before merge
[Code]....
After Merge
[Code]....
Expected result
[Code]....
Could I receive datatable or datarow as objectDataSource update function parameter? I need it because I need the datarow verison functionality to detect change for a column in the update function logic.this is what i had tried:
[Code]....
After I setup the update function in the ObjectDataSource , its DataObjectTypeName has a funny name
[Code]....
I have a situation where I am accessing a database multiple times and I'm wondering if it is necessary.
I have a GridView with a template column with a hyperlink to "Get Results" and on the RowDataBound event I have it check the batch number against the database and see if results exist and then if they don't, hide the link.
So when viewing the page if there is 20 rows in the gridview it is effectively doing 20 queries.
I was wondering if it is a better idea to query the database once with all "batches" and load it into a datatable, then on the RowDataBound event query the datatable. The only issue I see with this is there is currently 40,000 batches and grows daily.
If I am going to access another page from previous page using response.redirect or server.transfer, What can I do so that the previous web page control can be accessed by the another page? Is it possible??
View 2 RepliesI'm using a wizard control with 4 steps, when I use the previous button to navigate back to the previous step the page reloads but at the bottom of the page.Instead of showning the whole of the page, the user views the footer of the site and the previous button and next button.I'm sure there is a very simple answer to this but I just can't figure out how to get the page to reload to the top.
View 8 RepliesI am trying to sort a DataTable. If I declare a DataView and use the following approach it works perfectly:
Dim dt As DataTable = getData()
Dim dv2 As New DataView(dt)
dv2.Sort = "surname, name"
dt = dv2.ToTable
I wanted to do this without using a DataView though if possible to reduce the impact on resources. I tried the following approach but it doesn't work. I might be writing the code wrong so
Dim dt As DataTable = getData()
dt.DefaultView.Sort = "surname, name"
How do I sort a data table based on a particular column which has integer values in ascending order?
I wrote this:
leadtable.DefaultView.Sort = "Id"
But it doesnt seem to work, it displays fine but when i get try to get the values of the sorted datatable in an array they dont come in an sorted ordere Datatble is defined as:view plaincopy to clipboardprint?
I have a DataSet comprised of two DataTables. One of the DataTables is further comprised of the results of two different SQL calls. I need to alphabetize the results of those SQL calls. After the seconds set of results is added to the DataTable I tried the following but the end result (displayed on the page) did not alphabetize the returned results. There was no error. Can anyone advise me please. 'programs' is the DataTable name, title is the column name.
programs.DefaultView.Sort = "Title ASC";
Dim dt as datatable = test.select()
dt.DefaultView.Sort = "col1 ASC"
for each dr in dt.rows
response.write(dr.item("col1"))
next
I had found out the sorting command is "dt.DefaultView.Sort", but why is it not working. Can someone shed a light.
using linqs how to fill datatable using linq to sql in asp.net
i have one storedprocedure to select data from table
and one s.p for insert the data and one for update the data
how i use these s.p to insert and update the data using linq. to sql
I am gettin error in this code
[Code]....
iam working with gridview in asp.net3.5,Sqlserver2008 I am retrieving data from a SP into a datatable.i need to store this table into gridview. but am getting the last row from my datatable into my gridview.
here i need to add each row to the datatable.
my grid is like this:
[Code]....
My web application calls a stored procedure and stores the result in a .NET datatable. I'd like to use this datatable and join it with other tables in my database. Is this possible?
Would the best way to set this up be to create another datatable and then use a dataview to join both datatables?
i have a column seq_no in datatable. if the column with data 2,4,5 how can i have the max number of the column. C#
View 5 Repliesis it possible to bind DataTable to ObjectDataSource?
View 4 RepliesI have TWO SQL tables (tbl1 and tbl2).
In tbl1 I am writing client's name, phonenumber. tbl1 also has auto increment column whose value is extracted by using SCOPE_IDENTITY.
Now here is the problem, I have DataTable "dtbl" which I have to write to tbl2, this dtbl can have any number or rows. What is the best way to write the whole dtbl to tbl2.Also I have to do RollBack if any error occurs. Here is the flow which I have to achieve..
System Status = CURRENT
*write clients to tbl1 (get Identity column value)
*write dtbl to tbl2 (in case of any error, rollback to System Status = CURRENT)
dataTable with dataReader not working
[Code]....
How can I filter two different datatable in a single dqatatable? like consider I have following two datatables
DataTable A DataTable B
PID | CID CID | FID
1 | 1 1 | 1
2 | 2 4 | 8
4 | 16 16 | 32
So after filtering I can have a output like
DataTable C
PID | FID
1 | 1
4 | 32
So in my filtered dattable I can have only matching results of datatable A and Datatable C? How can I do this using .Net datatable?