ADO.NET :: How To Get The Number Of Records In An Entity
Dec 26, 2010How do I get the number of records in an entity?
This was so simple in VB6.....
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Also, I used statements like 'Update' and 'Insert Into' to to change the data in my data source. Like I updated a certain field like this:
ds.Tables("tblUsers").Rows(2)(3) = "xyzzzz"
and then I executed an sql statement on the same field like this:
objCmd.UpdateCommand = new OleDbCommand
objCmd.UpdateCommand.CommandText = "Update tblUsers " & _
"SET City='xyzzzz' WHERE UserID=3"
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where objcmd is an instance of oledbdataadapter object)
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Count Number Of Records In Data Source
Sep 22, 2012(Visual Studio 2012 VB, MSSQL 2008)... Is there a way to count the number of records in a sqldatasource without displaying a grid on my page?
Code:
<asp:SqlDataSource ID="sqlMessages" runat="server" ConnectionString="<%$ ConnectionStrings:DBConnectionString %>" SelectCommand="SELECT * FROM [Messages] WHERE ([SentTo] = @SentTo) ORDER BY [MessageDate] DESC">
<SelectParameters>
<asp:SessionParameter Name="SentTo" SessionField="MemberID" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
How can I get the number of records that are returned? another question I have a field "MessageStatus" how can I get the number or records that are listed as "new" as well...
Here is what I would like to display...
lblMessages.text = "Total Message: " WHAT DO I PUT HERE "Total New Messages: " WHAT DO I PUT HERE????
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QID Question Status
1 ssssss True
2 ssssss True
3 ssssss False
4 ssssss False
5 ssssss False
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IF EXISTS(SELECT 'True' FROM MYTABLE WHERE ID = @ID)
BEGIN
--This means it exists, return it to ASP and tell us
SELECT 'This record already exists!'
END
ELSE
BEGIN
--This means the record isn't in there already, let's go ahead and add it
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Mar 25, 2011using sql server 2005.
i need to query a table which normally will return multiple records for the id and I need to loop through probably using a cursor and pull values out from each record to make a string.
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Here is what i have, but is returning incorrectly, way to may records, seems to be stuck in a loop.. then below that, i have one that returns the correct number of records, but everything except one column is duplicate, all the TR columns should be unique in the values stored in them.. the rest should all be duplicates, just because its the same vendor, so all the other information will be generic information about that record.
[Code]....
This FROM and WHERE return the correct number of records, but the fields are all duplicated except the last column with is transaction_date, seems that the 3 TR fields are being populated with the first records data or something.. not sure.
[Code]....
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I have an email field, of course, and a 'fail' field (integer)
Each time I send out an email, I get a bunch of emails back that the email addresses were undeliverable, so I'd like to (manually), enter them all into an array (or whatever), and then run a stored procedure which updates the 'fail' field by 1
I'm looking for both on the SQL side (I have an sProc that does the deed one at a time - just need the logic to do it in a batch like this), and how to do it in the web page.....
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My questions are these...
Is there a better way to handle this quantity of records than a stored proc and combobox? A
ny examples of a method to populate a certain number of records then filter based on user action?
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Aug 18, 2010I am trying to add a label in my gridview that counts the number of records that are being displayed as well as the total number of records found via the datasource. and i want this label to be displayed in the pager template of the gridview i.e. at the bottom.
I have the following code:
[Code]....
which i run in the rowdatabound method of the gridview. but when i run it it comes up with an error saying "null reference exception handles by code".i think the error lies in not being able to count the total number of rows in the sqldatasource in the int variable intTotalRecords. How do i go about counting the number of rows in the datasource that i am trying to pass in?