Getting The Total Number Of Records In A Database Table?
Oct 20, 2010
How could I get the total number of records present in a database table through asp.net in VB? I know about setting up and opening a connection. I wanted to loop through records, so wanted to know the number of records present. How could that be done?
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"
objCmd.UpdateCommand.Connection = Conn
objcmd.update(ds,"tblusers")
where objcmd is an instance of oledbdataadapter object)
What should I do to delete a record or a field in a data source through asp.net?
I have a aspx page where i have connected to a database using MS Access. I want to display total number of records in the products table & number of records the product Table holds inside.
I am using a gridview with inbuilt paging whose data source is an objectdatasource. i simply need to show the total no of records present in gridview in a label. when i use gridview1.rows.count then it will return only the total no of records present in that page. Is there a way to find out the total number of records present in gridview or in objectdatasource.
I am working on gridview, i want to add the total number of records in the gridview footer which are returned by the query, and also want to see the curretly showing records, suppose if we have 50 records i want to display them as viewing 1-10 of 50 records. i need to display like this of similar to this format
How to display the total number of records returned in a GridView in asp.net? I want to display it in a label or if possible next to the page index in GridView... And how to provide a select option in a GridView to select all records (It should select not only the record shown in one page in GridView but all records that were returned to the GridView) or one by one record that was returned? These things (for e.g., Number of selected rows) should also be displayed in the label which I mentioned before.
i want to display the number of rows at my table in a Label when the page is on load.
so can u give me the code or the hint?
my second question is.
my table has around 50,000 items.
and i have a search box, it look like this
str= select * from mytable where item='car'
the item Car is located in my table in row number of 45,000.
i guess when i search from the table where the item is car, then it will search row by rows, then as the number of rows become huge, it will be so late to find the result.
so is there any method how to search from table with good speed of searching?
I am doing a project where I need to be able to pick a records from a dropdown list and then have the rest of the records in the database display below in a table.
I attached an image of what i have so far which is the dropdown box and the table of data, but whenever i pick another item from the dropdown box it doesnt update the data listed below.
I have a web user control with DataList control in it. In my .aspx page, I have a report header, an empty panel as a place holder, a report footer.In my .aspx.vb file, I'll loop through a list of departments. Within each department, I'll load a label to display the department name and the user control for the data, and add both the label and user control to the panel. So there are two variables: the number of departments and the number of records in a user control.
Now I need to display the current page number and the total page number in the report footer. Is it doable? How? I'm thinking of this approach: declare a page variable count, count the number of department name labels and the number of records in a user control. When the total count reaches a number, such as 20, I'll break the page. This way, I can get the the page current number and the total number of pages. But how to add a page break to an asp.net page?
I am a beginner in ASP.NET using VB Code. I want to generate a Unique reference no by concortinating three column fields.Example:
Column unique reference no (System Generated) - 10 Column with Product Code (User Entry) - APPLE Column with Product Title (User Entry) - FRUITS Unique ref No = FRUITS/APPLE/10
I want to concatenate this three fields to the column Unique Ref No.
i've connected my crystal report to my database using database experts. now my problem is i want to display the total no of records..in each page .. i.e in database there are 50 records when i execute..it takes two page to print..now in first page there are 30 records and in second page there are 20..i want to display the value 30 at the end of page and 20 at the end of page.i.e how much the page contains the records that much it should print in page footer
I am creating a leave form for employee where i am using datetimepicker to select date from, to etc..
from that i have automatically calculate the no of days and display in an textbox.. for eg: From date:06/01/2010 To date:08/01/2010, if u select like this, i have to automatically calculate the no of days between that and display in a seperate texbox as 2.
I am using a drop down lists for selecting the month and year in .aspx page. I have to get last date of the selected month of particular selected year in .aspx.cs page. (some months have 30 days and some have 31 days)
Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Label3.Text = GridView1.Rows.Count.ToString() End Sub
One of the reports I am creating has dynamic number of columns - a datatable gets returned from the stored procedure, the number of columns depend on the number of items defined in the database (one column for each item, other than some fixed columns). Is it possible for me to use RDLC report to generate a report in this case? All the calculations are already done int he report, I am looking at RDLC only for the sake of export to excel/pdf and repeating header/footer.
i am wishing to count total number of visits on any particular page with also the ability to work when IIS reset is done, i think by using database we can solve it.
how to count total number of visits on any particular page?
How I can set the total recoreds at the gridview footer which has a Gridview AllowPaginning=true and RowFilter at A View which I bind it to the gridview
in other words how I can get the total records of the View {View of datatable} after applying the rowfilter expression on it.
I have a datagrid control which is bound to a table which containing more than 1000 records. And i want to show only 25 records once a time. I have used paging in datagrid. But each time the next page index is set, query is fired again. This takes lots of time. So what is the easiest way to bound data in this case to improve performance.
