What I want is to filter the dataview so I get top 10.
I googled it and found out that I had first to sort the dataview. Then add a column (int) to datatable. This column I then made a AutoIncrement on......
This works fine - I can see in the codebehind that it adds a column to the datatable that I called AutoInc.
Then make a RowFilter on the dataview - here it goes "wrong" for me.....
When using the line
datVie.RowFiler = "AutoInc < 11";
and bind it to a gridview I don't get a error - but it also don't show me any rows in the gridview...... If I comment the line out - I get all the rows in the dataview..
Title Return Type The Inception 1 NFS 2 Tron Legacy 1 Documentary 3 Roadrash 2 I want to pass this object to a method which modifies it using linq query to return the Dataview object as below(without using loops anywhere in the code) Title Return Type The Inception Movie NFS Game Tron Legacy Movie Documentary Others Roadrash Game
I have a DataView which has been populated with a list of files from a database table. I want to iterate through the DataView to see if there are any files there of a particular type, and if so, do something with that record, and then remove it from the DataView.
I've coded this as follows, but there's something missing - I can iterate over an object and then remove an object from it, since that will affect the iterator.
DataView dv = new DataView(); dv = ds.Tables[3].DefaultView; dlFiles.DataSource = dv; dlFiles.DataBind(); for (int j = 0; j < dv.ToTable().Rows.Count; j++) { if (dv.ToTable().Rows[j]["FilePath"].ToString().ToLower().Contains(".pdf")) { //do something with this record and remove it from the dataview } }
As a note, dlFiles is a DataList used to display the the items in the DataView. The files removed are displayed differently, and so should not be referenced when iterating through the DataList.
How to select top n rows from a datatable/dataview in asp.net.currently I am using the following code by passing the table and number of rows to get the records but is there a better way.
public DataTable SelectTopDataRow(DataTable dt, int count)
{ DataTable dtn = dt.Clone(); for (int i = 0; i < count; i++) { dtn.ImportRow(dt.Rows[i]); } return dtn; }
I want to check that the row index I specify is below the row count so it doesn't throw the error
Index 2 is either negative or above rows count.
how would I achieve this with my code?
Using connection As New SqlConnection(connStr) Dim command As New SqlCommand command.Connection = connection connection.Open() Dim a As New SqlDataAdapter("SELECT top(3) name, (SELECT TOP (1) ImageId FROM Images WHERE(productid = products.Id)) AS imageId FROM Products WHERE beginnerdiscount = '1' ORDER BY Dateadded", connection) Dim s As New DataSet()......
I have a DataView object with productID and productName,i get all items from Products Table and store them in Cache.I want to get items that user bought in order he bought them without using another query or joining tables. ie.
Products DataView 1. Foo 2. Foo2 3. Foo3
Filtering to ProductsBoughtByUser using RowFilter (productID in (1,3)) UserProducts DataView 1.Foo 3.Foo3
Now user first bought Foo3, how do i reorder items based on correct ( chronological ) Array. ie 3 1
I am using VB. ASPNET2008 to develope Web Application. I am not sure whether to insert control DATAGRID or DATAVIEW. Also, what Reference Library am I supposed to use in order to use the Control.
Is there a straightforward way to create a dataset after querying a dataview? The query itself returns DataRowView objects, which I cannot get to work with CopyToDataTable().
The query looks like:
Dim dvQueryView As DataViewdvQueryView = (dataview object of large dataset) detailTableQuery = From rowView As DataRowView In dvQueryView _ Order By sSortOrder _ Select rowView _ Skip nQuerySkipRow _ Take nQueryCountRows
I only want a small selection of records from the large dataview and use those to create a smaller dataset. The large dataset stays in place while multiple views are created from it, and then from those views I want to create the smaller datasets.
I have a json service method that returns an object with two properties. The first property is called Rows and contains the list of objects I want to bind to the dataview. The second property is TotalRowCount. It is a paging method. How can I tell the DataView to bind to the Rows property? This is what I have so far...
I'm using Sys.UI.DataView and i have input of type text. I bind this input using live binding syntax and it works, but i want to add to this input autocomplete funcionallity.The problem is that autocomplete extender needs server side asp:TextBox and i can't find how to implement livebindng on this server control...
I'm just learning MS ajax and am having problems getting a relatively simple test to work. I'm attempting to call a web service (of the .asmx variety) to return a very simple 3-column table to render in a dataView in an .aspx page. I've successfully created a working service and can by stepping through the service code it's getting the data correctly. The problem I'm having is that it stops with an exception in MicrosoftAjaxDebug.js on this line:
[Code]....
where my user_table contains 3 columns: user_name, user_key, user_ID. Real simple.My test.aspx page to get this data looks like this:
[Code]....
One more thing, I'm a little confused between the two downloads I've found, "MicrosoftAjaxLibrary_Preview6.zip" and "AspNetAjaxLibraryBeta0911.zip". From what I can tell, the latter contains all the old Ajax toolkit gadgets as well as the MS Ajax scripts. Is the MS Ajax download just a refresh of the ajax scripts in the Asp.Net ajax library? I've installed and am using the preview 6 scripts for my website.
This is in the codebehind of a page containing a gridview. The gridview has been customized to include two hidden fields hfsearchtext and hfsort that are used to search my database table and return results to the gridview through the use of a DataView.
As I'm new to this type of construct, can someone walk me through the code above? I receive an error message stating that the Value of System.Web.UI.DataSourceSelectArguments cannot be converted to an integer. How to rectify this error?
