.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Filter a Listview

Posted By:      Posted Date: September 14, 2010    Points: 0   Category :ASP.Net
Hi, I have a listview with a paging control. All works fine but I added a dropdowncontrol to be used as filter. The dropdown has a distinct query to show type user profile (male/female/kid/unisex). I add a listitem "select" using prerender. prerender:Protected Sub DropDownList1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList1.PreRender If (DropDownList1.Items.Count > 0) Then If (DropDownList1.Items(0).Text <> "All") Then DropDownList1.Items.Insert(0, New ListItem("All", "")) End If End If End Sub  Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged ListView1.DataSource = SqlDataSource3 ListView1.DataBind() End Sub and sqldatasource3:<asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$ ConnectionStrings:MyShopConnString %>" SelectCommand="SELECT * FROM [vw_Product] WHERE (([Cat] = @Cat) AND ([gebruiker] = @gebruiker) and visible=1)"> <SelectParameters> <asp:QueryStringParameter Name="Cat" QueryStringField="Category" Type="String" />

View Complete Post

More Related Resource Links

dropdownlist filter listview

I want to filter the table in my Listview (mvc2) using values from a dropdownlist shown at the top of the page. The values in the list are hard coded. Next to the dropdownlist I got a "Filter" button that calls the filter method on the controller   How can I pass the selected value from the list to the controller? for now I'm using a classic asp:dropdownlist<form runat="server" method="post"> <asp:DropDownList ID="dropdownlist1" runat="server"> <asp:ListItem>Item1</asp:ListItem> <asp:ListItem>Item2</asp:ListItem> <asp:ListItem>Item3</asp:ListItem> </asp:DropDownList> <input type="submit" value="Filter" onclick="this.form.action='/Home/Filter'" />   thank you

Filter a ReadOnlyCollection for binding a ListView

I have a ReadOnlyCollection<myobject> being generated in my business layer. I want to bind a ListView to it, but only show elements that have myobject.myvar = true. How can I do this?

Using ASP.NET 3.5's ListView and DataPager Controls: Displaying Data with the ListView

Prior to ASP.NET 3.5, developers who needed to display a set of records could choose between the GridView, DataList, and Repeater controls. The GridView provides rich data features, but has a very boxy layout; the DataList and Repeater allow for a more flexible layout, but lack the "point and click" data features found in the GridView, DetailsView, and FormView controls. The ListView bridges the gap between layout flexibility and built-in data features.

This article, the first in a series of articles on the ListView and DataPager controls, looks at the ListView's many available templates and illustrates how to display data. Read on to learn more!

Using jQuery to Filter Table Rows

The project is using the .net GridView control, so I had limited control over the output HTML code. Still, I think this code can work for most tables. One thing to notice: you should use the class "filterable" on your table or on one of its parents for the code to work.
First, we need a text box:

GridView Multiple Filter AJAX Control

This AJAX control enables the user to filter data within any column inside a GridView. The user can add multiple filters and can delete existing ones too.

WPF Tutorial - Using The ListView, Part 1

Many of the controls in WPF have a downright dizzying array of capabilities and features, due in large part to the composibility of all the components. The ListView control is a great example of this - the possibilities are almost endless. This series of tutorials on the ListView will hopefully make the space of possible options seem not quite as daunting

How to listen to events within a listview



I've got a listview and I've put a button control in one of the columns, I'm trying to figure out how I have listen to the button click within a certain row, but can't see the button in the dropdown for the IDs I can generate events for.

I'd like to get the primary key of the row that's been clicked on and then run a sql statement against it.

Any help would be appreciated.

ListView DataPager with SQL-Statements that already return only paged data.



As far as I understand the ListView-Control and the DataPager-Control, they work like this: The ListView gets its datarows from its data source, then the DataPager causes the ListView to display only a subset of those rows.

So what, when I want to use custom databinding for the ListView, that *already* gets the certain subset from SQL-Server (for better performance). Can I and how can I use the DataPager then?

Thanx, S.

Where to Filter the companies returned by the EF?



I am just starting with dynamic data. I have an enttity framework called UsersModel.edmx.

It returns a list of all companies in the tblCompany table. This list is really big.

I need to filter the list returned to all user controls on the client so that it only returns the company that have a CompanyTypeId= 2 or CompanyTypeId= 3 and company name != "".

1 - Is it possible to filter the company list returned on the server so that I can filter only once for all the controls that use that on the client?

My ideas was to do something like this using linq and lambda but I am not sure how:

return tblCompanys.Where(c => c.CompanyTypeId == 2 || c.CompanyTypeId == 3 && ).Where(c=>c.CompanyName != "").OrderBy(c => c.CompanyName).Distinct().OrderBy(c=>c.CompanyName);

2 - I have created a partial class and a metadata class and added the DisplayColumn attribute to use the company name and sort by company name ascending.

Could I use the code to filter the returned companies in this? where?

namespace MarsMedicalModel
    [DisplayColumn("CompanyName", "CompanyName")]
    public partial class t

Filter by Computed Column



After looking for a driver to open legacy dbf drivers to connect, the next level trouble a have is this one:

first, i can retrieve the data but when trying to filter by a parameter (somesc columns) i get an error.

The error says about the database can't determine some blah blah!

The error is a columm tha is formated (  1234  ) about  8 space, fixed. The values in the query appears like that. I resolve this by Trimming Ltrim(ColumnName) and i get this (1234).

Now in SqlExpress, how can i filter by the new Trimmed Expression? (This is a primary key that the DBF use)


SELECT column1, column2, column3


SELECT Ltrim(column1) as NewExp, column2, column3
Where NewExpre = @NewExpres                  -Error-


LDAP nested groups filter


Hi all,

In my organization we use nested groups.

For a particular usage, we have a group (let's assume that the group name "kuku"), and the names of all the nested groups under it contains "kuku" as well.

We may assume that no other group in the LDAP has "kuku" in the name.

I need to create a filter which will return all the users which belong to one of the "kuku"s group.

Obviously, using this filter will bring only the head kukus

(&(&(objectclass=user)(objectclass=person))(memberOf=CN=kuku,cn=.rest of the group DN.))

How can I use wild card to fetch all users which belong to any kuku?

For example: (&(&(objectclass=user)(objectclass=person))(memberOf=CN=.*kuku.*))



Urgently Need Help : Unrecognized Tag Prefix or device filter 'CR'


I have download and installed the Crystal Report for 2010 from my Visual Studio 2010. 


Problem 1 :

When I create a new crystal report in the Project, the aspx created code below :

<CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server"
            AutoDataBind="True" GroupTreeImagesFolderUrl="" Height="1202px"
            ReportSourceID="MemberList" ToolbarImagesFolderUrl="" ToolPanelWidth="200px"
            Width="1104px" />
        <CR:CrystalReportSource ID="MemberList" runat="server">
            <report filename="MemberList.rpt">

 but there is error : unrecognized tag prefix or device filter 'CR'


Problem 2 :

The vb code of the crystal report that I had created has 'ComponentModel is not a member of 'MYPROJECT.system'



Cutting Edge: ListView Tips and Tricks


This month, use nested ListView controls to create hierarchical views of data and extend the eventing model of the ListView by deriving a custom ListView class.

Dino Esposito

MSDN Magazine April 2008

ISA Server 2004: Developing an Application Filter for Microsoft Internet Security and Acceleration S


The beta version of Internet Security and Acceleration (ISA) Server 2004 is now publicly available. It includes a rich SDK with several extensibility mechanisms that allow third parties to integrate their specialized solutions on top of the ISA platform. In this article, the author explores the application filter extensibility mechanism, which enables you to add high-level application layer filtering capabilities to ISA Server and to provide rich content filtering solutions. He also highlights the new features of the ISA Server 2004 SDK, then moves on to describe how to develop a basic application filter that monitors all data going through the ISA Server, and how to integrate a filter into the ISA Server management console to create a seamless interface experience for your users.

Yigal Edery

MSDN Magazine March 2004

ISAPI Filters: Designing SiteSentry, an Anti-Scraping Filter for IIS


The Microsoft Internet API for IIS, ISAPI, sits between the client and the Web server. Therefore, you can access the HTTP data stream before IIS gets to see it. The project in this article takes advantage of the ISAPI architecture to create a filter that monitors access to a Web site to determine if visits are from typical users or from automated processes designed to pilfer information from your site. The author tracks the regularity of visits to the site to determine the likely source. Once the determination is made, the app either redirects the user or continues to track information about those hits.

Rodney Bennett

MSDN Magazine October 2001

Programmatically Simulating the ListView's ItemCommand Event


I have a User Control that contains a ListView.  In the user control's code is this event handler:

    protected void listView1_ItemCommand(object source, ListViewCommandEventArgs e)
      Button_ClickHandler(source, e);

What's occurring is that I'm explicitly firing an event so that the parent web page can monitor this and take appropriate actions.  Thus when the user clicks on a different ListViewItem it triggers the population of associated data elsewhere on the web page.

This all works fine except for one thing: When I first load the control I'm pre-setting the first ListViewItem.  Unfortunately, just setting the ListView's SelectedIndex = 0 doesn't fire the aforementioned event handler.

So I started investigating how to call "listView1_ItemCommand" but couldn't figure out how to instantiate the "e" parameter.

Any ideas of how to resolve this?


MVC 3 Preview 1. Inject value in Action Filter



I was reading MVC3 Preview 1 release and I found this:

Dependency Injection at all levels - We opened up seams for applying the dependency injection when instantiating components of the framework. This allows developers to hook into the creation of models during model binding, action filters, etc.

Does that mean I can inject a value into an Action Filter?

This is a problem I have for a long time and it would be really useful.

How can I do this?



ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend