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Using PagedCollectionView Filter Using MVVM

Posted By: Asim Sajjad     Posted Date: September 09, 2011    Points: 2   Category :Silverlight
When using data grid control there may be large amount of records in the data grid and to find out record which user is search is very difficult as he/she has to view every record to find out the desired record. So it is nice idea to have filter on the data grid records so the user can filter data grid records and find what he/she is looking in the data grid records

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Using PagedCollectionView To Group DataGrid Records Using MVVM

When using data grid control sometime we provide grouping of data so that user can see records in groups but the groups are predefine and If you don't want to see the group which we the developer or the client provide then he/she can't change. So here we can use approach to provide the grouping of data to the end user if he/she want to see the data grid records in groups then he/she can arrange records in groups but if he/she don't want to see the he/she can remove the grouping of records.

Display Total Records After Applying PagedCollectionView Filter

When we used the data grid control to show total number of records which are displayed in the data grid. But if you use or apply Filter to filter the records based on the user input then the number of records displayed in the data grid are changed which need to update as use changed the filter criteria.

WPF: If Heineken did MVVM Frameworks Part 4

MVVM is to have an instance of a particular Model (say currentPerson) inside my ViewModel (say PeopleViewModel) which is exposed to the View (say PeopleView). The View binds and edits the Model directly.

This definitely flies in the face of what most people consider to be the holy grail of MVVM pattern, but it's a fairly new pattern, so people are still finding their way with it every day, and this works for me very well. The reason I do what I do, is for the following reasons:

1.I have always had the luxury of being able to write my own UI specific Model classes. I would even do this if I was using some other Model classes first, such as LINQ to SQL or LINQ to Entity Framework. As these classes don't have everything a proper WPF Model class needs in my humble opinion. Though, they are pretty good, as they are Partial classes and use INotifyPropertyChanged/DataContract etc etc
2.I am a pragmatist and I do not like writing code for the sake of writing code. I have seen some MVVM apps where the author has had a Model with 50 properties on it, that are simply repeated in the ViewModel abstraction, where the ViewModel added nothing. On that day I decided I would never do that unless I have to.
3.I honestly see no harm in writing directly to the Model from the View, JUST SO LONG AS if the Model is InValid its data NEVER makes its way to the database. I honestly see no pro

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.

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
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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-


Can I use MVVM for it?


I've read many articles about MVVM, but I can't get it into real code.

I have two lists which have common field user_id. First list contains all users with their names and second all files from all users. The asp.net page should show grid with newest file for every user. How can I get it into MVVM? Where should I bind username to his file? Need I ViewModel for every list or one common for both?


Regards, Gabriel

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"
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            ReportSourceID="MemberList" ToolbarImagesFolderUrl="" ToolPanelWidth="200px"
            Width="1104px" />
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Problem 2 :

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



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

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?



MVC3: Define Dynamic ViewModel property inside Action Filter



How can I define a Dynamic ViewModel property in MVC 3 inside an action filter?

I am looking to have something like but inside the ActionFilter and not in the controller:

ViewModel.Title = "Home";

Thank You,


filter n compare between two table in resultset


Hi .. I have two table 

Say Table1 n Table2


Item              ItemName

001                 Laptop

001                  PC

002                  PC

002                  Printer

003                  Pendrive

004                  Keyboard

004                  CPU


Item                  ItemName

001                   laptop

001                   PC

002                   Printer

004                   CPU

Here am comparing table1 with table2

The Itemname which is available in both table1 n table2 should be dropout ... Other Item should be displayed ...

I need the sql result set like this :

Item                 &n

sqldatasource's filter returns too few records


I have a puzzling issue.  This is in asp.net 2.0, using vb.  I have a gridview that is bound to a sqldatasource.  Here is the datasource code:

<asp:SqlDataSource ID="fellowsSqlDataSource" runat="server"
        ConnectionString="<%$ ConnectionStrings:PFPFellowsConnectionString %>"
        ProviderName="<%$ ConnectionStrings:PFPFellowsConnectionString.ProviderName %>"
        FilterExpression="{0}"  >
            <asp:SessionParameter Name="psuaccessid" SessionField="username" />         

'asp' is an unrecognized tag prefix or device filter


Hi There,

I have been using Visual Web Developer Express Edition Beta 1 Refresh and Visual Studio 2005 Beta 1 for the past few weeks. For some unforeseen reason VS now reports the error -'asp' is an unrecognized tag prefix or device filter on all my .aspx pages.

The solution compiles and launches without any mishap and the only way to alter page control properties is in design view, as intellisense does not function due to the errors.

I've search the web and found a resolution which was to remove all files in the folder:

C:\Documents and Settings\[Username]\Application

But the issue still exists.

Any assistance would be greatly appreciated.



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