How To Filter A List With List Using Linq
Jan 19, 2010
I have a list<string> which have a bunch of Employee Names
Second, i have a list<Employee> (employee object )
Employee.Employee Name
Employee.status ........
Now
how can i filter list<Employee> , so that i can have the list with only the names from the List<string>
View 8 Replies
Similar Messages:
Jan 7, 2011
I am trying to create an MVC List View that can be filtered by the value selected from a drop down list.
Selecting a value should repost the page ... Since there is no concept of view state data I am having some issues with this ... I can get the repost to take place but my drop down resets and I am not able to get the value that was selected.
ASSET CONTROLLER:
[Code]....
[Code]....
I have tried many of the posts that refer to setting up drop down lists but can't set them up in the content because this is a List View.
View 8 Replies
Jan 12, 2010
In my web application, their is a drop down list item that contains arround 5000 items, and becuase of this the viewstate grows upto 160 to 180 kb and my sever reponses a viewstate error...
View 5 Replies
Jul 19, 2010
I am looking for a filtering mechanism, as the user types in the drop down box I want to filter the list to the list items that match what the user is typing. Is there any premade control for this or does anyone know the best way to achieve this feature?
View 1 Replies
Mar 2, 2010
i have an List<String> lstrings which contains a list of strings. If i want to write a linq query on a list<Employees> employees to filter for employees.name in {lstrings} var lquery = (from e in employees where e.Title =="ASP.NET" && e.Name.Contains(lstrings) select e); Im trying to filter the employees using a list of strings which match with the employee.Name
View 5 Replies
May 7, 2015
As per ListBox Items a data should show in GridView by using UP and Down arrow keys. I tried by using Oonselectedindexchanged but when a page loads from listbox the cursor become active to inactive.
View 1 Replies
Apr 24, 2010
I have a Gridview with a parameterized SQLdatasource. I want the Gridview to be filter when the a selection is made from the dropdown list Here is what I have. I am missing something.
<asp:SqlDataSource ID="SqlDSAlbums" runat="server"
ConnectionString="<%$ ConnectionStrings:Default %>"
SelectCommand="SELECT Album.Album, genre.Genre, Band.Band, Album.year, Album.AlbumUID FROM Album INNER JOIN Band ON Album.BandUID = Band.BandUID LEFT OUTER JOIN genre ON Album.GenreUID = genre.GenreUID WHERE (genre.Genre = @Genre) OR (genre.Genre <
'ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ') ORDER BY genre.Genre, Band.Band"
ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>">
<SelectParameters>
<asp:ControlParameter ControlID="ddlGenre" Name="Genre"
PropertyName="SelectedValue" />
</SelectParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="SqlDSGenre" runat="server"
ConnectionString="<%$ ConnectionStrings:Default %>"
SelectCommand="SELECT Genre, GenreUID FROM genre Order by Genre"></asp:SqlDataSource>
Select a Genre
<asp:DropDownList ID="ddlGenre" runat="server" DataSourceID="SqlDSGenre"
DataTextField="Genre" DataValueField="Genre" AppendDataBoundItems="True"
AutoPostBack="True">
</asp:DropDownList>
<asp:GridView ID="gvAlbum" runat="server" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False" DataSourceID="SqlDSAlbums">
<Columns>
<asp:BoundField DataField="Album" HeaderText="Album" SortExpression="Album" />
<asp:BoundField DataField="Genre" HeaderText="Genre" SortExpression="Genre" />
<asp:BoundField DataField="Band" HeaderText="Band" SortExpression="Band" />
<asp:BoundField DataField="year" HeaderText="Year"
SortExpression="year" />
<asp:TemplateField HeaderText="Comments">
<ItemTemplate>
<asp:HyperLink ID="hlToComments" HeaderText="Comments" runat="server" NavigateUrl='<%# String.Format("ViewComments.aspx?AlbumUID={0}", Eval("AlbumUID")) %>' Text="Click Here" />
</ItemTemplate>
</asp:TemplateField>
View 4 Replies
Jun 25, 2010
Introduction:In modified list page I have html controls to filter data in table. By default data in main table is not filtered. This page can view and filter data authenticated && non-authenticated users. For storing membership information I use ASP.NET membership.
Question: My Simple Grid table:
<table>
<thead>
<tr>[code]...
Also have simple html elements to filter data in upper table after button click. After user click on "City name" page redirrects to Details Page. And in Details page user can click on button Back to List. How to save previous filter options, when user clicked on back to list button. Now in when user clicked on btn "back to List",
table loaded with default data (it is bad).
Aim: How to realize saving previous post for registered and unregistered users, if this tables more in other pages (not one).
Also, how to realize saving optional parameters registered users.
Notes:
I use SQL Server 2008.
View 3 Replies
Jan 15, 2011
how to implement a filter feature like this? What Ajax or JQuery controls can be used for this (if any)?
Here is an example of how the UI might look like:
See the Exchange Management Console image:
[URL]
Here is the spec:
The ASP.NET page has a "Filter" component and a "Apply Filter" button. The "Filter" component consists of 4 UI controls as below:
1. A dropdown list with prepopulated values like "Name", "Department", "Building", "Email Address".
2. A dropdown list with four operators - "Equal", "Not Equal", "Like", and "Not Like"
3. This is a dynamic control. It could be a textbox or a dropdown list. If the user chooses "Name" from the first UI control, the third UI control will become a Textbox. If the user chooses "Department" from the first UI control, the third UI control will become a dropdown list with all departments within this company pre-populated.
4. A button with AND expression. If the user clicks this button, one more Filter component will be created.
One possible user case is like this:
ASP.NET: when the page is loaded, it displays one Filter component (3 UI controls and a AND button), a "Apply Filter" button, and an empty "Filter Result" data grid.
View 2 Replies
Aug 4, 2010
I have a listview that is displaying records currently based on a dropdown.. works great.. now, within those results returned, i would like to filter down some more.. How can i add a dropdownlist to the page that is populated with data from the listview(only 1 field would be used to create the list ) and if you chose to filter by that drop down, then the listview is revised to display only records with the selected value.
Example..
Currently you pick from a drop down.. Report#1, Report#2 or Report#3 Say report#1 returns 100 records.. and the field im going to be filtering on is my "Vendor" field.. so once my listview displays my results, a dropdownlist is populated with all the vendors that were returned with the query.. could just be a few..
Now you are sitting there paging thru all the records.. and realize you really just need to see out of the 100 records, records that belong to Vendor#3, so you pick #3 from the drop downlist and the procedure is called again now filtering on that vendor..
View 21 Replies
Feb 18, 2011
I have below class and function. Could I use LINQ to select from class list?? What the syntax should be??
class ItemsPromo
{
public long itemID;
public long promotionID;[code]....
View 1 Replies
Jun 23, 2013
I have a form where i want to view all columns from a table.I have a textbox and differeent radio button having values of each column.On click of button.I want to view all the columns as per selected row/rows from value given
View 1 Replies
Nov 23, 2010
I have declared a simple class
[Code]....
And Pass some values to it :
[Code]....
Then I use Linq to select rows :
[Code]....
How I can enumerate it?! I used this, but it has error
[Code]....
View 3 Replies
Aug 11, 2010
[Code]....
say i have the code above which adds a single row to a list how would i add all the information in a linq query or a var to the list?
View 2 Replies
Nov 6, 2010
There is a session on a web form that holds the holidays of a year.I just intend to remove any repetitive days.... but couldn't get index of item in list.
Protected Sub PersianDateCalendar1_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles PersianDateCalendar1.ValueChanged
[Code]....
End sub
View 3 Replies
Feb 10, 2011
I have a no. of records being inserted in a List<>.I have IQueryable returning more then one recordI want to check whether the records IQueryable returns are present in the list or not?
View 1 Replies
Dec 8, 2010
I have a class Trans with various properties, including a boolean named Deleted.I have a generic list of Trans that are loaded from the database. I want to use linq to set all the Trans in this list to Deleted. Can I use linq to do this?
[Code]....
View 3 Replies
Mar 5, 2010
I have list of words. I type in a word misspelled. Can I query the list using linq to get words that sounds like (soundex) the misspelled word?
View 2 Replies
Sep 20, 2010
I have zero experience with LINQ but had occasion to use it today. I implemented a working solution but do have a question.First, let me provide the background:I have 20 large web pages that altogether have several hundred data input controls on them. There are strong similarities between how each type of control is handled. Rather than wire up each control individually (ie. hard code it in the layout page)
foreach (View view in multiView.Controls)
foreach (Control ctrl in view.Controls)
switch (ctrl.GetType().Name)
case "DropDownList":
DropDownList ddList = (DropDownList)ctrl;
[code]...
View 1 Replies
Jun 20, 2010
I want to create something like this using a DataList and Flow markup:
|-----------------------|
| Title |
|-----------------------|
| [x] Title |
| [x] Title |
| ... |
-------------------------
I have a table (modeled in Linq2Sql) Foo that has these fields
int id;
int? parentId;
string title;
Foo Parent;
EntitySet<Foo> Children;
Now, when there is a null parent, it means it's a top level category, and if the parent has a value, it's part of the category list.
I have created a DataList, and used a LinqDataSource with a query that looks like this:
[Code].....
This obviously doesn't work. How can I utilize the Children collection in a repeater of a DataList item?
View 1 Replies
Aug 31, 2010
Is there a way to use linq to get a list of textboxes in a web page regardless of their position in the tree hierarchy or containers. So instead of looping through the ControlCollection of each container to find the textboxes, do the same thing in linq, maybe in a single linq statement?
View 2 Replies
Oct 27, 2010
I am using Linq To Sql to get List of objects with data from database. To bind data with a grid view i am creating a dataset explicitly and then adding List values to that explicitly created dataset.
Now my question is whether it is a good pratice to do what i am doing (in terms of resource utilization) or is there any better way to this...
View 6 Replies
May 8, 2010
I am trying to create linq from A list:
[Code]....
But I always get this error:
[Code]....
I'm using this class to do search:[URL]
View 8 Replies
Jun 24, 2010
I have the following one-to-many relation between two objects.
Parent
--> IList<Child>
Now, I have a List of Parent objects and I want the First Child of each parent in the list.
What is the best way to do this using Linq?
View 3 Replies
Jan 26, 2010
How do you create a databound checkbox list using linq-sql and asp.net mvc
View 1 Replies