Web Forms :: Select CheckBoxList Items Based On LINQ Query Results

Apr 29, 2010

[Code]....

using System;
using System.Collections.Generic;
using System.Linq;
using System.Data.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace find.Admin
{
public partial
class WebForm1 : System.Web.UI.Page
{
private
class servicetimeofday
{
public int servicetimeofdayid {
get; set; }
public int serviceid {
get; set; }
public int timeofdayid {
get; set; }
}
protected void Page_Load(object sender,
EventArgs e
{
List<servicetimeofday> servicetimesofday =
new
List<servicetimeofday>
{
new servicetimeofday() { servicetimeofdayid = 1, serviceid = 1, timeofdayid = 1 },
new servicetimeofday() { servicetimeofdayid = 2, serviceid = 1, timeofdayid = 2 },
new servicetimeofday() { servicetimeofdayid = 3, serviceid = 2, timeofdayid = 1 },
new servicetimeofday() { servicetimeofdayid = 4, serviceid = 2, timeofdayid = 3 }
};
GridView2.DataSource = servicetimesofday;
GridView2.DataBind();
var itemstocheck = from
servicetimeofday in servicetimesofday
where servicetimeofday.serviceid == 2
select ne
servicetimeofday.timeofdayid
};
GridView3.DataSource = itemstocheck;
GridView3.DataBind();
foreach (var timeofdayid
in itemstocheck)
{
foreach (ListItem i
in CheckBoxList2.Items)
{
if (i.Value == timeofdayid.ToString())
{ i.Selected =
true; }
}
}
}
}
}

View 10 Replies


Similar Messages:

Select Query In LINQ Based On Foreign Table

Mar 2, 2011

I have 2 Tables , OrderDetails and Requests In my LINQ to SQL dbml file. OrderDetailsID is a foreign key in Requests Table. I want to write the query to get the sum of UnitCost from OrderDetails based on OrderId. And If there is a row in Requests Table for each OrderDetailsID, and the Requests.Last.RequestType="Refund" I want to reduce the total refund amount from the main sum otherwise If there is no row based on OrderDetailsID, add to sum. Here is the way I implement that. I am looking to prevent using "For each".

iRefund = (From od1 In dc.OrderDetails _
Where od1.OrderID =1 _
Select od1.UnitCost).Sum
Dim objOrderDetails = (From od1 In dc.OrderDetails _
Where od1.OrderID =1 _
Select od1)
For Each OrderDetail As ORM.Entities.OrderDetail In objOrderDetails
If Not OrderDetail.Requests Is Nothing Then
IF OrderDetail.Requests.Last.RequestType="Refund" Then
iRefund -= OrderDetail.UnitCost
End If
End If
Next

View 1 Replies

Data Controls :: Filter Child CheckBoxList Items Based On Parent CheckBoxList Selection

May 7, 2015

I need to charge my checkboxlist1 from database, eg load fruits and vegetables. When selecting fruits, new filter based on the previous selection in my checkboxlist2. for specific search.

View 1 Replies

Ordering Sub-items Within Ordered Items In A Linq To Entities Query?

Aug 25, 2010

I have a few tables, Listings, ListingImages and a few others related to Listings. ListingImages is related to Listings so that you can have many ListingImages per Listing.

When I query this table I do;

[code].....

Now this is fine. However, I now want to sort the ListingImages independently within each Listing (by an ImageOrder column I have in that table).

How can I do this and pass all my Includes(...). Would it be bad form to sort the ListingImages within the View as this solution seems to work?

View 1 Replies

Data Controls :: How To Programmatically Select (Check) Unselect (Uncheck) Items Of CheckBoxList

May 7, 2015

How to Find Multiple Items Selected in ASP.NET Checkbox List on label with remove option 

my code is 

<asp:CheckBoxList ID="CheckBoxList1" runat="server">
<asp:ListItem Value="0">C#</asp:ListItem>
<asp:ListItem Value="1">SQL Server</asp:ListItem>
<asp:ListItem Value="2">ASP.NET</asp:ListItem>
<asp:ListItem Value="3">WPF</asp:ListItem>
</asp:CheckBoxList>

[CODE]..

View 1 Replies

LINQ-to-SQL Query Returning No Results?

Mar 5, 2011

I have a query using LINQ-to-SQL. It queries an underlying database table Rooms. It uses Where conditions to narrow down the results, namely:

Gender.
Current Occupancy < Max Occupancy
Available Flag is Checked

I know this should return results but it keeps returning an empty set. Any ideas? Code is below

Dim selectedHalls = (From sh In dbHalls.Rooms _
Where sh.gender = Session("gender").ToString _
Where sh.max_occupancy > sh.current_occupancy _
Where sh.is_available = 1 _
Select sh.building_name).Distinct()

UPDATE: I've verified that the issue is with the statement where sh.is_available = 1, which doesn't make sense since this is a bit field.

View 3 Replies

ADO.NET :: How To Alphabetise The Results From A Linq To Sql Query

Jan 26, 2011

I can't seem to change the order of the results coming back from a linq to sql query, I want just to return the distinct values from the field x.manufacturer in alphabetical order, this is what I have and it isn't working:

public IQueryable<string> Dropone()
{
return (from x in CAT.CatalogueDatas
where x.Parent == null
orderby x.Manufacturer
select x.Manufacturer).Distinct();
}

Currently I get the distinct values in non-alphabetical order, in fact I'm not sure what order they're coming out in, don't think it's the order in which they appear though.

View 5 Replies

How To Assign A Value To Label Based On Results From SQL Query

Apr 5, 2016

I have an entry page that contains a datalist. I also have an ascx user control page that when it runs on page load, renders an html table template which contains category information from an SQL self referencing table. When the SQL query run on page load, it bind the results to a datalist called dlCategory, and repeats for all rows that have no value in a field in this SQL table called ParentCategoryCode. The SQL table is called ServiceRequestCategories and basically consists of CategoryCode, CategoryTitle, and CategoryDescription, and may or may not have a ParentCategoryCode associated with it.

Records without a ParentCategoryCode are top level categories, and anything that has a ParentCategoryCode are second or third level categories. The way I have the data set up, it ends up being 4 rows that are returned and rendered as 4 html tables. Each one of these is tied to the user control, and each user control runs another datalist, and shows all CategoryTitle values for each Category that has a ParentCategoryCode (second level categories). This works when you click on a LinkButton for any CategoryTitle. This all works fine.

My question is, how can I use an SQL select query to plug the value of the CategoryTitle into a label called lblCategoryBreadCrumb on my main entry page? Here is my code, but it does not seem to work.

Protected Sub ShowBreadcrumbLabel()
Dim strSQL As String
Dim dsData As DataSet
Dim dtData As DataTable

[Code] .....

View 7 Replies

Sql - Dynamically Generating Buttons Based On Query Results

Dec 20, 2010

I am trying to add some filters to a gridview that I am working on, and I'm wondering if it is possible to generate links or buttons above the gridview based on the years returned in the dataset. For example, if my dataset contains dates from 2001, 2009, and 2031 in my date column, I would like to be able to take that data from my SQL query (getting a distinct list of years is not an issue), and generate the buttons. From there, I would filter the data in the gridview based on the user clicking the buttons.

Is dynamic generation of buttons possible in ASP.NET? I do have some other ideas of how to accomplish the same functionality, but I would prefer to do it this way.

View 1 Replies

DataSource Controls :: Random Results From A LINQ To SQL Query?

Jan 23, 2010

I have this LINQ query:

var agnts = (from a in db.agents select new { a.userid, a.name }).Take(10);

How can I get randomly get 10 records from my agents table?

I have tried:

agnts = agnts.OrderBy(n => Guid.NewGuid());

but this doesn't seem to do anything.

View 5 Replies

VS 2010 - Can't Get Linq Query To Return Expected Results

Feb 13, 2014

I have a array list and am using like a database trying to search for ChildID and ParentID based on certain criteria.

My example below has the following keywords to search for:

Yellow, Mustard, Honey, Orange, Flame, Talisman

I also have a category volume value which I grab the first 2 characters to determine another filter.

My code isn't returning all matches with using 'Contains'. Right now it finds the 'Orange, Flame, Talisman'/AV record and returns 50, 28. My keywords also has 'Yellow, Mustard, Honey'/AV which should return 55 and 28 as well.

HTML Code:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="temp2.aspx.vb" Inherits="temp2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

[Code] ....

View 4 Replies

SQL Server :: Query To Return Results Based On Latitude / Longitude Within Certain Radius

Sep 7, 2010

I cant seem to find a good example of how to build the query logic. We are allowing users to search based on lat/long and need to add radius as another parameter. So you enter 29.30125 as the latitude and -95.04590 as the longitude and pick say 15miles as the radius, i need to return all records that fall within that radius.. can someone suggest a good site to review this type of query?

View 1 Replies

ADO.NET :: Difference Between Select And Select New In Linq Query

Aug 17, 2010

What is difference between select { } and select new {} In Linq Query

View 3 Replies

Linq Query - How To Select Inner Query Into List

Oct 17, 2010

I am writing a linq query to select a blogpost,

[code]....

The blogpost i am testing got 3 tags attached to it. The table structure is:

(table)BlogPost -> (table)BlogPostTags <- (table)Tags

So the BlogPostTags table only contains 2 fields, BlogPostID and TagID.

When i run the query above i get 3 results back. Same blogpost 3 times but with 1 tag in each. It should return 1 post with 3 tags. The problem lies in the Tags query above.

View 1 Replies

C# - Linq: Select First Items From The Child List?

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

Data Controls :: Filter GridView Data Based On CheckBoxList Checked Items

Aug 31, 2012

I want bind  and filter gridview data with  values selected in checbox list ..

i am bind checkboxlist on pageload ....but able to filter the result the of gridview with value of checkbox list ..

when i check box  nothing happen

This my code

 <div>
<asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="True" DataValueField="cartid" DataTextField="sub"
onselectedindexchanged="CheckBoxList1_SelectedIndexChanged" >
</asp:CheckBoxList>

[Code] ....

View 1 Replies

LINQ Query Based On User Preferences?

May 12, 2010

I have a LINQ Query that includes an order by that is based on a user preference. The user can decide if they would like the results ordered asc or desc.

[code]....

View 2 Replies

Web Forms :: How To Append Items With Existing Items In Checkboxlist

Mar 5, 2010

I have 4 Checkboxlists, if i check 1st item of checkboxlist1 -- > populate items in checkboxlist2 if i check 2nd item in checkboxlist1 -- >populate items in checkboxlist2 with last selection as well as 1st checkboxlist items. So I need to Append items in Checkboxlist with existing items and also with previously selected Checkox. Is it any way except DataTable ?

View 2 Replies

C# - Delaying Linq To SQL Select Query Execution

Jun 14, 2010

I'm building an ASP.NET MVC site that uses LINQ to SQL. In my search method that has some required and some optional parameters, I want to build a LINQ query while testing for the existence of those optional parameters.

Here's what I'm currently thinking:
using(var db = new DBDataContext())
{
IQueryable<Listing> query = null;
//Handle required parameter
query = db.Listings.Where(l => l.Lat >= form.bounds.extent1.latitude && l.Lat <= form.bounds.extent2.latitude);
//Handle optional parameter
if (numStars != null)
query = query.Where(l => l.Stars == (int)numStars);
//Other parameters...
//Execute query (does this happen here?)
var result = query.ToList();
//Process query...

Will this implementation "bundle" the where clauses and then execute the bundled query? If not, how should I implement this feature?

View 1 Replies

ADO.NET :: LINQ If Statement Inside Select New Query?

Aug 18, 2010

My application includes BUILDING table with columns BUILDING_ID, NAME, TOWN_ID, I run the LINQ query listed below and need to append two letters to buildings.NAME based on TOWN_ID. I assume that I need to place an "if" or "select" statement inside the query but I can not figure out how to do that,

[Code]....

View 4 Replies

SQL Server :: Select Query Based On Two Fileds With Different Column

Dec 21, 2010

This is my Table structure:-Table1

Field1 Field2 Age

Dean Chen 20

Janel Wast 25

ann Miller 20


I used this select statement

select Field1+' - '+Filed2 from Table1

and i binded this in dropdownlist

now on selecting dropdownlist i need to show age in label. so how would be my select statement... to show age base on Filed1 and Filed2

View 6 Replies

ADO.NET :: Select Query For Linq On Default.aspx.cs Page?

Oct 9, 2010

how do i create linq query and asign that query to as data source to datalist on default.aspx.cs page

View 3 Replies

ADO.NET :: Linq Search - Dynamic Query Based On User Input?

Jan 12, 2011

I have two text boxes for the user to enter UserName & First Name, both these fields are optional and not mandatory to fill.

once the user presses the Search button, i execute the following query to fetch matching records.

[Code]....

The problem is, in cases where User leaves both the textbox or one of the textbox empty/blank, in that case that particular field should be removed from where clause.

More like if something is entered then search for that particular record otherwise search for all the records.

View 2 Replies

ADO.NET :: LINQ Query To Select Objects Containing Collection Of Keyword In A Property?

Dec 16, 2010

I'm new to linq. here is the scenario i need to write query for.I have a "Candidate" table with a varchar property "Skill"I have the table OR-mapped with LINQ to SQL on dbml file. Now I want to write linq query that:Selects all Candidates that have skill containing any of the keywords from ("asp.net","php","java")

View 1 Replies

Forms Data Controls :: Sql To Linq Query / Looking To Translate An SQL Query Into Linq?

May 28, 2010

I'm looking to translate an SQL query into linq

INNER JOIN Usrs ON
SAQ.UserId =
Usrs.UserId AND Scan.UserId =
Users.UserId

I'm not sure how to include the "AND" in the LINQ statement.

View 3 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved