Optimize LINQ Query For Use With JQuery Auto-complete?
May 20, 2010
I'm working on building an HTTPHandler that will serve up plain text for use with jQuery Autocomplete. I have it working now except for when I insert the first bit of text it does not take me to the right portion of the alphabet.[code]...
My question is, how would I implement this concept into my HTTPHandler without doing a fresh SQLQuery on every character change? IE: I do the SQL Query on the QueryString("ID"), and then on every subsequent load of the same ID, we just filter down the "Part".[url]...
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Dec 5, 2011
i I want to use AutoComplete with VB.Net I am sick to find proper document and example.
(Autocomplete location based on stateid )
Javascript
$(function() {
$("#Location").autocomplete({
[Code].....
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May 10, 2011
What I want to do is retrieve all emails from MS SQL Customer table Email column and populate them in using JQuery autocomplete feature. The current system is using VB.NET 2.0. What I have done is get all emails and put them in DataTable and loop through and put them in the string delimited by ",". Put that string into hidden box. JQuery retrieve value from that hidden box and build an array using "array = emails.split(",");". Here is the code. It works pretty good on development server since we have only 2,000+ records but it is loading forever when I put that on the live server where there are 80,000+ records.
[Code]...
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Jul 26, 2010
My LINQ query contains the following Group By statement:
Group p By Key = New With { _
.Latitude = p.Address.GeoLocations.FirstOrDefault(Function(g) New String() {"ADDRESS", "POINT"}.Contains(g.Granularity)).Latitude, _
.Longitude = p.Address.GeoLocations.FirstOrDefault(Function(g) New String() {"ADDRESS", "POINT"}.Contains(g.Granularity)).Longitude}
The query works, but here is the SQL that the clause above produces
SELECT [t6].[Latitude]
FROM (
SELECT TOP (1) [t5].[Latitude]
[Code]....
but this produced an error: "A group by expression can only contain non-constant scalars that are comparable by the server."
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Jul 6, 2010
Is it possible to populate an AutoComplete text box property in code from an Access query.
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Apr 1, 2012
I need a list from OldGuids that are not in the NewGuids, so I used the Contains method, the problem is that it is already running more then half hour, is there a faster way? or how much longer would it take about? [code]
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Feb 20, 2008
Code:
Tables:
- Company
- Department
- Employee
- CertificationA
- CertificationB
I am trying to return a recordset that gives some summary information about each company. The fields in my returned recordset should look like the following.
Company.Name, NumberOfDepartments, NumberOfEmployees, NumberOfCertificationA, NumberOfCertificationACompleted, NumberOfCertificationB, NumberOfCertificationBCompleted
There are actually about 10 different Certification tables but, with Certification A and B you should get the hang of it. When an employee starts a certifaction, a record is added to the that certification table.Below is a query I wrote that works (gets me the data I need), but I am unsure if it is the most efficient way. There will be quite a lot of data so performance is an issue.
Code:
Dim sqlNumberOfDepartments As String
sqlNumberOfDepartments = _
"(SELECT COUNT(*) " & _
"FROM DEPARTMENT " & _
[code].....
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May 11, 2012
this is my class:
Public Class Employeeclass
Public Property Fname As String
Public Property Lname As String
Public Property Bdate As Date
End Class
[Code]...
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Sep 22, 2009
I know that LINQ queries are deferred and only executed when the query is enumerated, but I'm having trouble figuring out exactly when that happens.Certainly in a For Each loop, the query would be enumerated.What's the rule of thumb to follow? I don't want to accidentally enumerate over my query twice if it's a huge result.
For example, does System.Linq.Enumerable.First enumerate over the whole query? I ask for performance reasons. I want to pass a LINQ result set to an ASP.NET MVC view, and I also want to pass the First element separately. Enumerating over the results twice would be painful.It would be great to turn on some kind of flag that alerts me each time a LINQ query is enumerated. That way I could catch scenarios when I accidentally enumerate twice.
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Jan 10, 2012
Master page HTML :
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="PMS.master.vb" Inherits="PMS.PMS" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[code]....
Note : I am using the AJAX Version 4.1.51116.0 and I have seen this and that and tried to work it out ... but nothing is going on
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Nov 11, 2010
So I was reading a bit on AutoComplete of textboxes in VB.NET, but I can't really understand where these are stored? Is it a fully built in feature, or do I have to write some code for it to work? I've found the AutoCompleteMode and AutoCompleteSource properties of textboxes.But I want to append whatever I've written in the textbox to the autocomplete source. Do I connect the source to My.Settings or something
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Feb 4, 2010
Auto Complete of Text Box
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Jul 9, 2009
I have datagridview containing 4 columns with 2 combobox. With the initial loading of datagridview I could select an item with the combobox, but when I tried to select an item with other combobox I've got an error showing "System.ArgumentException:
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Feb 10, 2012
I have a problem with my coding to autocomplete textbox. nothings happen
Dim col As New AutoCompleteStringCollection
NewDataSet("select * from tbluser")
If ds.Tables("0").Rows.Count > 0 Then
For i = 0 To ds.Tables("0").Rows.Count - 1
[code]....
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Apr 27, 2012
I have a datagrid and I have imported it to my project under vb.net language, and the database is MS access any way in this datagrid one table call "Employees" ID - Name - Nationality - Job title and what I want is when I write the ID number of the Employee, all the other details automatically comes upon to his ID number.
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May 27, 2011
Im currently diving into jquery autocomplete for the first time. To start off with, I had a .net handler calling out to a mssql db and pulling last names. That worked great.However when I try to add additional values it simply doesnt work. The code being used in the handler is as follows.
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
Dim prefixText As String = context.Request.QueryString("term")
Dim conn As SqlConnection = New SqlConnection
[code]....
I didnt include the IsReusable when posting, but that is there. why it doesnt like multiple values but will display one lone value?
** Edit ** I just looked in Firebug and it is getting a response but just not displaying it. My implementation of this is pretty simple so far, nothing to fancy.
$(function() {
$('#lastName').autocomplete
({
[code]....
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Mar 23, 2012
I'm trying to use an auto-complete, and it works fine if I call a function without a parameter in the web service:
<WebMethod()> _
<Script.Services.ScriptMethod()> _
Public Function GetCompanyNames2() As String()
[code].....
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Feb 19, 2010
auto complete dropdown/textbox (asp .net/vb)
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May 30, 2012
On a textbox you can have auto complete but you can only have one word. Is there a way to have every word in the text box ask for auto complete?
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Apr 22, 2012
how to use the ajax tool kit autocomplete extender to obtain records from a database, I have looked at the following:[code]
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Aug 10, 2009
I have a combo box with autocomplete binded to a database. I would like it to return, or at least assign to variables specific columns in the same row to a label when I press the button. I read something about Tag and Text in the label section but couldnt quite figure it out.
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Jun 21, 2010
I have a ComboBox in my WinForm which has data from SQL server (used LINQ to bring up the data). I'd like to have an option just like AutoComplete in VB.NET but not only by the first letter but for a search LIKE.
[Code]....
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Feb 23, 2012
What is the best approximation algorithm to implement full-text fuzzy search. For example we have a dropdownlist with the following data (from SQL datasource):
Company Policy
Product Catelog
Our Partners
Now I want to replace it with an autocomplete textbox, such that when the letter "p" is typed the list shows all three results. It should start matching the first letter of the first word or second word and so on. Also, it should highlight or make the matched letters bold in the suggestions dropdown.Is there a readymade control for ASP.NET (with JS or jQuery) to deliver all the aforementioned functionality? Otherwise if I have to implement it, is there a tutorial/blog which point me in the right direction?
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Jan 3, 2012
I'm having troubles with my datagridview. Id like to use a combobox that you could type into and (as you are typing) would update the drop down list with the ability to use wildcardsThe list is populated with a table in my database. I know how to do this using just a combobox on a form, but I'm still learning everything with datagridviews.Is there a way to do this with a combobox in datagridview? If not, is there a way to do it any other way (i.e. using a textbox and having something pop up like the autocomplete windows)? I really would like to have the ability to use wildcards with this
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Oct 9, 2010
I would like a fulltext autocomplete functionality for a Combobox. Built-in autocomplete only filters those items, that match the written text from the first letter. Is there any 3rd party components that has fulltext autocomplete? Or do I need to make functions myself?
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Jan 25, 2011
i have a combobox with autocomplete to listitems it works very fine if i wrote the first letter it suggests a list of items that starts with this letter. i need to make it work if i write any part of the word not only the first letter?
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Oct 25, 2010
I would like to know if it's possible to code Auto-completion for a RichTextBox control. I would also like to know how to load a .lua file into the RichTextBox
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Mar 14, 2010
I'm using the AutoComplete function of a TextBox to suggest values from a database to the user. This works almost as expected. However, I do have two questions that I can't seem to find the answer to...
1) Is it possible to change the function that selects the items to display in the AutoComplete dropdown such that it will also select strings that match anywhere else than at the beginning? For example, when I type 'apple' I want that to match 'Apple' but also 'I have an apple!'.
2) Is it possible to change that same function to sort the options? (In my case based on how often they exist in the database.)
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Jun 12, 2011
i want to make a textbox suggest all possible inputs based on a certain column in my database. for example, i have a country column in the database and i want my textbox to display all countries from my database column that starts with P when i type it and so on
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May 13, 2012
I implemented auto complete in vb.net textbox , but there is an issue that when user types something in text box the auto complete suggestion list blinks and disappears like if the focus changed
here is the code:
Dim Bl As New ItemBL
Dim suggestions = DAL.DisplayLikeNameList(Trim(MyTextBox.Text))
Dim MySource As New AutoCompleteStringCollection()
[code]....
I believe the problem in Mdi form because it has timer code executed after the above code :
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
LblDateAndTime.Text = Now
End Sub
Note: the auto complete code is executed in a child form not in the Mdi Form , what do you suggest to keep suggestions list "sticky" as the user writing in the text box ?
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