Autocomplete With .NET And Databases
Jan 10, 2010
i've learnt that you can create an auto-complete application using XML file, and XMLhttpRequest (JS, JS DOM).I was wondering if you can achieve the same thing using an .net application and some database info.Thinking about it, you might have to use AJAX to perform real-time auto-complete... But still, i dont know if it's possible that way.Aside of that, assuming that there is a .net solution, how professional site builders usually do that?
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Similar Messages:
Sep 29, 2010
I'm creating just simple autocomplete sample.
taking one textbox adding autocomplete extender as
<asp:ScriptManager ID="ScriptManager2" runat="server">
<Services>
<asp:ServiceReference Path="WebService.asmx" />
</Services>
</asp:ScriptManager>
<asp:TextBox ID="TextBox1" runat="server" EnableTheming="True" ></asp:TextBox>
<cc1:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server" MinimumPrefixLength="1" ServiceMethod="GetCountryInfo" ServicePath="WebService.asmx" TargetControlID="TextBox1">
</cc1:AutoCompleteExtender>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
Also creating web services as "WebService.asmx" & code inside this file is that
<%@ WebService Language="C#" CodeBehind="~/App_Code/WebService.cs" %>
------
then in Webservice.cs file i write code as
public class WebService : System.Web.Services.WebService {
MySql.Data.MySqlClient.MySqlCommand cmd = new MySqlCommand();
MySql.Data.MySqlClient.MySqlConnection con = new MySqlConnection();
//MySqlDataAdapter da = new MySqlDataAdapter();
MySqlDataReader dr;
public WebService () {
//Uncomment the following line if using designed components
//InitializeComponent();
}
[WebMethod]
public string[] GetCountryInfo(string prefixText)
{
int count = 10;
string sql = "Select * from tbl_patientmaster Where P_NAME like '" + @prefixText + "%'";
con.ConnectionString = System.Configuration.ConfigurationManager.AppSettings["HMSDBConnectionString"].ToString();
con.Open();
MySql.Data.MySqlClient.MySqlDataAdapter da = new MySql.Data.MySqlClient.MySqlDataAdapter(sql, con);
da.SelectCommand.Parameters.Add("@prefixText", MySql.Data.MySqlClient.MySqlDbType.VarChar, 50).Value = prefixText + "%";
System.Data.DataTable dt = new System.Data.DataTable();
da.Fill(dt);
string[] items = new string[dt.Rows.Count];
int i = 0;
foreach (System.Data.DataRow dr in dt.Rows)
{
items.SetValue(dr["P_NAME"].ToString(), i);
i++;
}
return items;
}
this code is not working
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Feb 17, 2011
I'm using jQuery AutoComplete Plugin in ASP.Net as outlined in the article below, so that as a user types in a .Net textbox they get a list of options to choose them. This works fine, but what I need to do now is call a server side function when the user has finished typing or has choosen a value, rather than the user having to submit the value by pressing a button.
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Aug 10, 2010
I am using Ajaxtoolkit 3.5.I am using an autocomplete textbox extender.My problem is I have populated Country in the autocomplete textbox.I have to populate city in another dr
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Jul 6, 2010
i want to develop a data access layer ,it can support multiple database like oracle ,Mssqlserver and Mysql using enterprise library and C#.net 3.5 based on database connection
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Dec 28, 2010
I have a web site which uses one SQL database but the hosting company is very slow sometimes and I got database timeout, login and similar errors. Can I implement my code to use two databases simultaneously? I have stored procedures and the data is updated periodically.
EDIT:
Simply: When dbDefault is down and inaccessible I need to use dbSecondary so the web app keeps running. Ant these two databases must be always same.
EDIT:
Some errors:
A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.)A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.Cannot open database "db" requested by the login. The login failed. Login failed for user 'root'.
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Nov 18, 2010
I am looking at the book MVC in Action for how to do autocomplete on a textbox.The one variation is that I have to return a JSON object.
So my partial view looks like;
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<SHP.WebUI.Models.HolidayRequestViewModel>" %>
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Jan 27, 2010
I'm using C# and having problems with nested usercontrol within a usercontrol having AutoComplete textbox. I successfully implemented AutoComplete textbox in a usercontrol but doesnt work with nested one. The webservice does get called and i get the dropdown, but on selecting the text from the dropdown doesnt set the value in the hidden field. Tried to debug using Firebug, but it doesnt break at this function
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Oct 27, 2010
JQUERY autocomplete and asp.NET
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Mar 28, 2011
I'm trying to create an autocomplete textfield using a database as source.
The user needs to enter a few letters and his/her name (record by the combination of 2 columns 'firstname' and 'lastname') pops up as a suggestion. The problem is that I would like to get the id of that record, since I need to get a hold of the rest of the user details.
I currently have this code:
[Code]....
In the ASPX page, I've tried this:
[Code]....
[Code]....
So generally, I think that my code is working as it should be. However, there seems to be a problem with returning both of the values so that the javascript is able to seperate them.
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Jan 25, 2011
i sample code for how to use wcf with ajax autocomplete
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Oct 21, 2010
How do i set my asp text box to have an autocomplete function?
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Jan 14, 2010
I need to implement an auto complete feature and found posting on the Web that text box will do the job using ajax extender. Do I need to create a new website ASP.NET Ajax-Enabled or can I use my current ASP application? Or is there a better way to approach this using some other methods? [URL]
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Mar 29, 2011
am using Autocomplete Jquery from the following URL:[URL]I am making my project in MVC 3.0 (Razor)
In this I am displaying list of names from the database and its running fine.Now I want to show this whole list in the div according to my project requirement.
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Jan 17, 2011
I have a dropdown in my CreateDocumentTemplate ciew <%=Html.DropDownList("Part", (SelectList)ViewData["Part"])%> which is populated from database. I want to this dropdown to be autocomplete. How can I acoomplish this?
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Nov 1, 2010
I've looked at this link and I've tried all the suggestions there, but my Asp.Net AJAX Autocomplete still isn't working.
I have a test project with only a label, text box an the auto-completer:
<asp:ToolkitScriptManager ID="ScriptManager" runat="server">
</asp:ToolkitScriptManager>
<asp:Label ID="FieldLabel" Text="Label:" runat="server"></asp:Label>
[code]....
In theory, my textbox should have an autocomplete dropdown containing 3 instances of the word "test". In practice, I can type anything I want into the textbox and nothing happens.
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Jul 13, 2010
as you can see on this page: http://immobilzero.com/Prov2.aspx i have an autocomplete associated to textbox
the problem is not animation because i tried to delete but is that in the first time it appears, it goes too highter!!!
this is the code i use;
[Code]....
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Sep 9, 2010
I am using ASP.NET AJAX Autocomplete to load the data. I am fetching data from a Dataset, which is store in Session. The table length is approx 1000 rows.I use DataView to and Table.Select ("Data Like '"+ inputvalue +"'") to filter data on each keystroke.I am wondering, what's the best and fastest way to store and fetch data for Autocomplete?
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Jan 14, 2011
how to use autocomplete extender in asp.net
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Feb 1, 2010
wanted to know exactly where on the server are the textbox autocomplete entries stored . Also where does Visual Studio store them
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Feb 17, 2011
in my webapplication, I'm using asp.net dropdownlists, that are filled with data (text & id) through ObjectDatasources.
I'd like to use the jquery autocomplete on the dropdownlists, but I fail to find any good example for it, unless examples that are using http handlers or webservices, which I'd like to avoid.
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Apr 7, 2010
I've been racking my brains out trying to get this to work. I've followed multiple tutorials to the letter and I have had no luck.
Here is my Default.aspx page:
[Code]....
Here is my WebService.asmx.cs file:
[Code]....
I don't know what else there is to do. I have a zip of my solution here: [URL]
Edit: I forgot to add that I am able to run the WebService by itself. It returns the values from the function. The function is never invoked from the aspx though.
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Apr 21, 2010
I want to implement the AutoComplete extender in my application. What I really want to capture is the EmployeeID. Obviously I want to display employee's name. Is there a way to do this?
I can return the employee name and do another look up but that's two hits on the database.
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Jun 7, 2010
I am using AJAX Control toolkit V-1.0.
I am coming across one problem with auto complete extender in my application, problem seems to simple but i can't find any satisfactory solution. In one form, i have set auto complete extender on one text box, i have set one web service, in which one function is there, which fetches existing records from db, on first load, if i write releavent words with that of db, i can't see the extender, but if once either i minimize the page or give tab despite AutoPostBack property of text box is false, then after writing something in text box shows me the extender.
Here are the properties of both text box and extender
<asp:TextBox
ID="txtCompanyName"
runat="server"
CssClass="txt"
MaxLength="100"
TabIndex="4"
Width="443px"
></asp:TextBox>.........
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Feb 18, 2010
I added an autocomplete extension to a textbox, set up the web service and everything else I needed to get back autocomplete data, traced through debugger to make sure I was getting back the results I needed - - but still no autocomplete results. I thought maybe it was because my textbox was within a formview, within a wizard control, within a master page that was preventing me from seeing the results, so I set up a standalone ajax webpage, put in a textbox, set my service method and service path properties, and let it rip. Still no results.
Finally, after tearing out clumps of hair, I browsed my website using Firefox instead of IE 8. And there it was - - the results I was expecting.
So what is it in IE that is preventing me from seeing the popup results? I disabled the pop-up blocker in IE and that didn't work. I added my website to the allowed website in the pop-up blocker settings and that didn't work either. My guess is it's something under Internet Options => Security => Custom Level but I don't know what (yes, I have Active Scripting enabled).
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