Web Forms :: Updating Data Automatically Using Web Service?
Apr 15, 2010
I am creating a web app with sql server 05 and visual studio express 08. There is always live data inserted into my sql tables throughout the day infrequently.
I want to create a web page that will show the data in graphs etc. I can currently show the data present in the database on the web page. HOWEVER what i do not know is how to update the page (graphs) with the NEW DATA that has been inserted into the tables.
I guess I will have to use ajax to change the data shown on the web page automatically. I will also need somesort of triggers to tell when new data has arrived.
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Aug 3, 2010
I have an access database where when the record is updated I would like to automatically check a box and update the date to the current date in an Access 2002-2003 database. I've tried this for several days without any resolution and can't find anything that works on the net. ...I'm new at this.
I'm using VWD 2005 Express and Expressions Web 3.
Here is a short version of the code.
[Code]....
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Apr 1, 2011
Data can be fetched into an application through web service can it be possible to update data in web service from our application ..
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Dec 28, 2010
how do I update a field from code like inserting a date. i have something like below. i want to insert the date when the record is updated or edited, but it does not work what is the correct way to do this in mvc
[HttpPost]
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Mar 10, 2011
Basically we have a web service that the client uses to get all sorts of information, works well. Now I would like the client to call our web service, and for us to update our database based on the information getting passed (just a bool, and time).This will be used to determine what stage the client is at (they do QA). Is this possible?
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Feb 4, 2011
I have an Asp.net page which requires certain sections to be partially updated automatically at an interval of 5 seconds. I was planning to use the good old Timer control with the AJAX Update Panel for this purpose, but after a bit of reading on this control i found out that it may have some problems especially if,
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I just wanted to get your opinion as to whether if i should go ahead with the timer and update panel approach, write some custom javascript that does the partial page update or some other strategy altogether.
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Jul 2, 2010
I found some code on the web and it threw me off. Look at the code below. You will notice only when the Hits == 1, does the cache get added. After that, the cache object isn't updated. It begs the question, does the object when updated, update the cache as well automatically? The answer here would make me remove some code in some of my classes.
public static bool IsValid( ActionTypeEnum actionType )
{
HttpContext context = HttpContext.Current;
if( context.Request.Browser.Crawler ) return false;
string key = actionType.ToString() + context.Request.UserHostAddress;
var hit = (HitInfo)(context.Cache[key] ?? new HitInfo());
if( hit.Hits > (int)actionType ) return false;
else hit.Hits ++;
if( hit.Hits == 1 )
context.Cache.Add(key, hit, null, DateTime.Now.AddMinutes(DURATION),
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Normal, null);
return true;
}
I would only guess that I would need to add the lines after the if statement:
if( hit.Hits == 1 )
context.Cache.Add(key, hit, null, DateTime.Now.AddMinutes(10),
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Normal, null);
else if (hit.Hits > 1)
{context.Cache.Remove(key);
context.Cache.Add(key, hit, null, DateTime.Now.AddMinutes(10),
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Normal, null);
}
Found the code at the bottom of the page here: http://www.codeproject.com/KB/aspnet/10ASPNetPerformance.aspx?msg=2809164
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Mar 1, 2011
How can i automatically update a user control after a specific time without updating the whole aspx page.
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Apr 8, 2010
I'm trying to insert a new EF object containing a reference to a related table via foreign key, and cannot get the reference stored in the new object. I have two tables in a SQL Server 2008 Database:
Component Templates
PartGroups
with a Foreign Key linking them thus: ComponentTemplates:ID [0..1<->*] PartGroups:ComponentTemplateID
I have imported these tables into a .NET web application project .edmx file (using a new ADO.NET Entity Data Model), and then created a Data Service which I then reference in a Silverlight 3.0 project. The objects are available as expected in the data context called by my Silverlight app and load correctly. Now, when I try to save a reference of ComponentTemplate into a newly created PartGroup, the PartGroup object is created in the database, but the value of ComponentTemplateID in the newly created table record is NULL.
[Code]....
(Note that _ctCtrl.ComponentTemplate is a confirmed non-NULL object reference to the parent object on which PartGroup is a child)
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Oct 8, 2010
I am trying to update client side controls asynchronously with information from a service.
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I am trying to use an update panel, and call updatepanel.update() (server side) once I recieve the information from the service. basically: how do I partially update control data from the server side so that client side can see it.
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Mar 15, 2011
I am ASP.NET developer.
i have run one program in host server at a particular interval (lets say in each & every 1 hour) by using web service. but on my server web service stops automatically after 2 or 3 hour.
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Feb 21, 2010
I have a webservice - called MyCompany.WebService1
I reference this using a web reference in my ASP.net web application.
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The deal object currently looks (for example) like this:
[code]....
This class is in a different assembly: MyCompany.Model
The web service references this assembly.
In my web app, I can call the GetDeal method. This returns Service1.Deal (service1 is just the name of the web reference)
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However, I can't see these new properties in my web application. I've updated the web service in the web application. I rebuilt the web service several times, tried removing the MyCompany.Model reference and re-addding it etc...
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Jan 8, 2011
i have a web application with sql server 2008 i wanna know if its possible to load the data automatically after its been inserted to DB..i have a alerts table which store message and user name to which the alert is to be send i wanna display the alert msg to user after it has been inserted...
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Jul 28, 2010
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Feb 6, 2011
How add programatily or dynamic column in grid view
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Sep 9, 2010
I have a gridview which contains asp.net textboxes. The user uses a barcode scanner which scans barcodes into the textboxes.
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Sep 6, 2010
I have a web page into which a user control is loaded. This user control contains a ListView. In the Page_Load event handler of the user control I have this code:
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listView1.DataBind();
It should be noted that the TaskList data table is actually instantiated in the web page. The user control then obtains a reference to it.
Everything described to this point works fine. Where I'm running into trouble is when I add a new row to TaskList. I had *thought* that the ListView control was dynamically connected to the data table, such that when I altered the contents of the data table in any way, that the changes would be automatically reflected in the ListView.
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Feb 11, 2011
I want to automatically select the first row of Gridview after an autopostback. Here is the scenario. I have a dropdownlist that populates Gridview. On Gridview I have the option to select a record to view more information. However, after the user selects an option from the dropdownlist I want the first record in Gridview to be selected and shown in Detailsview.
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Dec 17, 2010
I have a need for a GridView (that is initially hidden) to skip the binding to the associated SqlDataSource until the user requests a certain condition. At that point, I want to modify the SelectCommand and bind the Gridview.
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Feb 13, 2010
I have an asp.net page with a gridview control on it but I want to allow the user to also be able to update the selected row from a series of textboxes. I simply need the code for a button click event to do this.
button is called button1
textbox is called textbox1
gridview control is named gridview1
record to be modified is in 3rd column called PlayerName
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May 31, 2010
I'm just wondering if anyone has come across a good, easy method for updating a SQL Server 2000 DB table using the edit feature in GridView. The catch here is that I need it to encrypt, send to database, then decrypt when the page calls it to be displayed. I have successfully implemented an insert method using FormView with encryption. For some reason, I just can't seem to figure out the edit/update.
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Feb 4, 2010
Duplicate Data in Gridview and Updating textbox in DetailsView
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Sep 7, 2010
I am making a message module in asp.net with database of sql. i have made a gridview and enabled selecting. and a form view is synchorised with grid view on selecting. i am writing update sql but could not get a way to take data on Gridview or Formview to compare the record in sql database.
this is my page view
[Code]....
This my vb code
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Mar 5, 2010
I have a gridview based on a sqldatasource that has some colums from which two colums showing the data of two fields: field1 and field2. field1 is an ID which should not be updated and therefore it is readonly=true. The sql-query from the sqldatasource is:
SelectCommand="SELECT field1, field2 from anyView"
What I want is, that when a row is updated, then the value from field1 should be copied to field2 The update-query is:
UpdateCommand="UPDATE myTable SET field2=@field2 WHERE field1=@field1"
My idea was, that the @field2 paramter gets the value from the query string out of field1:
<UpdateParameters>
<asp:QueryStringParameter Name="field2" QueryStringField="field1" Type="Int32" />
</UpdateParameters>
But this does not work. Is there an easy way to copy the data from field1 to field2 when updating the row? In addition, is this possible, even if field2 ist not shown in the gridview (i.e. field2 is selected in the query but is not a field in the gridview but should be updated with value of field1).
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Jun 2, 2010
I have a web page with a gridview & formview (master/detail relationship) combo. On page load the gridview shows all records from a SQL table. On my page I have a button that when clicked shows the formview in Insert mode to allow users to add a new record to the data. I have also added a column to my gridview that has a link. When a user clicks this link it hides the gridview and shows the formview in edit mode with the detail from the record selected from the gridview.
In my formview I am using a listbox control to allow users to select multiple values. The choices in the listbox are populated by a SQL data table. I have successfully written code to post the selected listbox values to my SQL data field during Insert. When the user selects a record to edit I have code in the databound event to select values in the listbox from the choices based on the value in the sql data field. This works as well. My problem is that I cannot figure out the correct code to update my SqL data when a user is editing the record and makes changes to the selected listbox value. I have included my design code for my listbox in my formview edittemplate and also my behind code that I have attempted.
<td
style="width: 454px">
<asp:ListBox
ID="lbox_ConstructionType"
runat="server"
DataSourceID="SqlDataConstructionTypes"
DataTextField="Construction_Type"
DataValueField="Construction_Type"
SelectionMode="Multiple"
Width="144px"></asp:ListBox>
<asp:TextBox
ID="tbox_Ctype"
runat="server"
Text='<%# Bind("ConstructionTypeID") %>'></asp:TextBox></td>
[Code]....
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