Forms Data Controls :: How To Update A Web Application From The Client
Feb 14, 2011
My web application goes onto several client servers and I wrote a simple VB6 app that when run downloads relevant files and copies them into the directory.If I wanted the web application to perform this update can I assume this is impossible, i.e. FTP the files and copy them accordingly?Also I am now pre-compiling my site each time using the aspnet_compiler and this seems to update every page, do I need to copy each page every time or simply the ones I've changed.
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Similar Messages:
Sep 22, 2010
I want to create a WCF Service to transfer data to our clients application(WPF). The Data I am trying to send is as follows.
ID Code Description unit Rate
1 104200000 LIVE GOAT NOS 25
2 104200000 LIVE GOAT2 NOS 25
3 104200030 LIVE GOAT3 KGS 10
4 104202030 Water LTR 5
and so on till ~ 11000 records.
What I have done so far is. Created a service which return a list of data.
public List<Classes.TariffData> GetTariffData() { var currentTariffData = new List<Classes.TariffData>(); using (var myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString)) { const string query = "select a.ID,a.Code,a.Description,a.unit,a.rate,a.rate3 from tariff.dbo.tariffdata a, tariff.dbo.code_history b where a.id = b.id and b.endofvalidity is null"; using (var myCommand = new SqlCommand(query, myConnection)) { using (var ad = new SqlDataAdapter(myCommand)) { var dt = new DataTable("tariff"); ad.Fill(dt); currentTariffData.AddRange(from DataRow row in dt.Rows select new Classes.TariffData { Id = int.Parse(row["Id"].ToString()), Code = row["Code"].ToString(), Description = row["Description"].ToString(), Unit = row["unit"].ToString(), Rate = row["rate"].ToString(), Rate3 = row["rate3"].ToString() }); return currentTariffData; } } } }
Class is as follows
public class TariffData { public int Id { get; set; } public string Code { get; set; } public string Description { get; set; } public string Unit { get; set; } public string Rate { get; set; } public string Rate3 { get; set; } }
If i Limit the number of data by using const string query = "select top 300 a.ID,a.Code,a.Description. The Service works fine. But if I remove the top 300 part I get an error. What is your advice if I want a service to allow our client applications to update their data by using WCF. (11000 records.) I am using visual Studio 2010. C# .Net 4.0
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Jan 10, 2011
I have a page setup that displays a datagrid connected to a access database file. I setup a timer to compare the last write time of the access db file and current time (with in 4 seconds). Once the times are with in 4 seconds of each other it requests a refresh of the data. The webpage is displayed on 4 thin client PC's with 0 user involvement so the WebPages need to update themselves. Due to the fact I'm limited to Access I'm trying to limit the # of times a day they are accessed by the auto-update.
The problem I'm having is when the timer ticks it POSTs to the web server. I have 3 WebPages setup watching 3 DB's for different location where I work but they all run of an IIS server in my office. So this creates a lot of unneeded traffic and log files. (Currently 5-6megs per day)
I was wondering there is a better way to compare the files on the clients machine and only post back for an update when they are with in 4 seconds of each other.
The site is built with MS visual web dev 2010 express written in Aspx and code lang is VB. I'm using system.io.file.getlastwritetime to get the file information for comparing.
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Oct 30, 2010
What is the best way to update data constantly on the client using asp.net Timer + Update Panel, or I need to use Reverse AJAX for that?
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Nov 23, 2010
I have a ASP.NET application. From that, User register, User will get email after registration. My Req : When user click on link provided in email. Then it should go to my ASP.Net application page . That page should install a wincows application on Client system through web ( I was inspired by Microsoft Windows update from Microsoft site)
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Jul 22, 2010
how to catch update panel's request start (before partial updation request is sent to server) and response receive (before update panel is updated) events.
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Mar 17, 2010
Is is possible to initiate a partial page update whenever a client makes an update (say inserrting a record) and this will update the panel of all clients who are actually viewing the page ie eliminate the use of a timer control to refresh the panel each second because am getting many problems when using timercontrol.
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Sep 7, 2010
I am working on WCF Data service which imported stored procedure, as below.
[WebGet]
public List<GetMTSearchResultTest_Result> GettMTSearchResultTest()
{
MediaMarketResearch_PRODEntities ent = new MediaMarketResearch_PRODEntities();
return ent.GetMTSearchResultTest().ToList();
}
when i consuming this in my client application it says error as "The closed type MMRClient.MMRServiceReference.GetMTSearchResultTest_Result does not have a corresponding element settable property." I am getting this error while bind to the grid view as below.
DataServiceContext context = new DataServiceContext(new [URL])); IEnumerable<GetMTSearchResultTest_Result> empResult = context.Execute<GetMTSearchResultTest_Result>(new Uri [URL];
GridView1.DataSource = empResult;
GridView1.DataBind();
Note: I imported this stored proc as complex type.
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Jan 2, 2010
Is it possible to read data from serial port of client system using asp.net web site. Here is my scenario
I will be having computers connected in LAN and a web application which resides on server. Each client computer will be connected to a external machine using serial port and is ready for reading data, external machine measures equipment details and sends through serial port.Now I need to read the same data using my web page, is it possible?
Like when we do video chatting our web page reads data from web cam and sends the stream to web page. this way how can I read data from client machine to web page.
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Feb 4, 2011
I have a gridview and when i click on the edit button i will get the modalpopup window which is having a popup window i want to update the data in that details view and refresh the data into gridview also.
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Jan 26, 2011
I get all hotels with my datalist. a label shows hotel names and a texbox gets order. I want to update values without clicking Submit.
I placed scriptmanager and update panel. I dont know next step
[Code]....
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May 10, 2010
I searched a lot of threads but still couldn't get my problem fixed. I have to update the "regform" table with two fields: session_ and session2. These two fields are inside the detailview edititem template which bounded to dropdown list drpsession1, drpsession2 separately. I wanted to pass the update parameters to the update sql UPDATE dbo.regform SET session_=@session_, session2=@session2 where id=@id
the @session_ is bounded to a drpsession1 and @session2 is bounded to drpsession2. I used
ControlID="ctl00$ContentPlaceHolder1$DetailsView1$drpsession1" to access the dropdown list within the detailview, but still couldn't do the updates. What's wrong with my code? Do I have to use the code behind to specify the update parameters? and How to do it? TIA.
<
"
asp:DetailsView
ID="DetailsView1"
runat="server"
AutoGenerateRows="False"
DataSourceID="SqlDataSource2"
Height="50px"
Width="544px"
DataKeyNames="id"
ondatabound="DetailsView1_DataBound">
<Fields>
<
asp:TemplateField
HeaderText="Session -Part I"
SortExpression="session_">
<
EditItemTemplate>
<asp:DropDownList
ID="drpsession1"
runat="server"
DataSourceID="SqlDataSource3"
DataTextField="session_time"
DataValueField="session_id"
SelectedValue='<%# Bind("session_") %>'
AppendDataBoundItems="True"
Width="229px">
<asp:ListItem
Text="Please select"
Value="-1"
/>
</asp:DropDownList>
<asp:SqlDataSource
ID="SqlDataSource3"
runat="server"
ConnectionString="<%$ ConnectionStrings:Connstr %>"
SelectCommand="SELECT dbo.sessions.* FROM dbo.sessions"></asp:SqlDataSource>
</EditItemTemplate>
<
asp:TemplateField
HeaderText="Session - Part II"
SortExpression="session2">
<EditItemTemplate>
<asp:DropDownList
ID="drpsession2"
runat="server"
DataSourceID="SqlDataSource4"
DataTextField="session_time"
DataValueField="session_id"
SelectedValue='<%# Bind("session2") %>'
AppendDataBoundItems="True"
Width="234px">
<asp:ListItem
Text="Please select"
Value="-1"
/>
</asp:DropDownList>
<asp:SqlDataSource
ID="SqlDataSource4"
runat="server"
ConnectionString="<%$ ConnectionStrings:Connstr %>"
SelectCommand="SELECT dbo.sessions2.* FROM dbo.sessions2">
</asp:SqlDataSource>
</EditItemTemplate>
</Fields>
</asp:DetailsView>
<
asp:SqlDataSource
ID="SqlDataSource2"
runat="server"
ConnectionString="<%$ ConnectionStrings:Connstr %>"
UpdateCommand
where regform.id=@id">
="UPDATE dbo.regform SET session_=@session_, session2=@session2 where id=@id">
<UpdateParameters>
<asp:ControlParameter
ControlID="ctl00$ContentPlaceHolder1$DetailsView1$drpsession1"
Name="session_"
PropertyName="SelectedValue"
Type="String"
/>
<asp:ControlParameter
ControlID="ctl00$ContentPlaceHolder1$DetailsView1$drpsession2"
Name="session2"
PropertyName="SelectedValue"
Type="String"
/>
<asp:ControlParameter
ControlID="DetailsView1"
Name="id"
PropertyName="SelectedValue"
/>
</UpdateParameters>
</asp:SqlDataSource>
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Jan 17, 2010
i want to build a datagrid bound to a datatable with several columns. One column has only a dropdownlist with the number of the rows in the datatable.
Here a samplescreenshot:
[URL]
I know how to bind the columns to a grid and its no problem to create such a dropdown list with the content for me, too. But i dont know how to sort the complete datatabl after changing one value of one dropdown listbox.
So, how can i resort the values of a datatable column based on a given value and the datarow id?
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Sep 14, 2010
im having a gridview in which im displaying records and status.....this gridview shows employee applied leave waiting for approvals..
so in gridview i have chabged the status button as radio button list and giving two choices as approve/reject ....so HOD seect relevant button and update the grid...
how to do this?
1) do i need to place a button on footer and do some write code behind?
2) or any other easier way?
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Oct 22, 2010
For right now, the View Account for an individual user has the following setup on the aspx page.
[Code]....
In the MembershipUserODS file i have the following:
[Code]....
And in the code behind page i have this...
[Code]....
The page posts, when you click the update button, but the data never changes / updates.
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Nov 27, 2010
I am using asp.net 3.5 c#. I am trying to do this:
In one page, a user can insert some stuff (name, phone .. etc) to the database. And then the user should be able to see the rows he added as a list automatically in a datalist (or other control). As he inserts rows, it appears in the datalist.
I tried to use update panel and inside it datalist, with a button as a trigger but it did n't work with me!
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Sep 20, 2010
I've got a single table, with project information and schedule information. To make the data easier to present, I created a tab control with two panels (a detailsview in each). The first tab is for project info, the second tab is for schedule info (again, all fields in the same table). The problem is, if i change info in both tabs, and then hit the update button, only the data from one tab is added to the table. I think this problem is simple to fix, and boils down to the way I have the page organized, but I can't quite figure it out.
I've boiled my code down to the following conceptualized structure:
[code]....
When you click the update button, you return to the listview, but with only the information from your current tab saved. How can I get it to update from both detailsviews?
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Feb 21, 2011
i got a problem to update my database which i bounded to datagrid. The problem is, i want to update my database only by clicking one update button at the bottom.. when the user click it, all the fields will be updated to database.
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Jul 10, 2010
I want to update multiple rows of gridview (only price field. for that i have added textbox) on click of update button which is outside of gridview.I have done following way
<asp:LinkButton ID="lnkUpdate" CssClass="BlueButton" runat="server" OnClick="lnkUpdate_Click">Update</asp:LinkButton>
[Code]....
Up to this its working fine but when no textbox updated then no need to go in for loop so i am looking for confiramtion before updating rows please help me how to do that becausei am less aware with javascript. another problem is textbox value disappear when page index changed how i can retain that values.
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Mar 23, 2011
[Code]....
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Jun 28, 2010
When i try to update a row using the update functionality of Gridview it updates all the rows rather then updating that specific row which is in edit mode.
[Code]....
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Apr 3, 2010
I have the follow form view:
<asp:FormView
DefaultMode="Edit"
ID="FormView1"
runat="server"
onitemupdating="FormView1_ItemUpdating">
<EditItemTemplate>
<asp:TextBox
ID="txtPrimerNombreNatural"
runat="server"
SkinID="texto"
MaxLength="30"
Text='<%#Bind("PrimerNombre") %>'></asp:TextBox>
<asp:TextBox
ID="txtSegundoNombreNatural"
runat="server"
SkinID="texto"
MaxLength="30"
Text='<%#Bind("SegundoNombre") %>'></asp:TextBox>
</EditItemTemplate>
</asp:FormView>
<asp:Button
ID="Actualizar"
runat="server"
Text="Button"
CommandName="Update"
/>
This formview is bound in this way:
protected void Page_Load(object sender,
EventArgs e)
{
Persona _persona =
new
Persona();
_persona.ObternerPersonaByUserIdApp(1);
List<SILPA.AccesoDatos.Generico.PersonaIdentity> persona =
new
List<SILPA.AccesoDatos.Generico.PersonaIdentity>();
persona.Add(_persona.Identity);
FormView1.DataSource = persona;
FormView1.DataBind();
}
When the page is shown, the textbox are filled correctly, this textbox are filled with the "primernombre" and "segundonombre" properties from the persona class. After this, If I change the textbox, and after click the update button, I need to update the persona class with the changes from the textboxes, then I call a ActualizarPersona method for updating the database. How can I do for update the persona class when I change the textboxes and click the update button? I try this method protected void FormView1_ItemUpdating(object sender, FormViewUpdateEventArgs
e)
{
}
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Oct 15, 2010
My scenario is that when a user clicks a link to download a file, a large file will be downloaded. But many files are zipped and to become a requested large file, files are needed to be unzipped at the server side and download it. Meanwhile unzipping the files, I wanna show to the user how many percent of files have been unzipped.
So, I save the current condition of % into the session () and it has been updated accordingly and in the other page session is called using the iframe to be seem as they are in the same page. But the problem is that,
while updating the iframe with update pannel and timmer tick event doent work and only when unzipping process has done, it works.
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Feb 3, 2011
I have stumbled upon the issue when I need to retract html controls I've added client-side using JavaScript after the postback (due to server-side validation - this is not optional). I'm trying to achieve this is cr*p and there's a better way of doing this.
basically, what I'm doing is cloning a textbox control for up to 10 times on the page when the user hits "Add" and storing entered values from each of those texboxes in a hidden field to read from in the code behind. This works fine, however, when the server side validation doesn't pass after postback, all those dynamically added (cloned) texboxes disappear, since ViewState knows nothing about them.
I am considering 2 possible solution, both of which seem hacky:Rebuild all cloned textboxes on document onload() using stored values in the hidden field wrap the form in ajax update panel and place the cloned texboxes outside of it, thus, not refreshing this part of the screen on postback now, is it possible to somehow "update" ViewState to make it aware of all the html controls I've added using client-side script? I'd like to achieve this with client-side script, therefore not considering cloning textboxes on server-side,
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Jan 18, 2010
i would like to update database which resides on web server from my database which is on my computer. One method is to upload the file and than make a connectionstring. But its not possible while I do so in every 10 secs.
Is there any method which can make the connection string from desktop to web server or any other way.
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