Web Forms :: Using Asp For Data Entry And Best Practices / Housing That Data Until The End Of The Scripting Has Been Completed?
Apr 19, 2010
I am developing an ASP.Net 2.0 project that a call center will use for their scripting and data collection. Each screen will present the call center associate with a question and depending on their answer, will move on to the next screen. My question is what is the best practice for housing that data until the end of the scripting has been completed (i.e. in a Dataset or datatable), where should the storage container be declared and what's the best way to control the back button so it doesn't lose the data and try to repost?
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Apr 20, 2010
I'm looking for some opinions on how to go about the following:
Say I have a wizard control in my website, and I've completed all the steps on the wizard and I want to redirect to another page after the "Finish" button I've clicked. So, then after that I logout of my site, and go back into it bearing in mind the wizard has been completed, I want to redirect the user to another page and by-pass this wizard control. Would I setup a flag in the database, to indicate if the wizard control has been completely filled or not. If status = true then redirect the user to different page (and bypass wizard)... but if status = null then make sure user still can go through steps in the wizard control.
[Code]....
set a flag to state whether all of the wizard has been filled in or not / otherwise go back and complete the wizard?
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Aug 17, 2010
I'm setting up a fairly complex gridview, and running into an issue with allowing some keyboard shortcuts to cause a submission postback. I'm hooking the onkeydown event on all of the editable elements within my gridview (in edit mode, as well as a separate-but-similar set of elements in the footer, used for row insertion), and calling the following function:
[Code]....
Here is the definition of LinkButton1, which is within a TemplateField in MasterGridView:
[Code]....
The gridview is not populated until after the user has made some input to the page, so I can't just refer directly to MasterGridView.SelectedRow.FindControl("LinkButton1").UniqueID for my eventTarget within the PostBackOptions (if I run this right now, it'll evaluate to "not initialized". But, I don't know how I could get it to recheck the value after the page has been created. There's gotta be a better way to make this work.
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Apr 3, 2014
I am using AsyncFileUpload to upload the file on OnUploadedComplete event i am binding the gridview with new datasource.On debugging its show that gridview is binded properly but after uploading the file gridview is not refreshed.My Gridview is not inside update panel
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Jan 10, 2011
After I complete an order and return to my products area my shopping cart still shows the items that were ordered. I have checked the database and the items are not there anymore. somehow my code is remembering the data.
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Jul 28, 2010
I am currently working on a project now, i have created a web form and successfully stored the data when the user fills in the textfield, dropdownlist and radiobutton and clicks on the submit button. Now, i need to show the lastest data entry in a detailview in a new page when the user clicks the submit button. Is this posible? How should i go about it? Or is there any other way for i did not use a gridview for users to enter their information.
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Dec 15, 2010
I've been out of the ASP.Net arena since 1.1, and I'm starting to get back into it after a hiatus.
In the past, I would generally create SqlDataReaders, wire them up to pull from tables in a database via direct sql or accessing database views (mostly in MSSQL), grab the data, and display it in some datatable, or datalist.
Modifying data would usually be calling a stored procedure in the database to add/modify data, and then retrieve it afterward.
Now that I read up, I see there are alot of new things in ADO.Net world; strongly typed datasets, auto-generated adapters, etc.
My question is, does anyone have a good reference on best practices (or a book recommendation) on how to handle data access, and data manipulation and display now? I'm assuming that there are more automatic ways to show and manipulate data than before, but the new details are quite vast (which is good), but slightly overwhelming for me.
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Mar 16, 2010
We have a GUI which runs on ASP.NET 2.0 framework (Client-Server model). From the support perspective how can one find whether the pages which are opening on GUI at any point of time is a server side scripting or Client side scripting.
The reason why I ask this is because I understand that some of the codes are executed by the browser such as Javascript. So, if there are such scripts which are handled by the client browser, how can one find out that it is the Client side scripting which is running at that moment.
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Nov 24, 2010
I have a web application where users can upload the photo. I do have a windows service running which takes the uploaded photo and crops it to different sizes. This runs in a specified interval. Photo will be visible to the user once after it's cropped. So once user uploads the photo and photo cropper has not yet run, they wont be able to see the photo. Due to this behaviour user thinks that there was some error uploading the photo and they will upload it again and again.
where the photocropper runs immediately when the user uploads the photos which is queued.
I am using asp.net & C#.
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Feb 7, 2011
Here is the code of my Repository class:You see, I use singleton here. Also you see, there is a data context as class variable of Repository class.The main reason to use singleton here is a wish to avoid using 'using(NorthwindEntities context = new NorthwindEntities())' in every function.
[Code]....
This Repository is used in ASP.NET application. So only instance of NorthwindEntities (context) is used everywhere and that's why I never dispose it.So my question is: Won't this code cause connections to the DB that are not closed?
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Apr 8, 2010
I have to pass information from a desktop application to Web application and vice versa. What are the best practices that are regularly used? Currrently I'm using Asp.Net and a Winforms. To pass data to Web Site im creating a (POST) WebRequest and posting an xml to the siteTo pass data to Application im using .Net Remoting from Asp.ne(I'm using Winforms is an adminstration and monitoring application.)
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Mar 21, 2010
How can i prevent a user from entering the same data twice, i guess i need some validation in somewhere?For example:I add a name of a city, added successfully to the table.Try adding it again, click add and the program crashes.What type of coding do i need for this, some type of compare tool or something for the table?
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Jun 29, 2010
I m developing new shopping cart by using mvc2.and i have followed sample video store application posted in asp.net.my question is: What is the best way to keep shopping cart data.is it in db or a session.
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Apr 15, 2010
I am trying to use a cascading drop-down for data entry. However, I'm having problems because I need to set the value of the drop-downs when I load the screen. I use a stored procedure to retrieve the values from my database, and then set the drop downs in my code-behind. Then the web service kicks in and wipes them out. :( How can I set these values and utilize the cascading drop down control?
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Apr 20, 2012
After I developed the system by usin vs2008 , my supervisor asked me to develop form in the interface so they can enter information about projects as(project code,project title, country,sector,year) to the database with out dealing with the database in the backend .. so how can i develop it because i am still new to the vs.
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Jun 27, 2010
I have a user control that I am explicitely calling from an aspx page. In page_load of hte aspx page I have the following, myControl = (DynamicTable)Page.LoadControl("../inc/DynamicTable.ascx"); Then in my code where I want it to execute the control, I have this pnlESDDEnrolled.Controls.Add(myControl); where pnlESDDEnrolled is the panel I am loading it into for display. So, I execute the aspx page, it links off to the user control, populates the control, returns back to the aspx page and the page dispalys with the user control in the middle of it. All is well.
The problem comes in when updates are made on the user control. Keep in mind, that other data is updated on the page as well, and the update button resides on the page, not the control. Anyway, when the update button is pushed, the button_click event is fired on the page, but the updates that I made on the user control are lost. Since the page loaded the user control and then the usercontrol executed the page unload method, the page has no knowledge of the user control anymore. Thus, when the update button on the page is pushed, I guess I am not really sure what happens with the updated data on the user control. All's I know, it is lost.
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Mar 15, 2011
I have a simple web form with controls such as test boxes, radio buttons, etc. I also have an empty SQL database created from within Visual Studio Express 2010, in the same project. I want to be able to open the web form, enter text, for example, in a text box, and have it saved in the corresponding field in the database. Ditto with the choice I make from a Radio List box, etc. Is there a simple way of connecting a control on a form with a field in the SQL database? I've tried a number of ways but can't seem to do it, though I realise it must be simple. I also think the control need to be in data entry mode, if there is such a thing, rather than automatically looking for data within the database to display (there is none). I'm new to SQL server and ASP.NET in general, though I've been through a lot of the excellent video tutorials etc.
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Dec 7, 2010
my C# web application contain accessing of database on the basis of datas selected from a dropdown list.. and my pblm is i cant access the first entry from the dropdown, dropdown list contains different dates,when user select one date from dropdown it will redirect to another page.. the page shows details from database on the basis of this particular date.....my C# dropdown's selected index changed code is shown below:-
[Code]....
and HTML code corresponding to this is:-
[Code]....
i cant access the first data from dropdwn,even it cant redirect to target page.. other entries (the 2nd 3rd entrie etc) was accessible and it shows the details from database on the basis of that corresponding value(usually some date).
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Apr 30, 2010
I have a web page with a Form a Button, a TextBox and a DataGridView in it. The DataGridView uses a SqlDataSource as its data source. SqlDataSource has one parameter which gets it's value from a
form parameter (TextBox1). When the page is opened for the first time I set the TextBox1 default value in code behind:
protected void Page_Load(object sender, EventArgs e)
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Feb 24, 2010
i have upgraded the requirement entry screen with some new values. I can able to insert and update the values for new entry. But if i'm trying to update the old entries the datareader does not fetching the values from database. please provide me some tips regarding the datareader
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Feb 28, 2011
How to validate user entry to cell in GridView and replace the cell value on the other column?
Ex :
i have a gridview with 2 columns (A & B), on both columns i change it to TemplateField (TextBox).
Now on whatever row on column A, i want to validate the user entry when user leave the cell, how to achieve that ?
Based on user entry on column A, i will do some data lookup and get a value returned from the server, how to tell the gridview to replace the value on column B (on the same row) based on the value returned from the server.
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Mar 26, 2010
I have a detailsview form which passes data to a sql database. What I'd like to do is present a message when the number of rows in the destination table exceeds a specified number (40) or redirect the user to another page.
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Nov 11, 2010
I working on a ASP.net project, database is MS SQL
for a reason that cannot find why, when I insert an entry to the data base, the entry is duplicated.
The controll runs this:
Protected Sub grdCustomer_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles grdCustomer.SelectedIndexChanged
Dim Quote As New QuoteBLL
Dim Customer As New BeeSafeShutterSystemTableAdapters.CustomerTableAdapter
[Code]....
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Mar 11, 2010
I have Gridview that is populated from a data table, there are two additional template columns which are not bound (one checkbox and one textbox). I intend for the users to fill data in the unbound textbox and check the checkbox as needed. (there really is a good reason why the data is constructed in this way)
here is the problem, when the user enteres data into the textbox and hits enter, the gridview appears to postback, which wipes out the checkbox and the data in the textbox.
I tried setting the enable view state of the grid to false, that was supposed to stop postback but no luck. I have the enable view state of the textbox and checkbox set to true and autopostback set to false. but still no luck
so I need to either stop the postback or intercept the enter key in the text box and cancel the action, but that is a bit beyond me at this point
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Oct 11, 2010
I have a simple FormView (fvDespatchPart) which updates the status of an order and it's despatch date; the despatch date being retrieved from a textbox (txtRentalDespatchDate)
held within the FormView. The FormView's DefaultMode is set to Edit.
I have been trying to set the default entry for txtRentalDespatchDate to today's date in the code behind, using:
Dim dtNow As Date = Today()
Dim txtRentalDespatchDate As Webcontrols.Textbox = fvDespatchPart.FindControl("txtRentalDespatchDate") [code].....
I have had no trouble doing this in the past with FormViews whose default mode is set to Insert or Item, but in Edit mode it just does not seem to want to co-operate. I have read a few help posts, and have tried:
Putting that code in LoadComplete, PreRender, PreRenderComplete Page events, as well as the FormView's databound event. I've also tried nesting it within a ...
If fvDespatchPart.CurrentMode = FormViewMode.Edit Then
End If
... just to make sure if is in the right mode.
Nothing yet has resulted in anything but the same old error.
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