Forms Data Controls :: Saving / Changing Items At The Last Second In A Formview?
Nov 22, 2010
I have a column value on a Formview and I want to change it at the last second to a programmatic value.
So I created this function to work on ItemUpdating so that the value of one of the formview fields could be changed programmatically to a constant I do a response.write value to make sure there is something in there. However, checking the database, the only getting written is null:
[Code]....
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Apr 19, 2010
I am displaying data in a Webform View..i need to save the webform view as an HTML file ..
this HTML file will be viewed later using internet explorer.
i was not able to save the webfom as... it is grayed out..
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May 30, 2010
I have created a FormView whose defaultmode = "insert". When loaded the FormView displays the InsertItemTemplate. At the top of the page is a DropDownList used to select Clients. I have added a list Item to the DropDownList with value = "0" and text= "Select Client" option. So the Page is in Insert Mode. SO FAR EVERYTHING IS AS EXPECTED.
When I select a Client from the DropDownList, the page remains in Insert Mode (Don't understand why? ) Could it be the default Mode setting? So I added the following vb code.
Protected Sub ddlSelectClient_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlSelectClient.SelectedIndexChanged
If ddlSelectClient.Text <> "(Select Client)" Then
If FormView1.CurrentMode = FormViewMode.Insert Then
FormView1.ChangeMode(FormViewMode.Edit)
End If
End If
End Sub
So after an existing Client is selected, the FormView Mode should be changed to EDIT. AND INDEED THE EDIT ITEM TEMPLATE IS DISPLAYED.
Ah but life is not so simple (after all this is a Microsoft Application). So I enter data in some fields and click the [Update] Button.
Then I get the following message:
FormView 'FormView1' must be in edit mode to update a record.
THe FormView displays the Edit Template, the Update and Cancel Buttons are displayed. All this should mean I am in edit mode.
Just call me FrankenSoft !@#$%^^& or is it MicroStein?
Oh by the way I'm using Linq to SQL data sourcess. Should I be? I'm having a lot of problems with the FormView using Linq.
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Oct 29, 2010
I have a page that displays information about a patient's case. The page has some textboxes, labels, etc., and it also has a FormView. The FormView displays details for a particular TEST for this case. The user can page through the different tests, and change some of the data.
There is a button on the page to save all of the case information. I need to save ALL of the tests bound in the FormView.
The two issues are:
I can't save the Test until the user clicks the "Save Case" button (because this is when the case is first inserted into the DB).I would like to avoid have a "save test" button inside of the FormView (because then the user has to page through all tests and save each one manually)How would I do this? I thought about saving the test info in Session somehow.
I have a page with some TextBox controls and also a FormView control that displays details for a particular version of a test. The user can page through the different versions. The user can edit some of the fields in the FormView.
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Feb 2, 2010
There is a page in my project named Messages.aspx that shows the messages received [but obviously], using the ListView control.
I want that the user should be able to see the body of the message on the same page [Messages.aspx] just by clicking the subject of the message, which is ofcourse a link.[Messages.aspx?msg_id=some_id]. Hence the user would actually reload the same page to read the contents of the message.
Now what I want is that I should be able to write some code that would change the <LayoutTemplate> and the <ItemTemplate> of the listview during the runtime. [in the page_load event of course]
Previously the listview would look like this:
[Code]....
After the clicks any message to read it and the page gets loaded, I want the layout of the listview to look like this.
[Code]....
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Nov 17, 2010
In an asp.net 3.5 web app, I have a page with the following markup/code (this is the brief version, but I believe I got all the relevant info).
[Code]....
The form contains 2 different record types, accessed using the paging controls, depending on the ParentSR field; a parent SR will be something like '1234' while its sub-record will be something like '1234.1'. There are only a few differences in the fields used between the 2 different record types and that is why they are stored in the same table. However, the activity depends on the record type. When browsing from the parent record to the sub-record, the itemtemplate loads fine (notice in the formview's datasource
query, that the sractivity_id field is being pulled along with the subquery value). But when going to edit the record, the page throws an error:
System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.ArgumentOutOfRangeException: 'ddlActivity' has a SelectedValue which is invalid because it does not exist in the list of items.
If i click 'back' and retry, it may take 3 attempts, but then the edittemplate will load just fine. I should also point out that this error does not always occur. I've been trying to figure this out for a couple months and it is driving me nuts, mainly due to the fact that I can't reproduce the error in development--it seems to only occurr in production. Anyone with any thoughts on what is going on?
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Sep 10, 2010
I would like to ask if it is possible to access data on a master FormView from a nested detail FormView.
I have a main form (master) with several tabs (detail) and would like to display a label with text from main form that is hidden by the tab at the moment of editting. My asp page looks like this.
[Code]....
Is it possible to get the value of the label CompanyTextLabel from CompanyTextBox using just ASP.NET expressions or something similar without writing c# code in .cs file?
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Apr 10, 2010
I have a nested formview. I need to set a value for a textbox when I'm in insert mode from parent formview which is editmode.
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Mar 22, 2010
After I use FormView in InsertMode and the record is added, I want it to switch directly to EditMode.
I assume I would place this command in this action:
protected
void FormView1_ItemInserted(object sender,
FormViewInsertedEventArgs e)
However, I can't find the correct command to issue.
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Jan 24, 2010
I have a formview that use the formview iteminserted event. The information inserts into the formview fine, but all cells blank out after the insert. How can I make it so I can show all the values I have inserted show up in the formview after the inteminserted event?
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Mar 3, 2011
Is there a way that we can change the color (which is defaulted to blue) when the items in the list box are selected? If so can you provide me a sample for it?
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May 10, 2010
I'm having a bit of trouble with knowing how I can save items from a list I have in Application state in the global.asax as- Application[""].
My controller basically takes in some user input, I then pass this to another classes Method as parameters it gets added to a list all the time. This data thats getting added to the list I want to store it, but without using a db. By using Application State. . I have been instantiating this class and calling its method to return the list of items but I dont think Application State is saving it.
Here is what I have so far. .
protected void Application_Start()
{
RegisterRoutes(RouteTable.Routes);
TimeLineInformation t = new TimeLineInformation();
IList<SWTimeEnvInfoDTO> g = t.getInfo();
[Code]....
The SWTimeEnvInfoDTO type has get and set methods for the data.
I am calling the application from a View as well. It works with a string
Application["AppID"] = "fgt";
and shows this once i read it from my view.
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Apr 17, 2010
I need to change my DataKeyName for a Formview in Code, but I get the error
cant convert string to [string]
How do I change the DataKeyNames programatically? It has just on DataKeyname, not an array.
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Sep 2, 2010
I have a page with a FormView on it. The page is strictly for adding records to a Table. I have the FormView bound to an EntityDataSource and everything works greate except for one thing.
I want to initialize a date field in the FormView to today's date. So, in my page_load event I have:
if (!Page.IsPostBack)
{
//Initialize SetupDate to today.
TextBox setupdate = (TextBox)fvJob.FindControl("txtSetupDate");
setupdate.Text = DateTime.Now.ToShortDateString();
}
The first time this page loads, the txtSetupDate field is initialized.
Although, and subsequent loads of the page doesn't initialize the Text Box. I step through the code in the debugger and I can see that the code is executig, but something (the FormView bind?) is "clearing" the Text Box.
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May 13, 2010
i have a countries list. Each user can check multiple countries. Once saved, this "user country list" will be used to get whether other users fit into countries certain user chose.
Question is what would be the most efficient approach to this problem...
I have one, one to save user selection as delimited list like Canada,USA,France ... in single varchar(max) field but problem with it would be that once user from Germany enters page i perform this check on. To search for Germany i would be needed to get all items and un-delimit each field to check against value or to use sql 'like' which again is pretty damn slow...
Just to make sure, many users will have their own selections of countries from which and only they want to have users to land on their page. While millions of users will reach those pages. So the faster approach will be the better.
technology, MSSQL and ASP.NET
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Dec 28, 2010
I have a panel inside a formview that is supposed to become visible when a checkbox (also inside the formview) is checked. I am able to access the controls, but I'm not sure how to actually make it work. This is my codebehind so far, I know it's not right, but it gives a basic idea of what I'm trying to do.
Protected Sub FormView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles FormView1.DataBound
If FormView1.CurrentMode = FormViewMode.Edit Then
Dim checkGenEd As CheckBox = FormView1.FindControl("checkGenEd")
Dim panelOutcome As Panel = FormView1.FindControl("panelOutcome")
If checkGenEd.Checked = True Then
panelOutcome.Visible = True
Else
panelOutcome.Visible = False
End If
End If
End Sub
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Jun 23, 2010
I have a multiview inside an updatepanel. in one of the views, I save a value in a session object like this:
Session["xyz"] = "some string value";
Then I switch to another view and try to pick it up the value in a button's OnClick event:
string x = Session["xyz"].ToString();
But I get a null reference error. Debugging it shows that Session["xyz"] is indeed null, yet other Session variables are still there. Is there something special about Session and AJAX?
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May 7, 2015
below is the code I have but I want to change the ddl.Deal(dropdownlist) to cbl.Deal(checkboxlist).. How can I loop throught each items if checked. and if all items are checked. to filter my data and show in gridview..
protected void btn_Click(object sender, EventArgs e)
{
myAPI.myWeb myAPI = new myAPI.myWeb();
myAPI.SearchParameters sSearchParameters = new myAPI.SearchParameters();
[Code].....
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Nov 26, 2010
I have a dropdownlist in a formview that looks like this:
<asp:DropDownList ID="DropDownList5" runat="server" AppendDataBoundItems="True"
DataSourceID="SqlDataSource6" DataTextField="StaffName"
DataValueField="StaffName" SelectedValue='<%# Bind("LetterName") %>'
Width="155px">
<asp:ListItem Value=""> </asp:ListItem>
</asp:DropDownList>
I am trying to add the value from a textbox which is also in the formview into the dropdownlist as a list item. I currently have this code for it:
Protected Sub Formview1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles FormView1.PreRender
Dim dropdown As DropDownList
Dim listvalue As TextBox
dropdown = FormView1.FindControl("dropdownlist5")
listvalue = FormView1.FindControl("textbox1")
dropdown.Items.Add(New ListItem(listvalue.Text, listvalue.Text))
End Sub
This code works and adds the new item to the dropdownlist if I have no SelectedValue set for my dropdownlist. However when I set the selectedValue I get the error message:
"'DropDownList5' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value"
This is the bit I dont understand because the value does now exist in the list of items as it was added in from the textbox value. Does it try to do the selectedValue before adding my list item? If so how can I add the list item first, or do I need to set the selectedValue in the code after adding the list item?
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Apr 1, 2010
Using the Interop for Excel 2003 I had a nice little link that saved or opened the repeater content as .xls. Now we are using Excel 2007 and I get file format error messages. When I click the OK button on the error pop-up Excel closes. Does anyone out there know how to convert my code to handle the .xlsx format? I've been reading up on Interop for 2007 but none of the examples seem to work for this particular simple task. Here is my code from the "Export to Excel" button click:
Protected Sub btnExport_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExport.Click
' Send HTTP headers that specify Excel filename, MIME type, and character set
Dim sTemp As String = "attachment;filename=CoverageCase" & Session("OpenCase").casekey.ToString & ".xlsx"
Response.AddHeader("content-disposition", sTemp)
Response.ContentType = "application/vnd.ms-excel"
Response.Charset = ""
' Create objects used to render the controls
Dim strw As New System.IO.StringWriter........
I found a thread from a couple of years ago dealing with this but there was no solution [URL]. There were a couple of tortureous work arounds but neither work for me.
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Mar 26, 2010
I have a gridview, where I set the columns based on the columns in a datatable. I have a class that implements ITemplate, and creates a textbox template field. Everything works good, I can display my grid with the correct columns and headers. The probem comes up when I click a Save button, to save the user input. Of course the page postbacks, and I re-create the columns on PageInit. However, all the data the user entered is gone.
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Jan 27, 2011
I am saving grid data. Grid contains one textbox in item template column. But it was not saving any data, which was entered in textbox(Just saving 'NULL'). There was not error while debugging. Below is code i am using.
[Code]....
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Feb 17, 2011
I created a column named InputUserId for the purpose of saving the user's id upon inputing data using formview(so I know who inputed). I would like the user's id to be saved in the table (column InputUserId) and the table's Id (RId) to be saved in the user's profile.
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Sep 6, 2010
Detailsview edit not saving
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Feb 17, 2010
I have two repeaters (one nested in the other) with checkboxes for each. AutoPostback is set to true. ViewState is enabled. for the repeaters. The layout is similar to a treeview control.
I am having trouble retaining state for the child repeater's checkboxes when I check the parent repeater's checkboxes. How can I retain these child checkboxes as I click on the parent's.
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