DropDownList In A DetailsView = How To Preserve The Values That Are Already In
Jan 13, 2010
I really have a big problem(stuck) with two dropdownlists inside a detailsview.I have 4 detailsview : DdlRt,DdlRt2,ddlMobv1,ddlMobv2. Basically what happens here is that DdlRt2 gets populated when DdlRt is selected and ddlMobv2 gets populated when a specific value from ddlMobv1 is selected.
In code posted above the detailsview has a "Update" command and the problem is when the update command is executed the data is successfully posted to the db BUT! THE VALUES from DdlRt2 and ddlMobv2 dissapear! And I can't insert any more Items. The only Item that stays in these two dropdownlists is the default "Select Department" item which is't set in codebehind but is set in .aspx.....I can't figure what I'm doing wrong here It must be something with databinding & events.
So my question is "Why can't I insert any more items to these two dropdownlists after the "Update" command on the DetailsView is set or how can I preserve the values that are already in"?
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataSourceID="odsRegister"
DefaultMode="Edit" Height="50px" Width="125px" > [code]....
View 1 Replies
Similar Messages:
Oct 8, 2010
I have a problem I have been googling the entire day and still have no soloution. I have a detailsview with 2 dropdownlists. Fisrt one is ddlCaregory. Second is ddlSubCategory. The value is passed from the first ddl to display the SubCategory linked to ddlCategory. Both ddlCategory and ddlSubCategory are Templatefields. This is also in VB.
The Details view has a sqlDataSource (sdsApplicants), ddlCategory has a Datasource (sdsCategory) and ddlSubCategory (sdsSubCategory). ddlCategories lists the data returned from sds Categories and save any changes to sdsApplicants. I can get ddlSubCat to display the correct SubCatagory bases on ddlcategory sesection but as soon as I try bind it to sdsApplicants I get the following error
'ddlSubCategory' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value
View 4 Replies
Feb 17, 2011
I have EntityDataSource for DetailsView which is in Edit mode by default (showin Update, Cancel link buttons).
This datasource also has foreign key called PecID. If I change the value in textbox bound to PecID, it works fine.
Entering IDs is not very user friendly, so I add dropdownlist and new datasource.
When I select new value from dropDownList and press update the DropDownList's selection is restored to original (previous) value.
Other values in textboxes are saved as expected.
After few hours of trying to figure out what is going on, I got lucky. I figure out that it is important the order of TextBox and DropDownList in field template.
This is the working order (textbox before DropDownList)
[Code]....
This one doesn't work [Code]....
View 2 Replies
Feb 21, 2011
I am trying to figure out how to preserve the values of the controls on this page (just the user-submitted commission value and the sales region (eastern is 10% and western is 20%)).
The code is as follows:
<form id='frmShowCommSingleDocKeepState' action='afShowCommSingleDocKeepState.aspx' method='get' >
<div>
<%
Dim strSale As String
Dim dblSale As Double
Dim strRegion As String
Dim dblComm As Double
Dim E As Double = 0.1
Dim W As Double = 0.2........
View 2 Replies
Mar 10, 2011
I have a form, mostly consisting DDL's. I constructed this form using a Master page with about 10 different pages attached. Each page consists of roughly 10 to 20 DDL's. My goal now is to navigate from one page to the next and back with out loosing the selected values in each of my DDL's on each page. I have thought about assigning each to a Session but that would really bog things down considering the amount of Data i would be storing. I would love to go the easiest route but my mission here is most efficient.
View 12 Replies
Mar 13, 2010
I have some filter and one grid.And grid have some buttons like modify/edit.I am selecting some value from filters and getting some result in grid.now i want to modify some record.when i come again on grid data in filter should be remain same.
There is two pages.one contain filters and grid second contain modify details.
View 1 Replies
May 7, 2015
I have two dropdownlist in cascading working, in my file file.aspx, all work good.the selected values from cascading dropdownlist bind my repeater. when select item inside repeater redirect me to second.aspx. when comeback to first.aspx i lose all selected values in cascading dropddowlist and also values in repeater.
View 1 Replies
Dec 4, 2010
I have a user control that has some drop down lists. These DDLs are used by the user to filter their product search on my search page. A button is used to post the form and get the results of the product search. Those results are displayed on the results page, which also has the search filter user control on it. I'd like the results page to have the values of the DDLs be preserved from the search page. Example: user selected color of red and size of large on the search page. When the results page is displayed, I'd like the selected color to be red for the color DDL and the size to be large for the size DDL. How can I do this?
View 9 Replies
May 7, 2015
I have a dropdown populated with data , based on a true / false condition i change the dropdown item color when dropdown gets loaded initially the item color are proper based on condition. but if i select a particular item & then again click on dropdown the item color disappear show to retain the item color.
View 1 Replies
Mar 8, 2010
I want to making another dropdownlist visible=false when clicking in dropdownlist on the same detailsview?
View 4 Replies
Mar 10, 2011
I understand I need to load my dynmaic control on every postback and preferrably in Page_Init(). But my dyanmic controls are loaded from a dropdownlist selectedindexchanged event handler. Now after any postback, my dynamic controls are gone. How would I force it to load on every postback ?
View 2 Replies
Mar 18, 2010
DetailsView with DropDownList
Code]....
View 5 Replies
Jul 21, 2010
I have the following code in my codebehind Page_Load function that sets the default selected value of a dropdownlist in detailsview based on the name of a record returned from a sql data query.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.Page.Title = "Editing record"
'Perform dropdown list population operations
Dim myDDL As DropDownList = DetailsView1.FindControl("reqCategoryDropDown")
If Page.IsPostBack = False Then
[Code]....
After which I set attempt to set the selected value of the dropdownlist as above. The page is still not setting the selected value.
View 3 Replies
Oct 9, 2012
UsingĀ dropdown in gridview and bind the values in dropdown then based on dropdown display the value in another column.
View 1 Replies
Oct 14, 2010
I was wondering if it is possible to convert a detailsview row into a dropdownlist, populated by data from an access table.
Also is it possible to attach a calendar to a row of the datailsview row, so that the row will be populated by a date upon user selection.
View 2 Replies
Mar 12, 2010
My DetailsView is bound to a table where I have a DDL (drop down list) where the selection queries the DetailsView. I tworks except for when I try to select the first item (after selecting other items). It doesn't query the first selection. But it queries the other selections.
View 5 Replies
Jul 7, 2010
Is there an easy way to trim values in a details view during edit mode? I tried modifying the database query to trim the values, but it didn't like to do both ways databinding after that. I tried looking through all the properties of the text boxes themselves and found nothing. I know I could add an event handler for the databound event, and set all of the values one by one, but this is an application that has existed since before my employment and there are over 40 values in this details view, all in text boxes with seemingly random names that have little to do with the values they represent or obvious naming scheme.
I thought maybe there was a way to way to iterate over the DetailsView.Fields property, but couldn't figure anything out there either. I am not allowed to change the schema from CHAR to VARCHAR either. Any other quick ideas? There is a strong likelihood this page will change again, and I would like something that might take care of this problem for any new fields added in the future without extra work. Unfortunately, redesigning it is not anywhere near a top priority right now, so a quick fix to alleviate some of the headache of using this monstrosity is all I am looking for.
View 1 Replies
Mar 12, 2010
I have a dropdownlist bound to a table and the selection filters the detailsview. After a new record is inserted using the detailsview, the new record is displayed in the detailsview and the initial record is displayed in the dropdownlist. After the insert, how can I get the dropdownlist to display the new record?
View 4 Replies
Nov 17, 2010
How do i use drop down list in the details view? While inserting user should be able to select the "Car Name" from the drop downlist and the "Car Id" should be get inerted into database. Also while editing the appropriate Car Name should be selected in the drop down list.
How the HTML code and the Binding should look for this details view ?
View 2 Replies
Oct 24, 2010
I have been struggling with DetailsView for quite some time.
Only chkActive and txtStatement in the code below are Editable. So when I click Edit, edit the fields and click Update, it does go to the ItemUpdating event, but I'm not being able to retrieve the updated values.
I get error-
Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.Label'.
'Vb code
Code:
[code]....
View 9 Replies
Aug 6, 2010
I use DetailsView to insert rows in database. Row has fields id, subcategory_id etc. I want to fill dynamically dropdownlist ddl_subcategories, which is used in TemplateField. Selected item value of first dropdownlist ddl_categories is used as parameter for generating collection for ddl_subcategories. I try it with using UpdatePanel, but method DataBind returns error "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.".
There's code of web form
[code]...
View 2 Replies
Nov 2, 2010
I am trying to use a DropDownList in a DetailsView for the ItemTemplate, InsertItemTemplate, and EditItemTemplate. I must bind this DropDownList to a SQL-Server support table using a function that returns a DataTable. I am not allowed to use a SQLDataSource in my backwards IT department. So, not only do I need to load the DropDownList, I also need to make the SelectedValue equal to the current record that I am viewing, editing.
View 4 Replies
Mar 13, 2010
I've got a DropDownList in my <EditTemplate> and i'd like to fill it by data from database
(I can't use SqlDatasSource).
How to do that?
i was trying something like that
((DropDownList)((DetailsView)sender).FindControl("autor")).DataSource = MethodIveCreate();
((DropDownList)((DetailsView)sender).FindControl("autor")).DataBind();
on DetailsViewChanging method nut i've got error :/
View 3 Replies
Oct 18, 2010
I figure that this should be relatively straightforward, but I still can't get it to work. I have a gridview and a detailsview to set up shifts for students and teachers. I would like to be able to insert new shifts using a detailsview. I will limit the students, teachers and location to items that are in a dropdownlist. The problem is that when I handle the iteminserting event. the e.values collection doesn't contain all of the fields I want to populate. How do I add the new fields to the list. This is my codebehind:
Sub On_Inserting(ByVal sender As Object, ByVal e As DetailsViewInsertEventArgs)
View 3 Replies
Mar 16, 2011
I have a DetailsView which has two fields - one that is visible, one that is not. The first the user fills out, the second I want to auto-populate. Unfortunately, I haven't been able to find a way to set the value in this second invisible field. I've tried adding code like this to the Page_Load:
If Not IsPostBack Then
DetailsView1.DefaultMode = DetailsViewMode.Insert
Dim txt1 As TextBox = DirectCast(DetailsView1.FindControl("Type"), TextBox)
txt1.Text = "administrator"
End If
But this returns an error of "Object reference not set to an instance of an object." how to accomplish this - either using the method above or another method? The hoped for end result is that when a new record is inserted via the DetailsView that this record will include the username (entered by the user) as well as the "type" of "administrator"
View 2 Replies