.net - DetailsView Is Not Visible When There Is No Data In DataSource?
Aug 20, 2010
What to do to show DetailsView even when there is no data in underlying datasource?The problem is that when DetailsView is not visible, the command buttons are also not visible. So I can not insert a new record to a database. I would like to have always visible DetailsView with its DefaultMode set to ReadOnly.If it is not possible I would like to ask for an workaround for this problem.
One workaround which I have on my mind is to check if datasource have any records. If no then programmaticaly change DefaultMode to Insert. However this causes another problem - how to count the number of records in DataSource.All my problems are related to the ASP 3.5
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Feb 4, 2010
I know the back button always presents a problem, but this one doesn't make any sense.
I have a simple details view and a button on a page. The button sends the user to the homepage. I am trying to prevent the user from being able to use the detailsview if they click Back in their browser.
This is the button click event
[code]....
When the button is clicked...oddly the user is sent to the homepage then when they click the browser back button they are sent to previous page with the detailsview still visiible.
I know I am missing something, can someone fill me in?
Why is the detailsview still visible?
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Dec 14, 2010
I have a master/detail page using a gridview as the master, and a detailsview as the details. The gridview is set to select a record, and the detailsview picks up the ID and you can either edit that record, or add a new one.The detailsview is set up with various template fields, and if everything on the page is visible, it works OK.However, I wanted to hide the Gridview when the user in working with the detailsview. But if I do that, the detailsview doesn't update the record.
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Apr 8, 2010
I have one GridView called GV_IssTypeDesc and one DetailsView called DV_IssueLog.
The scenario is that i only want GV_IssTypeDesc gridview to appear when DetailsView DV_IssueLog is in edit mode. How do i accomplish this?
I refered to: [URL]
For now i have done the following:
UpdateIssue.aspx
<asp:DetailsView ID="DV_IssueLog" runat="server" Height="50px" Width="400px"
AutoGenerateRows="False" DataKeyNames="dbIssID" OnModeChanging="DV_IssueLog_ModeChanging"
DataSourceID="SqlDS_IssueLog" BackColor="White" BorderColor="#E7E7FF"
BorderStyle="None" BorderWidth="1px" CellPadding="3" GridLines="Horizontal">
<asp:GridView ID="GV_IssTypeDesc" runat="server" AutoGenerateColumns="False"
CellPadding="4" DataSourceID="SqlDS_IssTypeDesc" ForeColor="#333333"
GridLines="None" Visible="false">
UpdateIssue.aspx.vb
Protected Sub DV_IssueLog_ModeChanging(ByVal sender As Object, ByVal e As System.EventArgs)
If e.NewMode = DetailsViewMode.Edit Then
GV_IssTypeDesc.Visible = True
Else
GV_IssTypeDesc.Visible = False
End If
End Sub
The "e.NewMode" is underlined blue in color and it is stated "NewMode is not a member of System.EvntArgs".
How do i solve this problem?
By the way, I am using Web Developer 2008, VB.net.
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Apr 15, 2010
I have a problem that in DetailsView Edit Mode, if I go to edit fields, and set a fields visible property to false, when I update the record through the built in update options it sends a null value. If I change the field back to visible, it passes the data just fine.
Consequently, I tried just setting the field to Read Only = True, and got the same result even though the current values do show up in the edit mode, just read only.Is there anyway to hide the field but still allow it to pass the data it currently has "BACK" into the record.
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Mar 31, 2011
I am basically trying to check the contents of a field in a data base (Course) to determine if a button (btnMisfills) shoulf be displayed for a specific user. I am sure ther are probably better way of doing this, and any suggestions would be appreciated. However I am using the few tools I know how. Everything works as expected as long as the DetailsView is visible, but I have no need to display the detailsView. When I change the detailsView to visible = false, my logic does not work. Apparently visible = false means the detailsview is not created. If this is true, how else can I check for the contents of the course field?s there a way to check a field in the sqldatasource?
[Code]....
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Mar 8, 2010
I want to making another dropdownlist visible=false when clicking in dropdownlist on the same detailsview?
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Oct 29, 2010
Is it possibile to have templateField from detailsView visible only in inserMode?
<asp:TemplateField HeaderText="My Header" SortExpression="TypeName" Visible='<%# Eval("DetailsView1.CurrentMode == DetailsViewMode.Insert")%>'>
this doesnt work exception is:
Databinding expressions are only supported on objects that have a DataBinding event.
System.Web.UI.WebControls.TemplateField does not have a DataBinding event.
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Mar 26, 2010
I've written a class that contains Select- and Update-Methods for an ObjectDataSource. The UpdateMethod receives an instance of a called class. My problem is, that only properties that are Bound in the DetailsView are set, the others have their default value.Here's my code:Class declaration:
public class Foo
{
public string Prop1 {get;set:}
public int Prop2 {get;set;}
[code]...
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May 20, 2010
I have a gridview that is bound to a SQL datasource and is filtered via FilterExpression,
the FilterExpressoin is using Contro Parameters in a for of textboxes.
I want a certain button to become visible (btnInsert.Visible=true) when the filterExpression returns no results.
what event should I use? what is the code for that?
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Nov 10, 2010
i have a detailsview control. in that i have 5 textboxes.
i dont have datasource contrl and any sqlqueries.
when ever i open the page detailsview control statitically should display some values in the textboxes.
then i will insert some values threw businesslogic.
when ever i open the page detailsview display some static values in textboxes.
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Feb 16, 2011
I have a detailsview with a sqldatasource! This is my update command, but it doesn't seem to work.
[Code]....
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Sep 3, 2010
I am trying to arrange the information from a SQL record into a 3 column by 3 row table to fit the form presentation that I want. I have placed on the page 3X3 table and then tried to place a detailsview in the first cell for the first picture called P1dv.
I have place a detailsview in the last cell that would control the paging of information called Controldv. I need to fiqure out how to link P1dv paging to Controldv page action. I am using visual web dev. 2005. I am not updating or editing these are read only views.
example of what i need the form output to look like:
picture1 picture2 picture3
name1 name2 name3
Contact1 contact2 contact3
what i ave coded as of now:
[Code]....
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Nov 17, 2010
I´m trying to link the gridview to detailsview and I used this page as my inspiration:
http://quickstarts.asp.net/QuickStartv20/aspnet/doc/ctrlref/data/detailsview.aspx
But I´m trying to do that programmatically, not with the sqldatasource. So I wrote the method that binds data to Detailsview and I call it in the page_load. The problem is that I have to click two times on the select button to view the detailsview. The first time I click on the select button nothing happens.
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Aug 6, 2010
I have a gridview with a Select button. Clicking the Select button for a particular item, I need its full details displayed in DetailsView. how I can bind to DetailsView? Here is what I have so far.
.aspx
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AllowPaging="True" PageSize="10" OnPageIndexChanging="countryGrid_PageIndexChanging"
CellPadding="4" ForeColor="#333333" Width="400px" Font-Size="9pt" [code].....
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Jan 25, 2011
I have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.
Dim DST As New DataSet
DST = dataObject.RunSPReturnDataSet("uspUserProfile '" & Session("UserID").ToString & "'", "mytbl")
'Dim US As New DataSet
[Code]....
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Oct 12, 2010
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Sep 11, 2010
I'm trying to catch (in string "s") the primary key for the record being inserted via DetailsView. I have an SqlDataSource connection to an Access 2003 database. The primary key is auto-increment integer (long) field.
[Code]....
generates an error: System.Data.OleDb.OleDbDataAdapter internal error: invalid parameter accessor: 12 BADBINDINFO.
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Jan 28, 2010
I am trying to insert a foreign key into detailsview so that user didn't have to enter value every time. I am using the following code to do this but it is failing. I am not sure what needs to be done now.
Protected Sub LinqDataSource1_Inserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LinqDataSourceInsertEventArgs) Handles LinqDataSource1.Inserting
LinqDataSource1.InsertParameters("Company").DefaultValue = Session("Company_new").ToString()
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim company As String = Request.QueryString("Company")
Session("Company_new") = company
End Sub
End Class
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Jan 23, 2010
I have an asp:DetailsView with several columns, e.g. Foo, Bar.
I want to fill it with an anonymous type, i.e.:
gridView.DataSource = new { Foo = 1, Bar = "2" };
gridVeew.DataBind();
But getting next error:
Data source is an invalid type. It
must be either an IListSource,
IEnumerable, or IDataSource.
How can I do what I want?
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Apr 27, 2010
I am going to use DetailsView control for the first time and before using it I thought I would like ask this question. Instead of using the SqlDataSource Object/Class Can i have my class to most of the functionality?In short I donot want to use the in build Sql Data Source control rather would prefer to write my own. Is it possible (I know it must be!) to write the custom SqlDataSource class.
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Aug 5, 2010
I have a scenario in which the user can add a new option to appear in the list of available choices in a DDL contained in a detailsview when they select an option <Add New>. This displays an AJAX model popup which then allows the user to enter the new option text. Then they hit an Insert button which inserts that new option into the DDL's datasource and I call ddl.DataBind. Subsequently I want to close the modal popup and then display the newly created DDL option as selected.
When I step through the code, everything appears to be working as expected...i.e. the DDL's datasource now has 1 more record than before and the ddl.SelectedValue is the newly created record for its datasource. I can also query ddl.items(99) and see the new option is part of the ddl's items collection and the new record is Selected.
HOWEVER, once the screen comes back from the debugger, the DDL is now showing the newly created option, but still the prior selected option of "<Add New>". And if you pull the DDL down the newly created option is not in the list?
I cannot figure out how that happens...though I suspect it has something to do with the AJAX/Update panel. Here's some code:
[Code]....
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Jan 14, 2011
Not sure where I went wrong with this one, but I can't figure it out now... I've got a DetailsView in an UpdatePanel. A dropdownlist controls which person's details are displayed in the DetailsView. I have the DataSource set to an ObjectDataSource, which has select, insert and update methods defined. I also have a method for the ItemCommand, ItemInserting, ItemUpdating and DataBound events of the DetailsView specified.
When I click "New" or "Edit" on the DetailsView I get the open form with either the details for the current person, or a blank form, exactly as I would expect. But when I click the "Update" or "Insert" buttons it does absolutely nothing. I have it running in debug, and have put breakpoints in the ItemCommand, ItemInserting and ItemUpdating methods, right at the top, and it never goes there. The form remains open, and nothing happens. If I click "Cancel", it posts back and goes back to ReadOnly mode.
A couple more minor details that may be important: This page is using a Master page, which is where the ScriptManager is. I'm actually using the ScriptManager from the AjaxControlToolkit. I also have a GridView in this same UpdatePanel, and that has a FileUpload control in it. Because the FileUpload control doesn't work properly without some tweaking, I have to call a RegsiterPostbackTrigger method on page load to link it back to the Master page's scriptmanager. Not sure if that's causing any issues...?
I had this working fine, but then as the page got more complex and I had to change some of the code, at some point it just stopped working and now I can't figure out how to get this working again... I'm happy to post code if necessary, just thought I'd try this first to see if anyone has a quick idea for what to check.
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Oct 25, 2010
I have an objectDataSource to retrieve data and fill a listBox on edit
I created a BLL method to get the data and set the controlId to the detailsVeiw control but the id is not passed throuh to the bll class
this is my code:
[Code]....
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Sep 13, 2010
I had a DetailsView control for editing records in a Access 2003 database. I transfered the database to MS SQL 2008 and using the same code does not work - after clicking edit nothing happens (no error) and the record is not updated.
[Code]....
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