MVC :: Delete Object Is Empty
Oct 12, 2010I have a view that gets populated via this code
[Code]....
Similar Messages:
Web Forms :: Returns Object Reference Not Set To An Instance Of The Object Because Of Empty Dataset
Aug 27, 2010private void FillDetails(string pId, out string Name, out string Address)
[code]....
I have method called Filldetails(),This method uses stored procedure to retrieve information for product name and address based on productid passed from productdetails table.I am working on globalization project.We have this product information for US country but there is no product information for germany country.So dataset is empty for germany.As result I am getting error object reference not set to an instance of the object.
ADO.NET :: Checking For Empty Object - Or No Object At All
Feb 7, 2011I have a simple linq query that queries the database, where QueryString = a value.
[Code]....
My issue is, if the query does NOT return any results, as the the data does not exsist in the table, hence returns 0 rows, it throws up an error which i understand. However, i have tried a few ways to check if the object has been created in the firstplace but to no vail. I have used Isnothing and DBnull but could not get it to work.
Forms Data Controls :: DetailsView Delete Method Passing Null Values To Objectdatasource Underlying Object Delete Method
Apr 12, 2010I am using VS 2008 SP1. My also have included CSS Friendly adapter [URL] in my project ( I mentioned this because my GridView Empty data template is not showing when using GridView's CCS Friendly adapter). I have a GridView and a DetailsView. When a record in GridView is selected its details information is shown in the Details View. Type of Data source I am using is ObjectDataSource. My Insert and Update methods works perfectly. It is only the Delete method that is passing null values to the underlying object delete method. My source codes for both the UI, BLL, DAL is shown below
[Code]....
My Business Object code is below :
[Code]....
My Data Access Layer Code is:
[Code]....
How To Delete Non Empty Directory(it Contain Gallery Images)
Oct 18, 2010i have create directory for gallery and stores images in gallery folder but i am unable to delete directory.
View 1 RepliesSQL Server :: Delete Empty Data In Name And Id Field
Nov 15, 2010I'm trying to delete some data in my database where no data is inside the field name and field id
select freelancer.id, freelancer.name FROM [bewerber].[dbo].[freelancer] WHERE freelancer.id = 'NUll' and freelancer.name = 'NUll' ORDER BY freelancer.vorname
but it seems to be wrong.
MVC :: HttpPost Create Empty Object
Nov 22, 2010I am using a view to create some new categories in the DB but the object the [httpost] create method receives is empty, now this does not always happens. I did double check with other catalogscontrollers and so far the implementation is the same... It only happensds when i try to create a new category the CategoryController
[Code]....
the ViewModel
[Code]....
my create view is strongly typed to ViewModel and has this relevant code create.aspx
[Code]....
and my ascx file is strongly typed to the entity model directly. when the "create" button is pressed and Exception is catched and returns the same view... I have implemented this for other catalogs and works fine except for this one...any clues... by the way i´m using entity model ...
DataSource Controls :: Choose Business Object Empty
Feb 17, 2010I've created my dataset in my App_Code folder. I tested it so it works, But then when I add in my page an ObjectDataSource, it can find any object the list is empty. I looked for online some solution but I didn't find something which worked. It works when I add the code manually, but i would like to understand how come, which part I misunderstood.
[Code]....
WCF / ASMX :: Custom Object Types And Empty WSDL
Dec 28, 2010Using C#, ODP.NET and ASP.NET Web Services:
ClassA is a custom class generated from a "type" in oracle database.
ClassB is a custom class generated from a "table of type ClassA" in Oracle database.
The exposed service includes a login procedure which gets a username as input parameter and returns object B. Debugging the login procedure I can see that the data is retrieved from the database but not printed in the wsdl..
[Code]....
My ClassB definition is as follows:
[XmlInclude(typeof(ClassB))]
public class ClassB : INullable, IOracleCustomType, IXmlSerializable
...
similar definition holds for ClassA as well. the generated wsdl is :
<? xml version="1.0" encoding="utf-8" ?>
<ClassB xmlns="http://tempuri/org" />
and no data printed out. What may be the problem?
Checking For Empty Array - Get Object Refernce Set To Null Error
Oct 19, 2010How do i check for empty array?
If I write
If Not ls_filename.Length = 0 then
....
End If
I get object refernce set to null error
State Management :: Session Object Is Empty Unless It Is Examined In Debug
May 26, 2010I am trying to pass a key value from one page to another, using VB.net and Visual Studio 2008 Professional. I am creating a session variable in one aspx page and trying to retrive the value in the second aspx page (Dircted to by a button with the postbackurl set) However, the session object is empty when I try to access it in the second page. If, however, i put a debug hold on the code which retrieves the variable, and examine the session object from the "locals" debug window, i see contents. When I then resume the application the code retrieves the value correctly. I am executing my code using the development server that comes with Visual Studio. Could it have something to do with that?
First Page:
[Code]....
Second Page:
[Code]....
AJAX :: How To Hide The "edit" And "delete" Links/Object Reference Not Set To An Instance Of An Object
Mar 12, 2010I am using the ajax reorderlist control from the latest Ajax Control toolkit. Based on the logged on user, I need to hide the "edit" and "delete" links. They should be visible to admin, and not visible to others. I used to control this when I was using a gridview just by calling the column and setting it's visible property to false. I have tried using:
ReorderListMinutes.TemplateControl.FindControl("lnkDeleteAgendaItem").Visible =
False
ReorderListMinutes.TemplateControl.FindControl("lnkEdit").Visible =
False
This returns an error of the dreaded "Object reference not set to an instance of an object."
ADO.NET :: Delete Entity Object
Dec 27, 2010I've a problem. I am trying of rid a entity object,wich is a details of other object but when I execute the instruccion get a error. The error say: collection was modified;enumeration operation may not execute. This es el code:
[Code]....
Can't Delete Object - Not Found In ObjectStateManager
Feb 18, 2011I use EF 4 and C#. I have 3 Tables in my DataBase
CmsMasterPages
CmsMasterPagesAdvSlots (Pure Juction Table)
CmsAdvSlots
Here a Picture of my EDM:
I need find out all objects CmsAdvSlot connected with a CmsMasterPage (it is working in my code posted belove), and DELETE the result (CmsAdvSlot) from the DataBase. My Problem is I am not able to DELETE this Objects when I found theme.
Error: The object cannot be deleted because it was not found in the ObjectStateManager.
int findMasterPageId = Convert.ToInt32(uxMasterPagesListSelector.SelectedValue);
CmsMasterPage myMasterPage = context.CmsMasterPages.FirstOrDefault(x => x.MasterPageId == findMasterPageId);
var resultAdvSlots = myMasterPage.CmsAdvSlots;
// It is working until here
foreach (var toDeleteAdv in resultAdvSlots)
{
context.DeleteObject(myMasterPage.CmsAdvSlots.Any()); // ERORR HERE!!
context.SaveChanges();
}
Ms Entity Framework Delete Child Object
Mar 10, 2010i have 2 tables without any cascade deletind. i wont to delete parent object with all child objects. i do like this
//get parent object
return _dataContext.Menu.Include("ChildMenu").Include("ParentMenu").Include("Pictures").FirstOrDefault(m => m.MenuId == id);
//then i loop all child objects
var picList = (List<Picture>)menu.Pictures.ToList();
//foreach (var item in menu.Pictures)
for (int i = 0; i < picList.Count; i++)
{
if (File.Exists(HttpContext.Current.Server.MapPath(picList[i].ImgPath)))
{
File.Delete(HttpContext.Current.Server.MapPath(picList[i].ImgPath));
}
if (File.Exists(HttpContext.Current.Server.MapPath(picList[i].ThumbPath)))
{
File.Delete(HttpContext.Current.Server.MapPath(picList[i].ThumbPath));
}
//**what must i do here?**
//menu.Pictures.Remove(picList[i]);
// DataManager dm = new DataManager();
// dm.Picture.Delete(picList[i].Id);
//menu.Pictures.de
//_dataContext.SaveChanges();
//picList[i] = null;
}
//delete parent object
_dataContext.DeleteObject(_dataContext.Menu.Include("ChildMenu").Include("ParentMenu").Include("Pictures").FirstOrDefault(m => m.MenuId == id););
_dataContext.SaveChanges();
MVC :: Tutorial1 - Object Not Being Passed To Delete Post Method?
Mar 15, 2011Working through the tutorial http://www.asp.net/mvc/tutorials/iteration-1-create-the-application-vbI am unable to delete anything as that method is not passing an object to the Delete POST function.Or more specifically, the object is nothing.Stepping through the GET method I get a bizzare 'There is no code after this point' after Return View(objectToDelete)The LINQ query for the GET method is the same as that for the Edit method but that is working fine.
View 4 RepliesForms Data Controls :: ListView Delete And Object Reference Not Set
Feb 18, 2011I keep getting Object Reference not set to an instance of an object errors when I try to use the ListView delete function. It is a fairly freshly created listview and is very close to the original template so not sure what is going wrong. Some possibly relevant code:
[Code]....
I also put in a breakpoint in the deleting event (only reason I added the deleting event) to look at the status of everything. When I do: Contact delContact = (Contact)e.Entity; and look at the values, the values for almost everything are set to null. It does have the correct value for the ID of the contact object that needs to be deleted. When I continue to step, it jumps to my designer.cs file and appears to break here:
[Code]....
likely because _Case_ID is null. The exact exception I'm encountering is: System.NullReferenceException: Object reference not set to an instance of an object. While I could probably re populate the object with correct values, that doesn't seem likely to address the real cause of the problem.
Forms Data Controls :: Bulk Update/Delete Gridview Without Object/SQLDataSource?
Oct 26, 2010I'm having a gridview in my aspx page with checkbox, User can select one or more than one record(s) at a time and clicks on delete button, Then i'm constructing an object of my DTO and adding all the checked row's Primary Key (DataKeyNames - GUID's in my case) to a serializable class and generating an XML and sending it as parameter to the Stored Procedure.
My Doubt is, can i bulk delete all the rows from database table those are present in my XML document??
If it works, I can do bulk update with XML only, i already did bulk insertion by generating an XML..
My Another Question is, Will it affect the performance? Each time when i construct an DTO object and adding it to the Generic List?
Which one is better, I mean ObjectDataSource or SQLDataSource or my XML method?
[code]....
C# - How To Prevent System.IO.Directory.Delete(pathtodelete, True) From Giving Me A "Directory Is Not Empty" Error
Jan 21, 2011I am writing an online interface that will allow a site owner to modify files and directories on the server.
I have gotten inconsistent performance out of System.IO.Directory.Delete(PathToDelete, true);. Sometimes it works great, sometimes it throws an error. My controller looks like this:
[code]....
Forms Data Controls :: Getting Text As Empty String When Gridview Cell Is Empty?
Feb 19, 2010I have a gridview with two bound fields. On clicking a button i want to display the values in first row of gridview in two textboxes. But if gridview cell is empty i am getting the text in textbox to which the value of cell is given as -' 'i know my problem will be solved if i use the template fields instead. But i want a solution while maintaining the bound fields ,if any.
View 2 RepliesEmpty Field In SQL Database, Using A Datalist Do Not Display The Empty Fields?
Jan 15, 2010I have a sql database that on some field will have a empty string/field. I am using a Datalist to display my results. How do I not make the labels that are empty not display? Currently if the field is empty it will leave a space there which my goal is if the field is empty do not leave a white space instead move the other colunms up.
View 2 RepliesC# - Hide Empty Columns In A Gridview Without Knowing Which Will Be Empty?
Mar 4, 2011I am working with a gridview that pulls data from a SQL database based on selections in dropdown lists. The source table has six columns for attributes of the selection, but depending on what is chosen, there could be anywhere from one to six of those that are empty (all null values). When the column is empty, I would like to have it hidden so the page is less clunky and confusing.
I've searched around for an answer for the past couple days, but what I have found so far is either related to hiding columns that you know are empty which I will not know or removing them in the SQL code which I think doesn't work if the column is called for in the gridview code and doesn't exist in the query.
Empty String - Check If Textbox Empty?
Sep 5, 2010I have this code, how will I write the code so I can check if a textbox i empty? This way want work. Now it goes in if cellPhone != null all the time.
[Code]....
Data Controls :: Display Empty Message When Data List Is Empty When Working With Alphabet Paging
Jun 27, 2012When I click on the Alphabets it will show the details of a player...however, when that particular letters has no details of the player..I want to show."No results can be found"..Is there anyway to do it?
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["CurrentAlphabet"] = "ALL";
this.GenerateAlphabets();
[code]...
Forms Data Controls :: Delete Confirmation Box In Gridview With Edit And Delete Buttons?
Nov 18, 2010How do I reference the delete button to add the delete confirmation box when I have both the Edit and Delete buttons as the last two columns in the Gridview control. The following code works fine without any issues when I have the delete button only:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.DataRow) return;
int lastCellIndex = e.Row.Cells.Count - 1;
Button db = (Button)e.Row.Cells[lastCellIndex].Controls[0];
db.OnClientClick = "if (!window.confirm('Are you sure you want to delete this record?')) return false;";
}
But, when I have both the Edit and the Delete buttons, I get the following error when I click the edit button while the delete button works fine.
Specified argument was out of the range of valid values. Parameter name: index
How do I reference the delete button so the edit button is not affected in this case?