Forms Data Controls :: Number Of DataListItem Objects In The Collection Being Fetched Incorrectly?
Jul 1, 2010
I am binding a datalist to some table 0 of a dataset from the database. When I check the number of rows in the dataset table 0 it's coming as 129 but when I check the count of the datalist items(using Datalist_Name.Items.Count) inside the datalist item created event I am getting a maximum count of 128.Due, to this I am unable to assign values to the last label control(last as in the last row) present inside the datalist dynamically. I am not sure where I am going wrong. I even tried to replicate the same code inside the ItemDataBound event but even then I am getting the same error.
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Dec 30, 2010
I am using ASP.net to retrieve data from a Lotus notes DB using OLEDB connection. I use a ADOrecordset to read the values. When I open the ADo connection, I would like to store each record being read in a custom object and thereby create a collection of custom objects as ADO connection times out when kept open for long.
I then need to iterate throught the collection of custom objects to retrieve the values.
I am using asp.net 2010
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May 7, 2015
I have a Datalist Which is Bind with Database..Datalist Displays Image And their Image Name.. Now i Want Details of Selected Image from Database in Next View (View 2).
Also Want to know which control should i use for click event on Image??ImageButton or <a Href="">?My Code is --
<asp:MultiView ID="MultiView1" runat="server" ActiveViewIndex="0" >
<asp:View ID="View1" runat="server">
<asp:DataList ID="DataList1" runat="server" CellPadding="2" CellSpacing="2"
Font-Bold="False" Font-Italic="False" Font-Overline="False"
Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"
[CODE]
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Feb 7, 2011
i want the following in 1 div. say <div="topdiv">: i want to display on aspx page one image and its description fetched from database. i want to provide a next button at the side of it, onclick of this the next image and descriptn must be displayed without page being refreshed. i have another div (<div="divbottom"> which displays other information..
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Jul 26, 2010
I have a list of objects that I want to bind to a gridview. Creating that list and binding it works fine for most of the public properties in that list.
There are some objects contained in each of those objects... for instance there is an Address object.
object.Address.Line1;
object.Address.Line2;
When I bind this to my gridview, I have no issues with stuff like object.DateRegistered, but how can I access things like object.Address.WhatEverProperty? I always get this error:
"A field or property with the name 'xxx.xxxx' was not found on the selected data source."
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Nov 17, 2010
have some Objects, lets say Employee and Role defined as below and I have defined relationships in my database that gives me a list of objects say employees and thanks to my framework each employee object also has a Role object linked via the RoleIDID, UserName, Password, Email, RoleIDRoleID, RoleNameSo in code I can do something like this
Employee emp = dataService_GetEmployeeByID(1);
string RoleName = emp.Role.RoleName;
Now here is my problemI can bind any object in a repeater and it works fine for the first level in my relationship
For instance <%# Eval("UserName") %>
But I need to be able to show the details for my child objects as well (Role) so something like this (which does not work)
<%# Eval("Role.RoleName") %>
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Apr 6, 2010
I know how to bind a simple objects to a dropdown list. However I am having problems binding my objects which contains sub objects to the control.i.e. with simple object i just do ddl.DataValueField = "myproperty"
with my objects they contains sub objects which i want to bind. I have tried ddl.DataValueField = "sub-object.myproperty" which doesnt work.
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Apr 16, 2010
I'm trying to pass a list of items from a LINQ query to a View, but I'm having trouble figuring out how to resolve a type issue. Here's the error:
The model item passed into the dictionary is of type 'System.Data.Linq.DataQuery`1[Project.Models.Diagnostic]' but this dictionary requires a model item of type 'Project.Models.Diagnostic'.
The issue seems to originate with this code from my Controller:
[Code]....
I tried changing the IQueryable<Diagnostic> to var and got the same error. Also played around with something like:
[Code]....
But then VS2008 says that diagnostics could never be null, and that's may not the best (or even valid) way to do it.
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Sep 14, 2010
I have been trying to design a form, which uses a view model that contains an object array. I want to set up this form so that when the submit button is clicked, all the members of the array are updated. Here is my code:
The class definition of the array element:
[Code]....
The problem is that when I clicked the submit button, none of the luSubject objects in the array Subjects got updated. But if I set up some initial values for the members of the luSubject objects, for instance, set the Name field to be "Maths" in the constructor of luSubject class, then it got displayed on the text box when the form page was loaded. This suggests that this form could display the data in the array, but cannot update it.
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Feb 20, 2011
I want to be able to update a model and all its collections of child objects in the same view. I have been referred to these examples: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx and http://blog.stevensanderson.com/2010/01/28/editing-a-variable-length-list-aspnet-mvc-2-style/ .
For example, I have an object Consultant, that has a collection of "WorkExperiences". All this is in an Entity Framework model. In the view, the simple properties of the Consultant object is no problem, but the collection I cannot get a textbox to show up for. I tried following the examples in the links above, but it doesn't work. The problem is, in those examples the model is just a list (not an object with a child list property). And also, the model again is an EF model. And for some reason that doesn't seem to work as in those examples.
[Code]....
This stuff with the EditorTemplate works fine in Phil Haack's sample project, which I downloaded to try, but here, with the EF model or whatever the problem is, I don't get any textbox at all. The table in the view is just there as a test, because in the table I do get the rows for WorkExperiences, whether I add an empty WorkExperience object or fill out its properties doesn't matter, the rows show up for each object. But again, no textbox...
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Dec 16, 2010
I'm new to linq. here is the scenario i need to write query for.I have a "Candidate" table with a varchar property "Skill"I have the table OR-mapped with LINQ to SQL on dbml file. Now I want to write linq query that:Selects all Candidates that have skill containing any of the keywords from ("asp.net","php","java")
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Feb 12, 2011
I am playing with Asp.net MVC 3, I was wondering how do you acheive a collection rendering in the view when the collection is made of 'real world' objects. Let's say I have a collection of client, each client
may have an address and an adress may have a country.
When I write the following code it crashs if one of the client has a null address (or a null country). Object reference not set to an instance of an object.
[code]...
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Mar 31, 2010
I want to know that how i use the collection class for storing some data and save it letter in the data base.
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Jan 2, 2011
I have a gridview where there is a column of checkboxes for the user to check on for the products he/she wants. After checking, they will have to click on a button. for every checkbox that is checked, the result will be stored in an arraylist. after the button is clicked, the label will show the count of the number of objects in the arraylist, which is the number of items that were checked. However, it appears that objects are not being added to the arraylist. What's the problem? Below is some portion of the code for more understanding.
[Code]....
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Aug 24, 2010
Does the script service means creating a webservice in asp.net?
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Mar 10, 2011
I get this message when i go to update formview.
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Sep 30, 2010
The following code gives error: "When casting from a number, the value must be a number less than infinity."
<asp:TemplateField HeaderText="DATE" SortExpression="date1">
<ItemTemplate>
<asp:Calendar ID="Calendar1" runat="server"
SelectedDate='<%# Bind("date1") %>' VisibleDate='<%# Eval("date1") %>'>
</asp:Calendar>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Date1" runat="server" Text='<%# Bind("date1") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
The error occurs at the line <asp:Calendar ID="Calendar1"...>
It errors because there are records with null value for date1 when the records are returned from the database.
Is there a way to specify in the .aspx file telling it to ignore null or display null/blank?
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Mar 23, 2010
What I'm trying to do is rather basic, but I might have my facts mixed up. I have a details page that has a custom class as it's Model. The custom class uses 2 custom objects with yet another custom object a property of one of the 2. The details page outputs a fair amount of information, but allows the user to post a comment. When the user clicks the post button, the page gets posted to a Details action that looks something like this:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Details(VideoDetailModel vidAndComment) { ....}
[Code]....
The only fields on the form that is posted are CommentText and VideoId. Here is what the VideoDetailModel looks like.
public class VideoDetailModel
{
public VideoDetailModel()
{
[Code]....
I suppose if I added more form fields for the properties I need, they would get posted, but I only need 1 form entry field for the CommentText. If I could get the same Model objects value that were sent to the page to post with the page, it looks like the solution is rather simple. I think using the RenderPartial in the middle of a form is problematic somehow to how the form gets written in html. I can't really put my finger on why things went bonkers, but if I do my RenderPartials before my form and then begin my form with the text entry field and the hidden VideoId, the default ModelBinder works just fine. I was beginning the form, writing the hidden VideoId, rendering several partial views, create my CommentText field, and then closed the form out. The CommentText field would get bound just fine. The hidden VideoId would not. Maybe I missed a rule somewhere about using RenderPartial.
For completeness, the partial view I was rendering took a Comment object and just wrote out it's CommentText data. Several of these objects would exist for a single Video object. All of this data was in a custom type and passed into the View (the main view) as it's Model. This partial view did not have a form and did not have any data entry fields.
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Feb 24, 2010
I'm working on a project in which we have a database, data layer (entity framework), business layer and web/UI layer.I want to use ASP.NET Dynamic Data for the web layer, but don't want it to access the data layer or database, as I want it to be purely running off business logic, and not directly accessing the data.However, it appears that Dynamic Data only allows Linq-to-SQL or entity framework data sources to be used.Has anyone used it with business-layer objects instead?
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Jul 21, 2010
For some reason the following JSON string creates the correct number of records in the custom objects array, but does NOT populate the objects in the array with and values.
[code]....
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May 24, 2010
I am struggling to find out the problem with something. Basically on this page:http://kidsunlimited.co.uk/nursery.aspx?ID=12&Month=April%202010#fragment-11 If you look at the nursery diary tab, will see an article, the first article is named "Test article for archives 1". Now the date should be 01 April 2010, but instead its showing as 04 Jan 2010I don't understand why. I have been looking at my insert statement and when i insert in the admin section i have a AJax date extender. And it populates the text box like so '01/04/2010'But then when i check in my database i notice it has been added as '04/01/2010'.
[code]...
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Mar 9, 2010
I've got a datalist, with some checkboxes in it.But if i press a button, he runs trough the datalist, and checks if there are checkboxes checked.But all checkboxes are null, so there is something wrong, but what?My code:
<asp:DataList ID="DatalistSearch" runat="server" RepeatColumns="1"
onitemcommand="DatalistRelatedProducts_ItemCommand"
onitemdatabound="DatalistRelatedProducts_ItemDataBound">
[code]...
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Aug 10, 2010
I have a web user control with DataList control in it. In my .aspx page, I have a report header, an empty panel as a place holder, a report footer.In my .aspx.vb file, I'll loop through a list of departments. Within each department, I'll load a label to display the department name and the user control for the data, and add both the label and user control to the panel. So there are two variables:
the number of departments and the number of records in a user control.
Now I need to display the current page number and the total page number in the report footer. Is it doable? How? I'm thinking of this approach: declare a page variable count, count the number of department name labels and the number of records in a user control. When the total count reaches a number, such as 20, I'll break the page. This way, I can get the the page current number and the total number of pages. But how to add a page break to an asp.net page?
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May 28, 2012
I am able retrieve the image for imagebutton from db on to gridview and perform some events but I am unable to view the complete image i.e, i am able to see only part of the image
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns = "False" Font-Names = "Arial" Caption = "UsingImageField">
<Columns>
<asp:BoundField DataField = "cProduct_id" HeaderText = "ID" />
<asp:TemplateField >
[Code] .....
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Apr 15, 2013
i want datalist to show only 6-8items ,as these datalist is connected to datasource which has more than 20 items..
like in facebook,we have lots of friends but in friend box only 6 friends is shown and when we click that we go to next page which display all list of friends...
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