C# - How To Build A Self-referencing Model Object For Hierarchical Data In MVC

Sep 9, 2010

I'm trying to understand how to build a self referencing model for hierachical data. Eventually i will be creating a category tree.

I don't anything in tables yet. After I have the structure nailed down then I will create the tables. My existing Object is defined like this:

public class Categories


View 1 Replies

Similar Messages:

C# - Build Hierarchical Html List From Dataset?

Sep 14, 2010

I am getting following output in Dataset

ActivityID ParentActivityID ActivityName AcivityLevel
0 NULL Dashboard 0
1 NULL Market Trends 0
2 1 News 1

and I want to build HTML list as follow.

<li>Market Trends[code]....

View 1 Replies

Forms Data Controls :: Referencing An Object Inside Two Control?

Dec 3, 2010

I have a Data list, inside that i have a repeater, inside the repeater i have a panel.hat i want to do is reference my panel (Panel1) so that i can change the visible properties when a link button is clicked. However as this is inside a dynamic control i am a bit lost in how to reference it! This is my code


View 5 Replies

Programmatic Referencing Of Literals And Object Properties?

Jul 15, 2010

I have advice that this might work for programmatically filling a set of literals from a set of object properties:-


However, the line: ctl.Text = pageData.help(i).trim() fails because it's not understood that pageData.help(i) should translate to pageData.help1, pageData.help2, etc.

View 1 Replies

LinqTOsql Self Referencing Object Mapping Is Not Working?

Sep 9, 2010

I'm trying to create a self referencing object using linqTOsql mapping. So far, I am definitely in over my head. Here's the code I have:

public class Category
[Column(IsPrimaryKey=true, IsDbGenerated=true, AutoSync=AutoSync.OnInsert)]
public Int64 catID { get; set; }
public Int64 parentCatID { get; set; }

View 2 Replies

MVC :: Build Model Around Entity SQL?

Mar 15, 2010

I want to build my Model around Entity SQL. I'm pretty comfortable with writing SQL queries hence my choice for using entity SQL.

In my model i have this:

namespace Model
public class Person
public string Name { get; set; }
public string SecondName { get; set; }
public int Age { get; set; }
public DateTime DOB { get; set; }
public void Save()
//to do
public List<Keyword> GetKeywords()
//get data from entity
DBEntities context = new DBEntities();
string sql = "SELECT * from Keyword";
EntityCommand cmd = new EntityCommand(sql);
return ;

how do I execute entity SQL comment?

how can i return a list that is returned from this query?

if i have different classes that need access to DB would I always have to specify "DBEntities context = new DBEntities();" or is there a better way so that all my classes have this configured?

View 1 Replies

Access Office Word Object Model Through Asp Results - Error 80070005 - COM Object Not Registered

Aug 13, 2010

I have developed a website that allows users to upload office documents then uses the office object model to convert the document to an HTML file that it then displays in an iFrame. I have, of course, included references to Office.interop.word, and the site works fine on my development machine. When I uploaded it to my production server the site functions fine until I try to upload a document. I initially got a similar error that said "COM object not registered". I realized that Word wasn't installed on my production server. So I installed word and now when the server tries to access the word object model I receive the following error:

Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))

I searched the registry for the corresponding CLSID and found a corresponding folder. I added full control to the IUSR_ account and due to the persistence of the error I eventually added full control to "everyone" and ensured these permissions inherited down to the rest of the folder. I then added full control to IUSR_ and again eventually added full control to "everyone" to my microsoft office folder. I don't know what other permissions to grant and where in order to make this "Access is denied" error go away. I must be granting them in the wrong place, because as far as I know I can't be any more permissive than "Everyone" "Full Control".

View 1 Replies

C# - Prevent GridView Saving Data From Build To Build In Visual Studio?

Apr 1, 2011

I have a question regarding a situation that occurs with GridView, ObjectDataSource in ASP .NET application. The GridView is linked to the ObjectDataSource and both are included within an UpdatePanel letting the GridView to fill in an asynchronous way from a form in the same page so it gets more rows as the user enters the data:

<asp:ScriptManager ID="ScriptManager1" runat="server">
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
<asp:BoundField DataField="Name" HeaderText="Name" ReadOnly="True"
SortExpression="Name" />
<asp:BoundField DataField="Periodicty" HeaderText="Periodicty" ReadOnly="True"
SortExpression="Periodicty" />
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
SelectMethod="GetSessionNames" TypeName="Simulation"></asp:ObjectDataSource>
<asp:Label ID="Label27" runat="server" Text="Label"></asp:Label>
<asp:AsyncPostBackTrigger ControlID="NewWebSessionButton" EventName="Click" />

I start the project with Visual Studio 2008, fill the form and it works correctly. Then I stop the execution: rerun again and the data I entered in the previous run is in the GridView. Is like some sort of cache saved the data from the session before. I checked that EnableCaching property is set to false for the ObjectDataSource. If I Rebuild Web Site in Visual Studio (not just Build) then it works corretly leaving the GridView empty. Is this caused just becuase of Visual Studio? Can it be turned off? And will it happen in the final IIS it will run on?

View 1 Replies

How To Build Widget Page Using Jquery, Json Object, And Xml File In .NET

Feb 12, 2010

I am trying to build a page which consists of different user controls which is divided in 3 columns.I have created a custom class for the page and widgets where the user controls will be loaded in. The custom class needs to be stored in an XML file, and using jQuery sortable for drag-and-drop functionality.At this point, my question is what is the best implementation for loading and saving the states of the page and widgets inside the page? I was thinking about using JSON and WebMethod for that, but I am still missing out the architecture on how I should build the page

View 1 Replies

Asp - Editing Hierarchical Data

Aug 13, 2010

I just finished making a change to an ASP.NET Ajax screen from a few years back. It was harder than expected to build and maintain. On this change, I estimated 12 hours and spent 4 days. Granted I also did extensive refactoring to simplify the code. This is actually some pretty fun code, but I wonder if there was a better route for the original implementation than the one I took. To start, here's a screenshot:

The Problem So obviously this is an editable tree of data. The data behaves very differently at each level -- very different sorting/collision rules and so on. My solution is actually performant and provides an adequate user experience, but it's nearly 2,000 lines of code spanning 11 classes, which is more than I envisioned going in. I'm curious if you've solved similiar problems and if you were able to find a simpler solution. It looks pretty straightforward at a glance, maybe that means I did something right. But there is some real complexity here -- obviously you can add and remove items at three different levels, and everything sorts similiar to a netflix queue, but with quirks. It also has to detect collisions on the various entities (in the image, if you changed day 5 to day 1, it would have to figure out which one is actually day one and move the other one).

The biggest problem was keeping track of the state, since users don't want to commit changes to the database as they work. I thought it might be possible to use the actual controls (nested repeaters in this case) to represent this interim state, but that ended up being a dead end due to complexities related to the underlying data. The Solution To solve this, I created a full blown XML representation of all the data, which was actually great in some ways since I was able to use LINQ to do a lot of heavy lifting around sorting and querying. Still, there is a lot of code in here related to syncing up the xml to the html and so on, and I had to make a pretty hefty abstraction on top of the xml to make it easy for me to work with it in code. In case you're interested, I am currently persisting the XML to session state so that it will survive across callbacks, but eventually that should go into the database.

One colleague told me it would be better to use Flex or maybe Silveright for something like this, and I think that might be true since those are both much more stateful, although Silverlight was not ready for prime time back when this started, and I don't know Flex. Maybe using a temp table instead of xml would have been superior in some way. I'm looking to learn and improve -- what have your experiences been with this type of problem?

View 1 Replies

Trying To Use The Sharepoint Object Model From Page?

Jan 7, 2011

I am having an issue with something that seems like it should be simple. I am just trying to use the sharepoint object model from an ASP.net page. It's running on Framework 3.5 (required by sharepoint), and I realize it needs to be set to build on x64 (also required by sharepoint from what I understand). The issue is when I do this it returns "Could not load file or assemply ". If I switch it to any CPU then it reports that the call to build SPSite can't find the site address.

Basically if I open a brand new web app project and switch it to framework 3.5 and build target x64 it will report this same error. It seems like I am doing something stupid but I have no idea what it could be.

View 2 Replies

Getting The Value Of FailedPasswordAttemptCount From The Object Model Not Database

Feb 22, 2011

I am trying to get the FailedPasswordAttemptCount from the ASP.NET built in objects and I am not able to find one, is there any way I can get this value without creating a new storedProc?

View 1 Replies

C# - Best Method To Search Hierarchical Data?

Mar 15, 2010

I'm looking at building a facility which allows querying for data with hierarchical filtering. I have a few ideas how I'm going to go about it but was wondering if there are any recommendations or suggestions that might be more efficient.

As an example imagine that a user is searching for a job. The job areas would be as follows.

1: Scotland
2: --- West Central
3: ------ Glasgow
4: ------ Etc
5: --- North East
6: ------ Ayrshire
7: ------ Etc

A user can search specific (i.e. Glasgow) or in a larger area (i.e. Scotland).

The two approaches I am considering are:

keep a note of children in the database for each record (i.e. cat 1 would have 2, 3, 4 in its children field) and query against that record with a SELECT * FROM Jobs WHERE Category IN Areas.childrenField.
Use a recursive function to find all results who have a relation to the selected area.

The problems I see from both are:

Holding this data in the db will mean having to keep track of all changes to structure.
Recursion is slow and inefficent.

I'm using C# ASP.NET with MSSQL 2005 DB.

View 5 Replies

C# - Three Level Hierarchical Data-linq?

May 7, 2010

I have three level hierarchical data. using the statement below i managed to display two level data. I need to extend it to one more level.

Current hierachy is Modules-->Documents

I need to extend it as Packages-->Modules-->Documents

var data = (from m in DataContext.SysModules join d in DataContext.SysDocuments on m.ModuleID equals d.ModuleID into tempDocs from SysDocument in tempDocs.DefaultIfEmpty()
group SysDocument by m).ToList();

View 2 Replies

.net - Show Hierarchical Data In A Dropdownlist?

Mar 21, 2010

I have a table in SQL Server 2005.

I want to show all domain name in a dropdownlist maintaing the same hierarchy. i.e


I need to append '--' according to the domain level. Is it possible using a sql query. or alternatively can I have any other control to show this data.

View 3 Replies

MVC :: Parsing Model Error - Object Does Not Have Property Name?

Sep 18, 2010





But error raised "object does not have property Name". Why?

View 4 Replies

C# - Get List<Model> Object In HTTP POST?

Dec 29, 2010

I have two model classes:

public class UserModel
public Guid Id { get; set; }
public string EmailAddress { get; set; }
public string LoginName { get; set; }
public string Password { get; set; }
public class GroupModel
public Guid Id { get; set; }
public string Name { get; set; }
public List<UserModel> Users { get; set; }

I created a View (Create.Aspx) by inheriting GroupModel class.

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<MyApp.Models.GroupModel>" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<% using (Html.BeginForm()) {%>
<%: Html.ValidationSummary(true) %>
<div class="editor-label">
<%: Html.LabelFor(model => model.Id) %>
<div class="editor-field">
<%: Html.TextBoxFor(model => model.Id) %>
<%: Html.ValidationMessageFor(model => model.Id) %>
<div class="editor-label">
<%: Html.LabelFor(model => model.Name) %>
<div class="editor-field">
<%: Html.TextBoxFor(model => model.Name) %>
<%: Html.ValidationMessageFor(model => model.Name) %>
<input type="submit" value="Create" />
<% } %>
<%: Html.ActionLink("Back to List", "Index") %>

It is generating only two fields (Id, Name) in my aspx view. Also I am able to get the form data in the Model class object in ё[HttpPost]ё request which contains the data for ID and NAME field in controller.

public ActionResult Create(GroupModel groupModel)
// TODO: Add insert logic here
return RedirectToAction("Index");
return View();

How can I get the data in List<UserModel> object? I am thinking to Put a List control with checkboxes containing Users. Then catch them using FormCollection object in controller.

View 1 Replies

MVC :: Action Method Taking Model Object?

Nov 25, 2010

I've an action method like the below:

public void Edit(Movie movie)

Movie has fields Id, Name. View is displaying name only in textbox. When button is clicked, the above action method's movie is populates with the updated name value but Id is 0, actually that record's id is 4. Thatswhy my updating of record is not working. Why MVC is putting 0 into id?

View 9 Replies

Web Forms :: How To Display Hierarchical Data In Checkboxlist

Jan 19, 2010

how to display hierarchical data in checkboxlist

View 6 Replies

C# - IHierarchicalEnumerable The Prefered Way Of Dealing With Hierarchical Data?

Dec 14, 2010

I'm building an asp.net mvc app, I want to build up an hierarchical structure, is IHierarchicalEnumerable and IHierarchyData the best way to implement a hierarchical structure?

View 1 Replies

Jquery - Web Application Accessing SharePoint Object Model?

Sep 21, 2010

I have an asp.net 2.0 web application that will run on the same web servers as SharePoint Server 2007. The application should run in its own App Pool (IIS 6.0). The Web Application needs to call the SharePoint Object model API.

Is there a resource that explains the required configuration / security settings and other considerations? It is possible that I need to make some settings in SharePoint Admin Console itself; aswell as config files. Script files might need to be located in a specific location in order to be accessible. Assemblies may need to be signed.

I can only get partial success running my Web application. But only if it is deployed to a Virtual Directory that resides under the SharePoint Website (in IIS & File system). Even with this setup, I JQuery / Javascript throw errors when accessed (object null); and also images not loading.

I have made some changes to the Web applicaton web.config file which have allowed me to run the application albeit the above mentioned issues with scripts and images (Virtual directory properties also set to allow scripts and executables to run). Ajax functionality appears to work OK.

View 1 Replies

C# - MVC 2.0 - Using Partial Classing Or Inheritance On Database / Object Model?

May 4, 2010

I ask this because i'm using Partial classing to extend my db model, and in doing so some snags i've run into using inheritance and also snags i've run into declaring my db model in another class as a property and just using it like that ie: Public Property DBModelClass as DBModelClassType - however, doign direct partial classing has worked out the best, with no snags... except for an issue i seem to be running into now.

that is, i create new properties with half-page code in the 'Get' part of the property decleration, these are like virtual/new properties that the db or db model isn't supposed to know anything about, the sort of stuff you generate/use but without saving it in your db, as i'm sure all of you have these. every time i submit my DBModel through an action, somehow, one of these properties 'Get' section is running (being called) even though i'venever asked for it to. of course, because it aint ready to run (it shouldn't) errors like null errors get returned (however, they wouldn't error if it were to run only when i asked for it to).


so this second part of my question, are all properties in a model generated from a db (linq to sql) ran or called by the model state automatically? without being asked to do so?

an aside:

(i do do a modelstate.isvalid - however, this running occurs before isvalid is called as it errors out before i even see validation information). that being, is the auto calling of all properties on a db model object even when not used normal? i tried using bind(false) and scaffold off on the problemed properties. and the first part of my question, just as a reminder, is if i should or should not be using partial classing as a substitute to inheritance when extending db model's?

View 1 Replies

ADO.NET :: String Array In Model Object - Store In Database?

Feb 6, 2011

I been working on a simple site today and when I found myself surprised about this. I got a object model that gone have like a lot of emails to it so I thought Ill do a string array to keep them, then I paused and tried to figure how do I save that to a database and how do I work with this? I always found myself working with collections of objects instead. So I'm kinda embaries to say this but how do I work with this? can I save a array to database


View 3 Replies

Mvc 3 And Vs2010 With Error CS1061: 'object' Does Not Contain A Definition For Model?

Mar 5, 2011

My code all worked under mvc 2 with vs2008. It didn't work when I converted it to mvc 3 and vs2010. Here is one of errors: Compiler Error Message: CS1061: 'object' does not contain a definition for 'LabelText' and no extension method 'LabelText' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)

Source Error: [Code]....

Language="C#" [code]....

View 4 Replies

Forms Data Controls :: Hierarchical Data Display And Hopefully Update?

Mar 29, 2010

When a user updates a record via detailsview in table 1 (TA), I need to display child records which are in table 2 (SG) and their child records which are in table 3 (SC). I tried to use DataList inside another DataList but I cannot filter the table 3 records based on returned values of table 2. I am also using TableAdapters and added a relation for table 3 to table 2 via both primary keys of table 2. I selected to create Both Relation and Foreign Key Constraint and Cascade as Accep/Reject Rule.

For my select statement on table 2, I filter it via WHERE (SGPrimaryKeyCd = :SGPrimaryKeyCd) AND (SGPrimaryKeyDate = :SGPrimaryKeyDate) and return the correct records based on values entered by the user.

For my select statement on table 3, I tried using a WHERE clause but didn't work. Without a Where clause I get all the records, of course. I thought relation would take care of filtering.


View 2 Replies

Copyrights 2005-15 www.BigResource.com, All rights reserved