ModelBinding Complex Objects In .net
Feb 8, 2011
I have a custom modelbinder built to handle my accountRequest class.This class consists of some boolean values and a UserViewModel.The UserView Model is made up of strings such as Firstname, Last Name, Address.Originally I was just passing the UserViewModel as the action parameter but I now I need to package UserViewModel inside of accountRequest.however, now my modelbinder will not map the strings in the httpContext.Request to my UserViewModel inside of AccountRequest. All of the booleans map just fine.Is there an easy way to get his data to map to the UserViewModel properties other than hardcoding it? [code]
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Jul 9, 2009
I used the tool about 3 years ago to create the classes for a webservice client to send or recieve arrays as complex data. Now i have to update these classes, since there are additional informations, that have to be exchanged. When i use the tool now with the new wsdl-files, it does'nt create the classes for complex data (structur, IGCTMObjectFactory), but only one class for simple data. In addition i have to establish a new client, that sends an array of complex data and receives another array of complex data. I tried to build the classes manually combining the client that sends an array with the client, that receives an array, but I failed.
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Jul 9, 2011
How do I make the default modelbinding handle Lists?
Let's say I have a ShoppingCart class, which has a ShoppingCartItem List:
Public Class ShoppingCart
Public Property CouponCode As String
Public Property Items As New List(Of ShoppingCartItem)
End Class
[Code]....
However, when I submit the page, no values are picked up, not even the CouponCode field. The model object is empty. What gives?
Ultimately, my goal is to add/remove items clientside via javascript and then have the modelbinder pick up the changes automatically when the page is submitted.
Update: I was just missing the Property keyword from my model properties declarations. It's too late, and I got to get some sleep. :)
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Jan 20, 2012
I'm getting an intellisenxe error saying that the statement below is expecting a ')' and is positioning the correction ater the parenthesis following "Approved". I'm not familiar with this IF syntax and I can't seem to make the correction; trial and error isn't working ;o)) If (reader.Item("Approved"), True, False) = 0), (reader.Item("DoNotDisplay"), False, False) = 0)) Then
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Dec 5, 2011
make objects from the ToolBox using code instead of changing existing objects invisible then visible later?
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Jun 23, 2012
I am getting this error, Not sure why it is happening "Error The SqlParameterCollection only accepts non-null SqlParameter type objects, not Int32 objects."I have tried with all sorts of possibilties, now try to enter default data as dummy data,
Using connection As New SqlConnection
connection.ConnectionString = ConfigurationManager.ConnectionStrings("DentalDeviceConnectionString").ConnectionString
connection.Open()[code].....
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Jan 29, 2011
I have a program like this.
Module Module1
Public Class Mstr
Public Property Prop1 As String
Public Property Prop2 As String[code]....
But it is not working as I expect it to. You can see it from.The DtlsB properties of all three DtlsA objects are having values from last iteration.
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Jan 6, 2011
I want to let the user input objects to a richtextbox 1 object on each line, and somehow use Random.Next to select pseudorandomly a few objects, the number 'few' inputted in a textbox.
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Jan 18, 2012
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using conn As New SqlConnection("Database=Clinic_Management_System;Data Source=.SQLExpress;Integrated Security=True;AttachDBFilename=|DataDirectory|Clinic Management System.mdf")
Dim cmdRecord As SqlCommand
[code]....
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Feb 7, 2010
I have a user control that inherits the FW ListView and I need to dispose of two objects when the form's disposing of it's objects. Here's what I've concluded already, am I on the right track?
[Code]...
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Jun 10, 2010
I am having a problem setting up my combo box to pull its menu from a SQL Server table and store to the main data table.Currently my drop down list displays correctly but saves 'System.Data.DataRowView' to the data table. My main data table is called 'Survey' with staffname as a column, then I have another menu table of staff member names which populates the drop down menu.I found that when I remove the DataSource and populate the Items collection instead the combo box saves the correct value as expected but when I use the datasource it saves the words ''System.Data.DataRowView',[code]
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Sep 9, 2010
I have combox1 and i want to dispaly Foure Columns in combox1 and I make this
Dim dr As SqlDataReader = SqlHelper.ExecuteReader(conn, CommandType.Text, "select FirstName,FatherName,GrandFatherName,FamilyName from dbo.PersonalData")
Dim dr As SqlDataReader = SqlHelper.ExecuteReader(conn, CommandType.StoredProcedure, "GetSpecialFieldOFPersonalData")
Do While dr.Read
Me.ComboBox1.Items.Add(dr(0) & " - " & dr(1) & " - " & dr(2) & " - " & dr(3))
Loop
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Apr 18, 2011
How do I use complex numbers in Visual Studio 2008 and in Visual Basic, dont tell me I spent all this money on VS2008 Pro only to find out that it cant handle complex number arithmetic!
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May 17, 2012
In my spare time i give myself programming stuff to do. Today i want to write a function that goes through a string, if the string contains any numeric value the function must return false, if the string has any special characters it must also return false else return true. For example the following strings would return as follows:
String Return Value
Travis True
78* False
[code].....
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Sep 15, 2009
I am currently working on a project, which purpose is to call a webservice through a VB script. VB is by far not my first language and I simply reach the point where I do not know how to go on from here.
I have a Webservice descriped in a WSDL document that defines a service that takes a complex type as parameter and returns such one as answer.
The complex type is basically just a string that is wrapped inside a class object. So what i did was to create a new class module and added a public variable to it. I created a new instance of this class, gave it for the purpose of testing a value and tried to call the webservice. Everything goes well untill i reach the call to the webservice, where the program throws an exception that says:
"Class does not support automation or does not support expected interface"
My first thought was that the initialization of the object might have gone wrong but i am quite able to set and get the values on it. So i have to assume that the object is okay. I know that the url to the WSDL document is correct, due to the fact that I can call the document via the browser and it will throw an exception of "wrong type" when i feed the soap method with a primitive.
With out luck I browsed several pages on the net to find a clue what this could. So now i wanted to give this forum a shot.
You should know that i am not able to alter the WSDL file. I have to go with the way it is. In addition am supposed to stick to VB 6.0.
I used a Form in VB to make the call to the webservice.
Here is the call procedure:
Private Sub Command1_Click()
On Error GoTo ErrorHandler
Dim tS
[Code]....
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Mar 26, 2010
I'm trying to save some settings in a complex object. If I make a dll of the class I can then add it in the projects properties settings list as that type.When the program runs though it won't show up as anything other than nothing. I read you have to have a sub new empty constructor which I have but don't know why else this would fail.First question is how to you do this. Second is there anyway to use a class inside the project as the target of the settings type or do you have to bring a in an external dll to do this every time? [code]
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Jul 29, 2009
I suppose this is more of an opinion question, but, when you start a big project, what do you think about before you even start Visual Studio? Do you setup structure and files before actually coding them, or do you code them one-by-one?
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Nov 16, 2010
I have a product table which has around 90 columns in. Must of the columns are integers. When I search for an existing product and insert it into a row its fine but when I alter one of the columns and do an update using the command builder I get 'Expression Too Complex'. Does anyone know why this is happening and how to fix it?
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Oct 3, 2011
Im making a herbal database program and I am having troubles setting up HierarchicalDataTemplates for my main data class.
[Code]...
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Feb 9, 2012
I would like to know if there is any simple/fast way to create a complex XML file, when I say complex, I mean more than 20 elements encapsulated. Although this is VB.net,unfortunately literals will not work in this case
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Apr 1, 2009
I have an XML File that I am processing using LINQ. I want to basically serialize the XML data into custom objects but don't know how.
[Code]...
How can I finish the above LINQ query to populate the Children property of the Group object?
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Feb 26, 2012
Imagine you want to draw a regular shape such as a triangle, rectangle ... all the way up to say a 10 sided figure ( a decagon ) or more. I know that when we try lots of sides it looks closer and closer to a circle or an ellipse. The problem I am thinking of is placing smaller circles ( or ellipses ) at the correct positions near the points of that shape as shown for a triangle below.Here comes the question(s) How could we: a) Correctly place the circles ( or ellipses ) at the points so that the sides are at a tangent to them andb) Can we combine the REGIONs of these to produce a figure with rounded points so the light blue bits get excluded? I guess that to produce a method to deal with all the mathematics involved would be quite a complex task.Has anyway previously tackled doing this or know of any .Net tools I could use for this problem?
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Jun 16, 2010
I am currently trying to find a way to accurately print a complex form that I created in VB6.
I stumbled upon a company that has a very impressive package called Winform Reports.
[URL]
Currently it is only supported in .NET.
Does anything like this exist for VB6?
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Aug 15, 2011
I wanna search items like MS windows search for example if i wanna search mp4 files i should write "*.mp4" its enough my searching but if i ll use filter function i cant do this on datagridview couse when i want to search something i need to know full name of this record... its to bad for me... is there any way? can i do it?
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Mar 17, 2011
I have a control that looks similar to the following:
I need to add slightly round ends where all that extra end space is. I'm not sure how to add these. It should look similar to the round ends on this page.
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Jul 28, 2011
Want to dump a fetched table to a excel sheet. [code] I am new to data fetching and ADO.Net concepts and just got it working.But. This seems to be very inefficient and lame to me. So, can you help reducing the complexity and may be improve performance ? A totally different (Better) implementation is most welcome !
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Nov 2, 2011
I have been reading the various blog posts on how to deal with a Complex Type. However I don't really get it. I am using EF code first development, MVC and VB. From what I have read so far to render a editor field for a complex types requires a custom object, right? However I don't really understand what code I need to put into the custom template. What code needs to go into custom template so I can render a textbox for the PostTags icollection?
My classes:
Public Class Post
Inherits EntityBase
<Key()> Property PostId As Integer
<DisplayName("Title")> <Required()> Property PostTitle As String
<UIHint("MultilineText")> <DisplayName("Text")> Property PostText As String
Code] .....
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Jan 25, 2012
Is there a VB equivalent to PHP's print_r available? I have a very large and complex hashtable that I would like printed out.
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Mar 11, 2010
My problem is I want to be able to read through this xml document and populate a winform before validating it and then storing it into a table.[code]...
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Feb 27, 2009
So i run a loop that is an iteration for array variables. for i = 1 to 1000summation = summation + array(i)next iyet for every iteration, array(i) contains a different set elements, and I need to know the sum of these elements for every iteration step.For some reason VB saves the values from previous iteration(s) and adds them to the new.The question is: how do I sum a new set of array elements for every iteration without using the older values.? Can I: dim array(number of elements as a function of something) ?
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