MVC :: Model Binding Values In HTML Table Back To Controller

Aug 25, 2010

Currently, I am working with ASP.NET MVC1 and am still learning about Model Binding and how values from a View are passed back to the Controller / Model. Specifically, I want take an existing Model, create a Table and populate the Rows of the Table, allow the user to edit some fields and pass it back. In my example, I have a Class called "Ingredient" which has 4 public accessories: Name, Barcode, Amount, and Unit.
[Code]....

Or is this not possible? (Basically, I'm trying to re-create a datagrid where certain fields are editable and certain are not...)

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I've been going at this for several hours and I simply cannot find the solution.

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[code]...

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[Code]....

and the script:

[Code]....

and here's the controller code:

[Code]....

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function setData(associateValue, reviewDateValue) {
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I am newbie to asp.net I have a html table with 3 fields,

Scheme Name : Sample Scheme

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1 2/1/2009 26

2 2/5/2010 22

3 2/1/2010 23


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Should I use Session? TempData?

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like

[code]....

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Global.asax route values
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C# - Accessing The DOM To Obtain Values From A HTML Table Server-Side

Jan 10, 2011

I created a aesthetic control that creates two lists in seperate div tags organized with a table for each. The control always the user to click on the img tag associated with each item to move it between the two lists. I am doing all the movement between the lists via javascript and want to have a good method for obtaining the values and storing them in two lists upon Postback. I thought of doing something like storing the indexes/classes in hidden values and them reading them to find the items but that seems messy. Also, thought there might be a clever way of traversing the DOM via FindControl() but not sure. Any input would be great.

One other thing is that this is not a composite control. All the tags are being rendered in the RenderContents() method. So I don't know if there is a way to even tack on a runat="server" attribute to an elem like I normally would if I wanted code behind access to an html element.

Here is the HTML that is generated. I don't think there is need to post the server side code since it does nothing more than generate the html at this point.

<div class="DualListPanel" id="test1">
<div key="test1_Unassigned">
<table class="DLPTable">
<tr>
<td>Item 1</td>
<td><img src="..." onclick="Move(this)" /></td>
</tr>
<tr>
<td>Item 2</td>
<td><img src="..." onclick="Move(this)" /></td>
</tr>
</table>
</div>
<div key="test1_Assigned">
<table class="DLPTable">
</table
</div>
</div>

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Not so strange is that the Button doesn't work since it sends post back to the server - reloading the UpdatePanel. I think I should use a different controller like the CheckBox and style it hard using CSS (which isn't a problem). Is this the correct way to go, or should I make use of JavaScript AJAX instead?

Note to self: This technique shouldn't be used in a public application since it put too much unwanted pressure on the web server.

[code]...

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MVC :: Model State Doesn't Contain Model Values

Aug 2, 2010

when I use Html.HiddenFor( model => model.OwnerId ) to create a hidden field, the value assigned to that field is zero. When I use <input type="hidden" value="<%: Model.OwnerId %>" /> to add the hidden field to the form, the value is assigned correctly.

Why would Html.HiddenFor( model => model.OwnerId ) not get the correct value from the Model object? Am I supposed to load model state somehow separate from returning the model object from the action method? Here is the view:

[Code]....

The Create action method is relatively straight forward.

public ActionResult Create( ... )
{
ViewStockItem item = new ViewStockItem();
item.ActionCode = ActionCode.Add;
if (item.OwnerId == 0)
item.OwnerId = 7;
BookOwner owner = db.BookOwners.Single(c => c.OwnerId == item.OwnerId);
item.OwnerName = owner.OwnerName;
return View(item);
}

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MVC :: Set Model For Controller?

Jan 20, 2010

How to set the model for the particular controller from another controller ?

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MVC :: Login Model And Controller?

Dec 27, 2010

i have vreater a class model for login

public class LogOnModel
{
[Required(ErrorMessage="*")]
public string username { get; set; }
[Required(ErrorMessage = "*")]
[DataType(DataType.Password)]
public string password { get; set; }
public bool rememberme { get; set; }
}

and created a view from controller

public ActionResult LogOn()
{
return View();
}
[HttpPost]
public ActionResult LogOn(string Username, string Password, bool RememberMe)
{
if (!string.IsNullOrEmpty(Username) && !string.IsNullOrEmpty(Password))
return RedirectToAction("Index", "Home");
else
return View();
}
my view
<% using (Html.BeginForm())
{ %>
<div>
<label>username</label>
<%: Html.TextBoxFor(m=>m.username) %>
</div>
<div>
<label>password</label>
<%: Html.TextBoxFor(m=>m.password) %>
</div>
<div>
<label>Beni Hatırla</label>
<%: Html.CheckBoxFor(m=>m.rememberme) %>
</div>
<div>
<label></label>
<input type="submit" id="button" value="Login" />
</div>
<div id="LoginError">
<%: Html.ValidationMessageFor(m => m.username)%>
<%: Html.ValidationMessageFor(m => m.password) %>
</div>
<%} %>

but password textbox type does not include password charecters as(***). and not Html.ValidationMessage for empty textboxes.

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MVC :: Save Changes To A Model In A Controller?

Apr 22, 2010

i need to implement edit functionality for my model. among other fields my model contains record id in the database. when my controller is called i need to update the database record with the same id as the model using the fields in the model.

here is my controller:

[HttpPost]
public ActionResult Edit(MyModel m)
{
var r = my_datacontext.MyTable.SelectSingleOrDefault(x => x.id == m.id);
if (r != null)
{
r = m;
my_datacontext.SubmitChanges();
}
}

this does not work because m does not get added to the datacontext's ChangeSet. why? i fixed this by changing the signature of my controller action to receive FormCollection instead of the model, and by invoking UpdateModel manually. i think this is not the right way to do it.

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