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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Similar Messages:
Jul 25, 2010
I have a /Register [GET] Action in the controller that pre-poluates a view-model with a string and an integer and returns: return View(myModel);I can see the string being populated in the textarea and the id being populated in a hidden input. Yet when the form gets POSTed, the string value is null and the int value is 0. I verified that both values are posted to the server but the model received in the POST action is missing those values.
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May 11, 2010
I have an editable table in my view.
how can i accept the whole table in a controller action method?
what parameter should i gave to accept the whole table
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Oct 6, 2010
I've been going at this for several hours and I simply cannot find the solution.
I want to get some data from my user. So first, I use a controller to create a view which receives a Model:
[code]...
The rest of this controller does not matter since no matter what I do, the count attribute of Request.Files (or Request.Files.Keys) remains 0. I simply can't find a way to pass the files from the form (the Model passes just fine).
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Jan 31, 2011
I'm having trouble connecting to my model to my existing database using Entity Framework . Here is the code I'm working with:
[Code]....
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Mar 17, 2011
may I ask one seemingly simple question - I have a Javascript function that loops through my checkboxes(they're plain HTML checkboxes, not using the helper methods), and for every checked one it's adding its value to an array. So now, how do I get this array in my controller so that I can assign its values to the fields, i.e. object's properties?
This is my checkbox code:
[Code]....
and the script:
[Code]....
and here's the controller code:
[Code]....
Now, this langID should be assigned every checked checkbox's value, so I guess I'm missing a loop here too, it should go until some border that's gotten from the client script or something, but my bigger problem is how to retrieve the posted values from the javascript, something like PHP's POST["array"]...?
This Request.Form works fine when just one checkbox is checked, but now I need it to work with several checked..
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Jul 20, 2010
I think I need to drop in some escape characters, but I'm not quite sure where. Here is the javascript function I'm attempting to call:
function setData(associateValue, reviewDateValue) {
var associate = document.getElementById("Associate");
var reviewDate = document.getElementById("ReviewDate");
associate.value = associateValue;
reviewDate.value = reviewDateValue;
}
Here is the asp .net mvc line where I'm attempting to create a Radio button with a click event that calls the above function and passes data from the model as javascript parameter values.
<%= Html.RadioButton("Selected", item.Selected, new { onClick="setData('<%=item.Associate%>','<%=item.ReviewDate%>' )" } )%>
The above throws a bunch of compile issues and doesn't work. A call such as the following does call the javascript, but doesn't get the data from the model.
<%= Html.RadioButton("Selected", item.Selected, new { onClick="setData('item.Associate','item.ReviewDate' )" } )%>
<%= Html.RadioButton("Selected", item.Selected, new { onClick="setData('item.Associate','item.ReviewDate' )" } )%>
<% String functionCall = String.Format("setData('{0}','{1}')", Html.Encode(item.Associate), Html.Encode(item.ReviewDate )) ; %>
<%= Html.RadioButton("Selected", item.Selected, new { onClick=functionCall } )%>
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Dec 15, 2010
I have a HTML table (grid). I want to pass the html table data to controller.(mvc 2.0)
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Jun 28, 2010
I would like to store some business flags (like: isFavorite, isOnLive etc.) per an html table row that won't be visible to user.
In practice, I have a simple ADO.Net DataTable on my code-behind which is used as a data-source for a asp.Net GridView control.
This table contains some business flags on its 0th, 1st, 2nd columns.
I need to store those columns on the rendered HTML of the grid-view -so that I can reach them via JavaScript- but I do not want them to be visible.
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Mar 26, 2010
I wanted to know whether this is possible or not. I have a page with a div. I populate div at run time with a HTML table I wanted to access that table to get the data back.
I am trying with ParseControl() method... Not success Yet.
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Aug 16, 2010
I have a simple model where a Person has Gifts. I have a view which is a list of Gifts belonging to one Person.
My problem is with the Create action for a new Gift. I want it to default to the PersonID that we are already viewing the list of Gifts for. I tried simply passing the last PersonID (they are all the same)
Html.ActionLink("Create New", "Create", new { id = Model.Last().PersonID }) which works fine if there is already at least one Gift for that person but if this is the first Gift I don't have a value.
My Gift List controller knows the PersonID I want to pass but the view doesn't.
How do I pass this PersonID from my Gift List controller to my Gift Create controller via the Gift List view? Or is there a better way to do this?
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Sep 16, 2010
I have a post-only action that has a different route. In my form, I need to post to it, but also keep the querystring values I currently have.
Initial response: /my/first/path/?val1=hello
Needs to post to: /my/other/path/?val1=hello
It seems when I specify a route, it of course only returns the route and doesn't append the querystring values of my original page (for obvious reasons).Is it possible to cleanly append querystring values to my the action attribute of the form tag?
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Jun 28, 2010
I need to process surveys. I have modelled them in SQLServer, just need to generate the forms to input it.I have nested SqlDataSource/DataLists. The outer gets the questions and the inner gets the various options as a plain HTML radio buttons. I can't use ASP.NET radio buttons because of a bug with them inside itemtemplates not mutually exclusive http://support.microsoft.com/default.aspx?scid=kb;en-us;316495Anyway, so now I need to know the which radio buttons were selected so I can insert the values in the database. What is the best way of doing it?
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Jun 29, 2010
I want to dynamically bind dataset values into datagrid's header datafield.
Is it possible? To be more clear, when you click on datagrid's (Collection) from properties window, you get selected columns created from Bound column. So in those columns I want to dynamically display dataset's table values in those columns.
i.e like ds.Tables[0].Rows[0][0].
Is it possible to do it in Datagrid ItemDataBound function like,
e.Item.Cells[1].Text = ds.Tables[0].Rows[0][0]
or something like this? I know the above code is wrong and wont work since I tried it out and while building it throwed error saying, Cannot implicitly convert type 'object' to 'string'.
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Apr 4, 2010
I am newbie to asp.net I have a html table with 3 fields,
Scheme Name : Sample Scheme
sl_no dividend date dividend %
1 2/1/2009 26
2 2/5/2010 22
3 2/1/2010 23
The associated db table dividend_master should get updated like this:
sch_name dividend_no dividend_date dividend_per
Sample Scheme 1 2/1/2009 26
Sample Scheme 2 2/5/2010 22
Sample Scheme 3 2/1/2010 23
how do i achieve this using arraylist? thx in advance sankari
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May 30, 2010
I have a filter on my MVC web site. I display some records in a few different controller actions but when moving from one action to another I want to apply those filter values.
How can I persist values from controller to controller?
Should I use Session? TempData?
I am using Structure Map for IOC.
Maybe I could have a class that contains a Property for each Session Value that I use in my application and inject it on the controllers that need session?
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Oct 5, 2010
i have multiple tables .
I have created one stored procedure where I am selecting the table values.
like
[code]....
I am using LINQ to retrieve the Data. So Using Linq I am calling the stored procedure.
So I ll get the table values in the C# Code the table values.
so in my UI i have 4 gridviews.
I want split the output values into four source and bind it to the grid.
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Feb 1, 2011
Global.asax route values
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional, filterDate = DateTime.Now.AddDays(-1), filterLevel = "INFO" } // Parameter defaults
);
Here's my actionlink
@Html.ActionLink(item.MachineName, "Machine", new { id = item.MachineName, filterLevel = "hello" }, null)
When the filterlevel is specified in the actionlink, it generates a url like this: [URL] Which is the same page as I am currently on. If I change the actionlink to use a property other than one that has a default value in the route table (yes, if I use filterDate it messes up too), it generates a link like this:..............
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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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Jun 29, 2010
I am getting int values from the stored procedure. But when i bind this datasource with the gridview i am seeing the values being converted into float. i am using Text='<% # Bind("Quantity") %' I wanna that to be displayed as int, with out zero'seg: let the value be 233, when i bind that its getting displayed as 233.00
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Jul 14, 2010
Being new to ASP.NET I have run into trouble building my own Whack-a-mole program. I think my problem comes from using Buttons, which by themselves send post backs to the server, making the software unusable. The looks are in place, making new buttons show up in the grid, in different places by random. However, when a button is pushed - the score doesn't change (which I feel is strange).
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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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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Jan 20, 2010
How to set the model for the particular controller from another controller ?
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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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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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