I am using an if else in Razor view to check for null value like this:
#foreach (var item in Model)
{
<tr id="#(item.ShopListID)">
<td class="shoptablename">#Html.DisplayFor(modelItem => item.Name)
</td>
<td class="shoptableamount">
#if (item.Amount == null)
{
Html.Display("--");
}
else
{
String.Format("{0:0.##}", item.Amount);
}
</td>
</tr>
}
However, no matter my model amount is null or having a value, the html rendered do not contain any value in the amount.
I wonder why this is happening. Any idea?
Thanks...
EDIT:
Decided to did it in controller:
// Function to return shop list food item amount
public string GetItemAmount(int fid)
{
string output = "";
// Select the item based on shoplistfoodid
var shopListFood = dbEntities.SHOPLISTFOODs.Single(s => s.ShopListFoodID == fid);
if (shopListFood.Amount == null)
{
output = "--";
}
else
{
output = String.Format("{0:0.##}", shopListFood.Amount);
}
return output;
}
and call at View like:
<td class="shoptableamount">
#Html.Action("GetItemAmount", "Shop", new { fid = item.ShopListFoodID })
</td>
You have to use the #()
#if (item.Amount == null)
{
#("--");
}
else
{
#String.Format("{0:0.##}", item.Amount)
}
As noted in the comments and other answers, the Html.Display is not for displaying strings, but for displaying data from the ViewData Dictionary or from a Model. Read http://msdn.microsoft.com/en-us/library/ee310174%28v=VS.98%29.aspx#Y0
I think you want to display "-----" if amount is null.
#foreach (var item in Model)
{
<tr id="#(item.ShopListID)">
<td class="shoptablename">#Html.DisplayFor(modelItem => item.Name)
</td>
<td class="shoptableamount">
#if (item.Amount == null)
{
#Html.Raw("--")
}
else
{
String.Format("{0:0.##}", item.Amount);
}
</td>
</tr>
}
That's because you are using the Display() method incorrectly. The overload you are using is Display(HtmlHelper, String). If you are looking for "--" to be the text, you should use something like:
#Html.Label("--");
There are actually two other ways to display text from a code block in razor besides the suggested #(""), using a <text> tag and it's shorthand #:
#{
#("--")
<text>--</text>
#:--
}
The code above will display -- three times.
Related
We use Knockout.js and MVC in a Webapp and are having an issue, where the order merchandise total observed is 0 by Knockout.js, as displayed in the GUI.
The code seems to be working intermittently, because sometimes we do show the merchandise total in other orders. All orders use the same code and a merchandise total non zero value is always seen in the
OrderDetailClientViewModel object within the controller before being passed to the view. The view is coded in Knockout.js and plain javascript.
The "Totals" property shown below is an object (Models.OrderTotalViewModel), which contains the "MerchandiseTotal" field, which is sometimes showing a 0. I'm showing the relevant parts of the two view files below. I don't see the merchandiseTotal value being modified erroneously in the code. Only helpful segments are shown below.
Any suggestions to fix this intermittent behavior would be greatly appreciated!!!
Thank you,
Ken
--Edit.cshtml
#model Models.OrderEditPageViewModel
...
var rawViewModel = #(Html.ToJson(Model.OrderDetailClientViewModel()));
var viewModel = ko.mapping.fromJS(rawViewModel,
{
'HeaderData': {
create: function(options) {
options.data.StartDate = new Date(options.data.StartDate);
options.data.EndDate = new Date(options.data.EndDate);
var headerData = ko.mapping.fromJS(options.data);
headerData.errors = new HeaderDataError();
return headerData;
}
},
'Totals': {
create: function(options) {
var totals = ko.mapping.fromJS(options.data);
totals.errors = new TotalsError();
totals.isPromoCodeApplied = ko.observable(false);
if ($.trim(totals.PromoCode()) !== "")
totals.isPromoCodeApplied(true);
return totals;
}
}
});
...
-- This segment in Edit.cshtml shows where the OrderTotalViewModel.cshtml is called for Totals.
<tr>
<td colspan="3">
#Html.EditorFor(m => m.Totals)
</td>
</tr>
--OrderTotalViewModel.cshtml
#model Models.OrderTotalViewModel
#{ Layout = null; }
...
<td colspan="3" style="text-align:right">
<table class="PaddedTable" style="width:925px">
<tbody>
<tr>
<td style="width:125px;text-align:right">Merchandise Total:</td>
<td style="text-align:right" class="NormalTextBold">
#(Html.Knockout().SpanFor(m => m.MerchandiseTotal)
.HtmlAttributes(new { #class = "NormalTextBold" })
.Currency())
I need to access practiceid property in my controller file please help how I can access this
Corporate
Tax & Employee Comp/Exec Benefits
Business Finance & Restructuring
Regulatory
My csHtml code is as follows:
#foreach (var facetData in Model.SearchResultItems.Facets.Select((x) => new { Item = x.Key, Index = x.Value }))
{
<tr>
<td>
#Html.ActionLink(#facetData.Index, "Search","Search", new { practiceid = #facetData.Item })
</td>
</tr>
}
and controller code is as follows:
public ActionResult Search(string practiceid)
{
}
But I'm not getting anything in my practiceid parameter.
See this question.
What you want to do is to add parameters to the tag, not to the link. Which means you should leave fourth argument null and use fifth instead. ie.
#Html.ActionLink(#facetData.Index, "Search","Search", null, new { practiceid = facetData.Item })
And the documentation for this helper method with focus on fifth parameter.
Add the extra null
#foreach (var facetData in Model.SearchResultItems.Facets.Select((x) => new { Item = x.Key, Index = x.Value }))
{
<tr>
<td>
#Html.ActionLink(#facetData.Index, "Search","Search", new { practiceid = facetData.Item }, null)
</td>
</tr>
}
I have a partialview [_SearchProduct] within the main view, let's say [product] view. The Partialview has a number of checkboxes segregated into different sections like search by company,search by product etc. with one [search] button.
A User can select multiple checkboxes. When user clicks [search] button I need to pass ids of all selected checkbox to controller action and re-render the page again considering the user's selection . Please guide me how to pass selected checkbox ids to my controller action.
My partial view is something like below:
<fieldset>
<legend>By Company</legend>
<table style="border-style: none;">
<tr>
#{
int i = 0;
foreach (var item in Model.CompanyName)
{
i = i + 1;
<td style="border-style: none;text-decoration:none;" >
#Html.CheckBox("chkCompany",new {id="chkCompany_" + Model.CompanyId.Tostring()}) #Model.CompanyName
</td>
if (i == 5)
{
#:</tr><tr>
i = 0;
}
}
}
</tr>
</table>
</fieldset>
<fieldset>
<legend>By Product</legend>
<table style="border-style: none;">
<tr>
#{
i = 0;
foreach (var item in Model.Product)
{
i = i + 1;
<td style="border-style: none;text-decoration:none;" >
#Html.CheckBox("chkProduct",new {id="chkProduct_" + Model.CompanyId.Tostring()}) #Model.ProductName
</td>
if (i == 10)
{
#:</tr><tr>
i = 0;
}
}
}
</tr>
</table>
</fieldset>
checkboxes are dynamic
Checkbox id represent the primarykey of respective table based on which i do filtering.
Please guide me>>
So it sounds like you have a structure containing names (of companies/products), and ids.
I would create a View Model structure that looked like
public class PartialViewModel //Make sure this is included in your main view model
{
public List<ObjectsToInclude> Companies { get; set; }
public List<ObjectsToInclude> Products { get; set; }
}
public class ObjectsToInclude //Give this a better name
{
public string Name { get; set; }
public string Id { get; set; }
public bool Include { get; set; }
}
Then in order to bind them you could do
for (int i =0; i<Model.Companies.Count(); i++)
{
<td style="border-style: none;text-decoration:none;" >
#Html.HiddenFor(m => m.Companies[i].Id)
#Html.CheckBoxFor(m => m.Companies[i].Include) #Model.Companies[i].Name
</td>
if (i == 5)
{
#:</tr><tr>
i = 0;
}
}
Then provided your post takes a parameter of PartialViewModel (or some MainViewModel where that contains an instance of PartialViewModel), you'll have lists of companies and products binded. You can loop through the list, and take the respective ids of anything checked to be included.
Edit: If you wanted a single comma separated array to be posted, it would be possible by by creating an onclick event for your checkboxes, and then setting a value of a hidden input every time a checkbox is clicked. But then your code would only work with JavaScript enabled. If you need a comma separated string, you can create it server side with the view model I suggested.
string companyIds = String.Join(",", model.Companies
.Where(company => company.Include)
.Select(company => company.Id));
http://dotnetnsqlcorner.blogspot.in/2012/09/multiple-checkboxes-in-mvc-3-and-post.html
I've got a model that is returning a IEnumerable of football picks for a variable number of users. Due to this, I'm dynamically building an html table with a variable number of columns. Basically, my picks will come back like this. However, each game is going to be repeated for each User, so I'm only adding the first 3 columns of each table row once, and then adding only a single tag until the gameID changes. I know there are probably better ways to do this, but it's just a side project that I need to get done quickly. And, I just want to figure out why it's not working.
GameID
GameDateTimeDisplay
GameTeamDisplay
WinningTeamDisplay
PickedTeamAbbr
OK, so here is the insanity that doesn't work. I can get my table headers created successfully, but then the tbody isn't working, but it's erroring in an odd place.
I had to put all the #Html.Raw(...) stuff in there because it was having trouble finding the end tags for the foreach and if statements without them.
Anyway, here is my code. The line that is causing the exception is this:
#gameID = #pick.Game.GameID;
The exception is --> Compiler Error Message: CS1525: Invalid expression term '='
The intellisense shows #gameID as a variable and the #pick.Game.GameID seems to be correct as well.
<table>
<thead>
<tr>
<th>Game</th>
<th>Game Date/Time</th>
<th>Winner</th>
#foreach(var name in #Model.UserNames) {
<th>#name</th>
}
</tr>
</thead>
<tbody>
#{
int lastGameID = 0;
int gameID = 0;
bool firstGame = true;
}
#foreach(var pick in #Model.Picks) {
#gameID = #pick.Game.GameID;
if(#gameID != #lastGameID) {
if(!#firstGame){
<text>#Html.Raw("</tr>")</text>
}
#Html.Raw(
<tr>
<td>#pick.GameTeamDisplay</td>
<td>#pick.GameDateTimeDisplay</td>
<td>#pick.Game.WinningTeam.TeamAbbr</td>
<td>#pick.PickedTeamAbbr</td>
)
}
else {
#Html.Raw(<td>#pick.PickedTeamAbbr</td>)
}
}
#Html.Raw(</tr>)
</tbody>
</table>
UPDATE:
I've removed the #Html.Raw, , etc... Also wrapped the gameID assignment in a #{}. It's now giving me an error on this line,
#{gameID = #pick.Game.GameID;}
Compilation Error: CS1501: No overload for method 'Write' takes 0 arguments
Here is the updated Code:
#foreach(var pick in #Model.Picks) {
#{gameID = #pick.Game.GameID;}
if(#gameID != #lastGameID) {
if(!#firstGame){
#:</tr>
}
#:<tr>
<td>#pick.GameTeamDisplay</td>
<td>#pick.GameDateTimeDisplay</td>
<td>#pick.Game.WinningTeam.TeamAbbr</td>
<td>#pick.PickedTeamAbbr</td>
}
else {
<td>#pick.PickedTeamAbbr</td>
}
}
</tr>
You need to surround it with { } to make it a codeblock
#{gameID = pick.Game.GameID;}
Also, you don't need the # inside the foreach/if statements because they're code blocks.
e.g. you could just write:
foreach(var name in Model.UserNames) {
Just write
#foreach(var pick in Model.Picks) {
<tr>
<td>#pick.GameTeamDisplay</td>
<td>#pick.GameDateTimeDisplay</td>
<td>#pick.Game.WinningTeam.TeamAbbr</td>
<td>#pick.PickedTeamAbbr</td>
</tr>
}
You don't need # inside code block. You can use #: instead of <text>, Html.Raw
You can see here Razor syntax reference
I determined that my Razor view code was simply too complex. The real problem was that I was trying to force a view to work with a Model that I had created for another view. I ended up creating a few more models specifically for this view. Code is much cleaner and best of all it works! Here is the code I ended up with.
<table>
<thead>
<tr>
<th>Game</th>
<th>Game Date/Time</th>
<th>Winner</th>
#foreach(var name in #Model.UserNames) {
<th>#name</th>
}
</tr>
</thead>
<tbody>
#foreach(var game in #Model.Games) {
<tr>
<td>#game.GameDescription</td>
<td>#game.GameDisplayDateTime</td>
<td>#game.GameWinner</td>
#foreach(var pick in game.GamePicks){
<td>#pick.PlayerPick</td>
}
</tr>
}
</tbody>
</table>
I'm trying to list two radio buttons in each row of a table, but I haven't been able to assign unique IDs to each radio button. I'd like to assign the IDs based on the #item.myID as follows:
#foreach (var item in Model)
{
<tr>
<td>
#Html.RadioButton("Yes", #item.myID, #item.IsCool, new { id = "#item.myID", autopostback = "true" })
#Html.RadioButton("No", #item.myID, !#item.IsCool, new { id = "#item.myID", autopostback = "true" })
</td>
</tr>
}
However, the IDs keep rendering literally as "#item.myID". In other words, it's not treating the # sign as a special character. I've also tried using parenthesis, like this: "#(item.myID)".
You need to remove the quotes from around the id assignment, like so;
#foreach (var item in Model)
{
<tr>
<td>
#Html.RadioButton("Yes", item.myID, item.IsCool, new { id = item.myID, autopostback = "true" })
#Html.RadioButton("No", item.myID, !item.IsCool, new { id = item.myID, autopostback = "true" })
</td>
</tr>
}
Also, note that you don't need the additional "#" symbol when you are already in the context of another Razor code block - the Razor View Engine is pretty clever :)