Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>You may take a look at the <a href="http://aspadvice.com/blogs/kiran/archive/2009/11/29/Adding-html-attributes-support-for-Templates-_2D00_-ASP.Net-MVC-2.0-Beta_2D00_1.aspx" rel="noreferrer">following article</a> for writing a custom <code>DataAnnotationsModelMetadataProvider</code>. </p> <p>And here's another, more ASP.NET MVC 3ish way to proceed involving the newly introduced <a href="http://msdn.microsoft.com/en-us/library/system.web.mvc.imetadataaware.aspx" rel="noreferrer">IMetadataAware</a> interface.</p> <p>Start by creating a custom attribute implementing this interface:</p> <pre><code>public class PlaceHolderAttribute : Attribute, IMetadataAware { private readonly string _placeholder; public PlaceHolderAttribute(string placeholder) { _placeholder = placeholder; } public void OnMetadataCreated(ModelMetadata metadata) { metadata.AdditionalValues["placeholder"] = _placeholder; } } </code></pre> <p>And then decorate your model with it:</p> <pre><code>public class MyViewModel { [PlaceHolder("Enter title here")] public string Title { get; set; } } </code></pre> <p>Next define a controller:</p> <pre><code>public class HomeController : Controller { public ActionResult Index() { return View(new MyViewModel()); } } </code></pre> <p>A corresponding view:</p> <pre><code>@model MyViewModel @using (Html.BeginForm()) { @Html.EditorFor(x =&gt; x.Title) &lt;input type="submit" value="OK" /&gt; } </code></pre> <p>And finally the editor template (<code>~/Views/Shared/EditorTemplates/string.cshtml</code>):</p> <pre><code>@{ var placeholder = string.Empty; if (ViewData.ModelMetadata.AdditionalValues.ContainsKey("placeholder")) { placeholder = ViewData.ModelMetadata.AdditionalValues["placeholder"] as string; } } &lt;span&gt; @Html.Label(ViewData.ModelMetadata.PropertyName) @Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue, new { placeholder = placeholder }) &lt;/span&gt; </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHtml5 Placeholders with .NET MVC 3 Razor EditorFor extension?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USDarin Dimitrov
    1. USDarin Dimitrov
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHtml5 Placeholders with .NET MVC 3 Razor EditorFor extension?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COthanks for the info (and a great example) of the IMetadataAware interface!
      singulars
      1. PO
      1. USseekay
    2. COis this still valid for MVC3? I noticed a new [Display(Prompt = "type watermark here")] in MVC3 but could not make it work. any idea?
      singulars
      1. PO
      1. USsmnbss
    3. CO@smnbss You are correct. See my answer to see how to make `Prompt` work.
      singulars
      1. PO
      1. USDaniel Liuzzi
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload