MVC :: Displaying Custom Text For Null Values?
Jun 11, 2010
I have a number of nullable DateTime fields (Entity Framework model), and in my MVC view, I want to display custom text when the value is null. I would normally use the C# ? or ?? operators, but these can't be used unless I make all output occur in a response.write. Also, I need to handle existing DataAnnotations (like format string). It's all pointing to a helper method, or an extension method on Html. I am hoping there is a DataAnnotation attribute that I missed that covers this scenario.
Is there a way to use the <%: operator and have custom text for null values?
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Jan 20, 2010
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Jan 28, 2010
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[code]....
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[Code]....
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http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.databoundcontrol.aspx
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public class SimpleTextBoxControl : DataBoundControl
{
private TextBox nameTextBox;
public string DataTextField
{
get
{
object o = ViewState["DataTextField"];
return ((o == null) ? string.Empty : (string)o);
}
set
{
ViewState["DataTextField"] = value;
}
}
[
Bindable(true),
Category("Data"),
DefaultValue(""),
Description("The text to display on the link."),
Localizable(true),
PersistenceMode(PersistenceMode.InnerDefaultProperty)
]
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get
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}
set
{
ViewState["Text"] = value;
}
}
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{
if (retrievedData == null)
return;
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{
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{
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}
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}
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}
}
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[Code]....
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[Code]....
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Apr 13, 2010
I want to know how to handle null values....
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I'm using a custom ashx HttpHandler to retrieve gif images from a database and show it on a website - when the image exists, it works great.
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[code]...
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foreach (RadPanelItem PanelItem in RadPanelBar1.GetAllItems())
{
RadTextBox txtAge = RadPanelBar1.FindControl("txtAge") as RadTextBox;
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}
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<ItemTemplate>
[code]...
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<error statusCode="404" redirect="/Areas/User/Views/Shared/Error" />
</customErrors>
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