HTML Helper Extension method for Html.Textbox
So I have an extension method for the Html.CheckBoxFor() method that enables the user to pass in an array of permissions like this:
<%= Html.CheckBoxForWithPermission(m => m.Current, new string[] { PERMISSIONS.hasICAdvanced }, new { @class = "economicTextBox",开发者_JAVA百科 propertyName = "Current", onchange = "UseCurrent();UpdateField(this);" })%>
The method looks like this:
public static MvcHtmlString CheckBoxForWithPermission<TModel>(
this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, bool>> expression,
string[] permissions,
object htmlAttributes
)
{
foreach (string permission in permissions)
{
if (Chatham.Web.UI.Extranet.SessionManager.PhysicalUser.IsInRole(permission))
{
// the user has the permission => render the checkbox
return htmlHelper.CheckBoxFor(expression, htmlAttributes);
}
}
// the user has no permission => render a readonly checkbox
var mergedHtmlAttributes = new RouteValueDictionary(htmlAttributes);
mergedHtmlAttributes["disabled"] = "disabled";
return htmlHelper.CheckBoxFor(expression, mergedHtmlAttributes);
}
Basically, I want to create the exact same thing except for an Html.TextBox method that we currently call like this:
<%= Html.TextBox("RateTimeStamp", Model.RateTimeStamp.HasValue ? Model.RateTimeStamp.Value.ToString("dd-MMM-yyyy") : "", new { @class = "economicTextBox", propertyName = "RateTimeStamp", onchange = "parseAndSetDt(this);", dataType = "Date" })%>
Since this helper is a little bit different I'm not really sure how to format the method.
Any help would be greatly appreciated. Thanks!
public static MvcHtmlString TextBoxForWithPermission<TModel>(
this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, bool>> expression,
string[] permissions,
object htmlAttributes
)
{
foreach (string permission in permissions)
{
if (Chatham.Web.UI.Extranet.SessionManager.PhysicalUser.IsInRole(permission))
{
// the user has the permission => render the textbox
return htmlHelper.TextBoxFor(expression, htmlAttributes);
}
}
// the user has no permission => render a readonly checkbox
var mergedHtmlAttributes = new RouteValueDictionary(htmlAttributes);
mergedHtmlAttributes["disabled"] = "disabled";
return htmlHelper.TextBoxFor(expression, mergedHtmlAttributes);
}
and then:
<%= Html.TextBoxForWithPermission(
x => x.RateTimeStamp,
new string[] { PERMISSIONS.hasICAdvanced },
new {
@class = "economicTextBox",
propertyName = "RateTimeStamp",
onchange = "parseAndSetDt(this);",
dataType = "Date"
}
) %>
and if you want to have the format you could use untyped helpers:
public static MvcHtmlString TextBoxWithPermission<TModel>(
this HtmlHelper<TModel> htmlHelper,
string name,
object value,
string[] permissions,
object htmlAttributes
)
{
foreach (string permission in permissions)
{
if (Chatham.Web.UI.Extranet.SessionManager.PhysicalUser.IsInRole(permission))
{
// the user has the permission => render the textbox
return htmlHelper.TextBox(name, value, htmlAttributes);
}
}
// the user has no permission => render a readonly checkbox
var mergedHtmlAttributes = new RouteValueDictionary(htmlAttributes);
mergedHtmlAttributes["disabled"] = "disabled";
return htmlHelper.TextBox(name, value, mergedHtmlAttributes);
}
and call like this:
<%= Html.TextBoxWithPermission(
"RateTimeStamp",
Model.RateTimeStamp.HasValue
? Model.RateTimeStamp.Value.ToString("dd-MMM-yyyy")
: "",
new string[] { PERMISSIONS.hasICAdvanced },
new {
@class = "economicTextBox",
propertyName = "RateTimeStamp",
onchange = "parseAndSetDt(this);",
dataType = "Date"
}
) %>
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