Considering the following Service Contract:
[WebGet(UriTemplate = "/stores")]
DTO.Stores GetAllStores();
[WebGet(UriTemplate = "/stores/{name}")]
DTO.Stores GetStores(string name);
I can reach these two Urls: http://localhost/v1/stores and http://localhost/v1/stores/Joe. However the Url http://localhost/v1/stores/ (notice the slash at the end) returns me an "Endpoint not found" error. Ideally, I would like http://localhost/v1/stores/ to call GetAllStores().
How can I do that? Thanks!
I would try putting a tilde in. Perhaps "~/stores"?
Or, with routing, drop the "/" at the front.
What if you use "string? name" as parameter?
[WebGet(UriTemplate = "/stores/{name}")]
DTO.Stores GetStores(string? name);
And since both methods you have are returning the same thing (DTO.Stores) you could use a single method to get the Stores instead of two (as you are doing now). Like this:
[WebGet(UriTemplate = "/stores/{name}")]
DTO.Stores GetStores(string? name)
{
if(string.IsNullOrEmpty(name))
{
//get specific store
}
else
{
//get all stores
}
}
P.S.: I am not sure if that would work well with WCF, but give it a try. ;-)
Related
I'm trying to get parameters received from a form, that were sent with method POST.
I don't know how it's called in asp, M$ loves to change stuff's names to mess with us. They come in HTTP body, while GET/QueryString parameters come in URL after the ? sign.
In PHP, "get patameters" are available in the $_GET array. In asp they are Request.QueryString["parameter1"].
"post patameters" are in $_POST, and I cant find it in asp. I hope I made it clear :p
To read the value from paramater1 contained inside the form data:
string paramater1 = Request.Form["paramater1"];
Note that if the form doesn't contain your variable, paramater1 will be null.
Suppose your querystring is something like this :
http://stackoverflow.com/questions.aspx?id=17844065&title=post-parameters-in-asp-net
if i am right then you are looking for this. Please note this is regarding ASP.Net, I have no idea about classic ASP. And this will not work on classic ASP, I believe.
You can use in cs,
if(Request["id"]!=null )
{
var id= Request["id"]; // gives you id as 17844065 string values
}
if(Request["title"]!=null )
{
var title= Request["title"]; // gives you title as string
}
Update :
NameValueCollection nvc = Request.Form;
string userName, password;
if (!string.IsNullOrEmpty(nvc["txtUserName"]))
{
userName = nvc["txtUserName"];
}
if (!string.IsNullOrEmpty(nvc["txtPassword"]))
{
password = nvc["txtPassword"];
}
Try Request.Params, it should contain all GET and/or POST parameters, Request.Form should contain only form parameters.
I am trying to define MapPageRoute on the application global.asax but my problem is that I can not route the specific URL to a physical file with a query string.
For example I want to redirect http://mysite.com/Apple to http://mysite.com/product.aspx?id=95.
What I managed to achieve so far is if a user ask for ./Apple he will be redirected to ./product.aspx but I can not pass the query string.
Looking forward for your comments.
Try this:
if (Page.RouteData.Values["Apple"] != null)
{
int appleID = Convert.ToInt32(Page.RouteData.Values["Apple"]);
Response.Redirect("~/product.aspx?id=" + appleID.ToString(), true);
}
If the controller action has the OutputCache attribute specified on an action, is there any way to clear the output cache without having to restart IIS?
[OutputCache (Duration=3600,VaryByParam="param1;param2")]
public string AjaxHtmlOutputMethod(string param1, string param2)
{
var someModel = SomeModel.Find( param1, param2 );
//set up ViewData
...
return RenderToString( "ViewName", someModel );
}
I'm looking at using HttpResponse.RemoveOutputCacheItem(string path) to clear it, but I'm having trouble figuring out what the path should be to map it to the action method. I'm going to try again with the aspx page that is rendered by ViewName.
Possibly I'll just manually insert the output of RenderToString into the HttpContext.Cache instead if I can't figure this one out.
Update
Please note that the OutputCache is VaryByParam, and testing out a hardcoded path "/controller/action" does not actually clear the outputcache, so it looks like it has to match "/controller/action/param1/param2".
That means I'll probably have to revert to object level caching and manually cache the output for RenderToString() :(
Try this
var urlToRemove = Url.Action("AjaxHtmlOutputMethod", "Controller");
HttpResponse.RemoveOutputCacheItem(urlToRemove);
UPDATED:
var requestContext = new System.Web.Routing.RequestContext(
new HttpContextWrapper(System.Web.HttpContext.Current),
new System.Web.Routing.RouteData());
var Url = new System.Web.Mvc.UrlHelper(requestContext);
UPDATED:
Try this:
[OutputCache(Location= System.Web.UI.OutputCacheLocation.Server, Duration=3600,VaryByParam="param1;param2")]
Otherwise the cache deletion won't work because you've
cached the HTML output on the user's machine
Further to the accepted answer, to support VaryByParam parameters:
[OutputCache (Duration=3600, VaryByParam="param1;param2", Location = OutputCacheLocation.Server)]
public string AjaxHtmlOutputMethod(string param1, string param2)
{
object routeValues = new { param1 = param1, param2 = param2 };
string url = Url.Action("AjaxHtmlOutputMethod", "Controller", routeValues);
Response.RemoveOutputCacheItem(url);
}
However Egor's answer is much better, because it supports all OutputCacheLocation values:
[OutputCache (Duration=3600, VaryByParam="param1;param2")]
public string AjaxHtmlOutputMethod(string param1, string param2)
{
if (error)
{
Response.Cache.SetNoStore();
Response.Cache.SetNoServerCaching();
}
}
When SetNoStore() and SetNoServerCaching() are called, they prevent the current Request being cached. Further requests will be cached, unless the functions are called for those requests as well.
This is ideal for handling error situations - when normally you want to cache responses, but not if they contain error messages.
I think correct flow is:
filterContext.HttpContext.Response.Cache.SetNoStore()
Add code to AjaxHtmlOutputMethod
HttpContext.Cache.Insert("Page", 1);
Response.AddCacheItemDependency("Page");
To clear output cache you can now use
HttpContext.Cache.Remove("Page");
Another option is to use VaryByCustom for the OutputCache and handle the invalidation of certain cache elements there.
Maybe it works for you, but it's not a general solution to your problem
I have an ASP.NET web form where I can can enter an email address.
I need to validate that field with acceptable email addresses ONLY in the below pattern:
xxx#home.co.uk
xxx#home.com
xxx#homegroup.com
A regular expression to validate this would be:
^[A-Z0-9._%+-]+((#home\.co\.uk)|(#home\.com)|(#homegroup\.com))$
C# sample:
string emailAddress = "jim#home.com";
string pattern = #"^[A-Z0-9._%+-]+((#home\.co\.uk)|(#home\.com)|(#homegroup\.com))$";
if (Regex.IsMatch(emailAddress, pattern, RegexOptions.IgnoreCase))
{
// email address is valid
}
VB sample:
Dim emailAddress As String = "jim#home.com"
Dim pattern As String = "^[A-Z0-9._%+-]+((#home\.co\.uk)|(#home\.com)|(#homegroup\.com))$";
If Regex.IsMatch(emailAddress, pattern, RegexOptions.IgnoreCase) Then
' email address is valid
End If
Here's how I would do the validation using System.Net.Mail.MailAddress:
bool valid = true;
try
{
MailAddress address = new MailAddress(email);
}
catch(FormatException)
{
valid = false;
}
if(!(email.EndsWith("#home.co.uk") ||
email.EndsWith("#home.com") ||
email.EndsWith("#homegroup.com")))
{
valid = false;
}
return valid;
MailAddress first validates that it is a valid email address. Then the rest validates that it ends with the destinations you require. To me, this is simpler for everyone to understand than some clumsy-looking regex. It may not be as performant as a regex would be, but it doesn't sound like you're validating a bunch of them in a loop ... just one at a time on a web page
Depending on what version of ASP.NET your are using you can use one of the Form Validation controls in your toolbox under 'Validation.' This is probably preferable to setting up your own logic after a postback. There are several types that you can drag to your form and associate with controls, and you can customize the error messages and positioning as well.
There are several types that can make it a required field or make sure its within a certain range, but you probably want the Regular Expression validator. You can use one of the expressions already shown or I think Visual Studio might supply a sample email address one.
You could use a regular expression.
See e.g. here:
http://tim.oreilly.com/pub/a/oreilly/windows/news/csharp_0101.html
Here is the official regex from RFC 2822, which will match any proper email address:
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")#(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])
I second the use of a regex, however Patrick's regex won't work (wrong alternation). Try:
[A-Z0-9._%+-]+#home(\.co\.uk|(group)?\.com)
And don't forget to escape backslashes in a string that you use in source code, depending on the language used.
"[A-Z0-9._%+-]+#home(\\.co\\.uk|(group)?\\.com)"
Try this:
Regex matcher = new Regex(#"([a-zA-Z0-9_\-\.]+)\#((home\.co\.uk)|(home\.com)|(homegroup\.com))");
if(matcher.IsMatch(theEmailAddressToCheck))
{
//Allow it
}
else
{
//Don't allow it
}
You'll need to add the Regex namespace to your class too:
using System.Text.RegularExpressions;
Use a <asp:RegularExpressionValidator ../> with the regular expression in the ValidateExpression property.
An extension method to do this would be:
public static bool ValidEmail(this string email)
{
var emailregex = new Regex(#"[A-Za-z0-9._%-]+(#home\.co\.uk$)|(#home\.com$)|(#homegroup\.com$)");
var match = emailregex.Match(email);
return match.Success;
}
Patricks' answer seems pretty well worked out but has a few flaws.
You do want to group parts of the regex but don't want to capture them. Therefore you'll need to use non-capturing parenthesis.
The alternation is partly wrong.
It does not test if this was part of the string or the entire string
It uses Regex.Match instead of Regex.IsMatch.
A better solution in C# would be:
string emailAddress = "someone#home.co.uk";
if (Regex.IsMatch(emailAddress, #"^[A-Z0-9._%+-]+#home(?:\.co\.uk|(?:group)?\.com)$", RegexOptions.IgnoreCase))
{
// email address is valid
}
Of course to be completely sure that all email addresses pass you can use a more thorough expression:
string emailAddress = "someone#home.co.uk";
if (Regex.IsMatch(emailAddress, #"^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*#home(?:\.co\.uk|(?:group)?\.com)$", RegexOptions.IgnoreCase))
{
// email address is valid
}
I'm working on a web application that renders a reporting services report as a PDF and one of my requirements is to allow for multiple locations to be included on the same report. To handle this, I have created a multi-value report parameter which seems to do the trick when using the RS UI, etc. But, I am using the webservice for reporting services and cannot for the life of me figure out how to set the value of the parameter to be identified as having multiple values.
I've tried simply setting it as "LOC1,LOC2", but that is being picked up as a single value. I have also tried "LOC1" + System.Environment.NewLine + "Loc2".
You can send it through as a comma-delimited string if you're willing to parse it on the other end. A lot of languages have a String.Split(",") style method you can use for that.
Either that, or you can construct an array (or list, or collection) and pass that through as the parameter, though this would involve changing the contract on the webservice method.
Figured it out, you have to each value separately under the same name, snippet:
//Register parameters
ArrayList<ParameterValue> parmValues;
for(Map.Entry<String,String> entry:reportParams.entrySet()) {
//is it multi-value?
if(entry.getValue().contains(",")) {
//yes, add multiple ParameterValues under the same name
// with each different value
for(String mval:entry.getValue().split(",")) {
ParameterValue pv = new ParameterValue();
pv.setName(entry.getKey());
pv.setValue(mval.trim());
parmValues.add(pv);
}
} else {
//no, just a single value
ParameterValue pv = new ParameterValue();
pv.setName(entry.getKey());
pv.setValue(entry.getValue());
parmValues.add(pv);
}
}