Pass string from Global.asax to Controller

Hi,

I am trying to pass string from Global.asax Application_BeginRequest to MVC Controller page.

While passing string, checking the form input and validating data in Global.asax

Application_BeginRequest method. If any illegal charactors found, I have to redirect to the same page with error message what they entered wrong. I don't want to display the error message in URL.

So, I tried through HttpContext.Current.Items["Key"]="test message" and session too.

Please help me, whats wrong with code and how to pass a string value to controller from Global.asax?

Thanks in Advance.

Global.asax Code:

protected void Application_BeginRequest()
{
if (Request.HttpMethod.Equals("post", StringComparison.InvariantCultureIgnoreCase))
{
var keys = Request.Form.AllKeys;
foreach (var obj2 in keys)
{
var a = Request.Form.Get(obj2);
string illChar = UnSafeChar(a);
if(!string.IsNullOrEmpty(illChar))
{
HttpContextBase currentContext = new HttpContextWrapper(HttpContext.Current);
UrlHelper urlHelper = new UrlHelper(HttpContext.Current.Request.RequestContext);
RouteData routeData = urlHelper.RouteCollection.GetRouteData(currentContext);
string ctlr = routeData.Values["controller"] as string;
string act = routeData.Values["action"] as string;
//The below line sending null to controller
//HttpContext.Current.Items["AppErr"] = "You have entered illegal characters : " + illChar.ToString();
//The below session also not working
//HttpContext.Current.Session["AppErrSession"] = "This is test message session";
var tempUrlHelper = new UrlHelper(HttpContext.Current.Request.RequestContext);
Response.Redirect(tempUrlHelper.Action(act, ctlr));
}
}
}
}

3 Replies

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Laxmidhar Sahoo7y ago
assign the value to astatic class varable
MANIMARAN RAMASAMY7y ago
Hi Amit, we are not using any service. And I am not able to use any session from Application_BeginRequest(). Any other idea?
Amit Kumar7y ago
Hi, You can use Session. But In MVC we can say that Controller is the reciver of request, So it is better to call web service from controller.