I wanTransfer values from one page to another using Request Object
but when i try store
textBox value into Request object like..
Request["Name"] = txtName.Text;
i get the following Error
Property or indexer 'System.Web.HttpRequest.this[string]' cannot be assigned to -- it is read only
Is Request object allows us to store values init like Session & Application Object.
I have a class which implements IHttpHandler that is designed to handle image resize requests. It handles Urls like so [URL] Currently the handler looks for myimg.jpg on disk, cuts a 100x100 thumbnail (if it isn't already present) and redirects the client to the thumbnail like so Response.RedirectPermanent("/some/virtualPath/to/thumbnail.jpg");
This has been working great, but I would like to avoid forcing the client to issue a second HTTP request. Is it safe to do the following? Server.Transfer("/some/virtualPath/to/thumbnail.jpg") All the MSDN documentation talks about using Server.Transfer() to redirect to an aspx page, so I'm not sure if this is the right thing to do or not.
I want to pass my textbox value to another page and display in label on submit button click on first page...
View 1 RepliesI am new to webmatix and I do not do much development. I was trying to get some values from a request object and it's probably something very stupid I am doing wrong but really I cannot see what it is. This is the code I am trying to use, but I get no value from any items from the form:
@{
Layout = "_SiteLayout.cshtml";
Page.Title = "test";
if (IsPost)
[Code]....
How would I transfer the values of an array created at runtime from one page to another? I tried using Response.Redirect because single values are getting transferred, but this isn't working properly with the array.
View 1 RepliesI'm creating a Page object and adding a control to it for printing purposes. The code works, however I can not find a way to add a stylesheet link to the header. In the code I pasted I'm trying to add a link to the header and then add the header control to the page, but this causes an error:
Request is not available in this context
System.Web.UI.Page.get_Request() +8700216
System.Web.UI.HtmlControls.HtmlHead.RenderChildren(HtmlTextWriter writer) +83.....
I have written an application that basically gathers up a bunch of text and numerical data from the client PC and stores it as an object. Right now I'm implementing XML serialization so that the file can be saved.
The issue is now, how do I get this data to the server? I have a server running IIS 7 setup but I don't quite understand the ASP.net life cycle, so I'm not sure how to implement the receiving app.
I have a webservice, it has few webmethods. when i create a client proxy and invoke the methods to check its response, i am getting this error. Can someone tell me what things can i check to know the cause of this? The error is not saying much hence blocked on this.
View 1 RepliesI'm implementing the MVP pattern within an existing asp.net webforms application and I was wondering if there is a clean way to map my form data to a data transfer object. I'm not particularly fond of implementing it this way:
MyObject obj = new MyObject()
{
bj.Name = txtName.Text,
obj.Description = txtDescription.Text,
obj.SomeOtherValue = txtOtherValue.Text
};
I finished NerdDinner tutorial and now I'm playing a bit with project. Index page shows all upcoming dinners:
public ActionResult Index()
{
var dinners = dinnerRepository.FindUpComingDinners().ToList();
return View(dinners);
}
In DinnerRepository class I have method FindAllDinners and I would like to add to above Index method number of all dinners, something like this:
public ActionResult Index()
{
var dinners = dinnerRepository.FindUpComingDinners().ToList();
var numberOfAllDinners = dinnerRepository.FindAllDinners().Count();
return View(dinners, numberOfAllDinners);
}
I am using ASP.NET MVC 2.0 and I want to transfer my ViewModel properties to business object. I can do this manually or use AutoMapper or use new method available in ASP.NET MVC 2.0. My question is that does anyone know the name of the new method which allows to copy the properties from one object to another?
View 1 RepliesI'm working on an application that uses an approach to localization where they just call a translate function for every piece of text on a page. It leads to a lot of redundant code that looks like this (psuedocode):
function page_load():
translateControlText(control1, language);
translateControlText(control2, language);
translateControlText(control3, language);
translateControlText(control4, language);
translateControlText(control5, language);
translateControlText(control6, language);
translateImageAlt(image1, language);
100 more lines of this on a single page
The application is massive, so I don't have the opportunity to rewrite the translation logic. However, I think I could just loop through all of the controls on a page, check their type, and translate the appropriate property. At least then I would just have to call 1 function per page, and then throw it in a base page or master. However, I probably wouldn't want to translate certain things, such as table cells. Regardless, there is an attribute called Localizable that is on many properties such as Control.Text and Image.Alt. I'd like to be able to get a list of every string on the Page that is stored in a Property marked Localizable. Is this possible? Is this possible without reflection?
How to transfer textbox values in pdf to view .Data is not taken from database.
View 1 RepliesThere are 2 UserControls UC1 and UC2, and there is one more class C. I want to share the same instance of c in both UserControls. I know that this can be possible with properties in both UC's and by registering UC2 in UC1 or vice versa. But I want the solution to be loosely coupled. Any best possible way without touching the Actual Page (which hosts UC's)? So i need some best possible way between UCs transfering C.
View 5 RepliesI need to pass api key in custom http header ('X-ApiKey') and pass to another page. The second page will read that api key and do further processing. If api key is not passed in, it will redirect to error page.
I tried this way, but it didn't work.
In First.aspx page
Response.AppedHeader("X-ApiKey", "xxxxxxxxxx");
Response.Redirect("Second.aspx");
In Second.aspx page
string apikey = Request.Headers.Get("X-apiKey");
but X-apiKey is not passed in in second.aspx http header and ended up redirecting to error page.
What is actually meant by the request and response object in asp.net?
View 1 RepliesSometimes when transferring to a different page, I have to use response.redirect instead of server.transfer, and when I do, the name of the page always shows up in the url such as [URL]
I use server.transfer when I can, but unfortunately I haven't found a way to use it unless the transferred page refers back to the parent when leaving.
How can I mask what page is being viewed after doing a response.redirect to another page.
as u know, you can call Server.Transfer() or place some values in Session["objName"]=value; inside your page. but i'm writing a class which has not page, so it does not have any Server or Session object.
how can call this objects or methods outside of the page (within my class) ?
I have used a image handler to display image which works fine... My problem is how can v pass the image using sessions on different pages. I have an image control in master page and fileupload control on the content page.... bt m not able to implement sessions for images as image can't be store to string.
View 1 RepliesPrior to using a ViewModel, I could easily pass the "soon to be edited" object directly to the view without needing to fuss over setting individual properties etc as the View conveniently accepted the Employee type directly..
[HttpGet]
public ActionResult EditEmployee(int? id)
{
EmployeeRepository ER = new EmployeeRepository();
Employee SomeEmployee = ER.GetEmployee(id.Value);
if(SomeEmployee!=null)
return View(SomeEmployee);
But now I'm using a ViewModel with DataAnnotations attributes applied over the top of various properties for validation purposes. Which creates a problem.. After fetching the "soon to be edited" object from the db, setting the ViewModel's values is suddenly a whole lot more complicated. I can't simply pass the retrieved object straight to the view, as the View now expects the VMEmployee type instead. I would like to be able to do something like:
[HttpGet]
public ActionResult EditEmployee(int? id)
{
EmployeeRepository ER = new EmployeeRepository();
Employee SomeEmployee = ER.GetEmployee(id.Value);
if(SomeEmployee!=null)
return View(new VMEmployee(SomeEmployee));
All paths seem to lead to a huge constructor which manually sets the values of each individual property. But I never had to do that before when I wasn't using a ViewModel. Model binding was a blessing! My objects also have complex child objects, which my form is also collecting values for, so this would be a huge/verbose task against DRY principals. I don't even really want to use a ViewModel, but am forced to because I need two different DataAnnotations rule sets for different validation scenarios applied to the same object.
All I want to do is be able to have two different DataAnnotations rule sets for different scenarios. I.e. public-facing www site vs internal-facing admin site. DataAnnotations doesn't seem to be flexible enough to easily cater for this common need. I've tried AutoMapper, but it throws an error saying it can't map my object types, I suspect because Employee was auto-generated by LINQ to SQL. What is the most elegant way to achieve this while sticking to DRY principals?
i have create dynamic menu control , i have master page and login page , once the user login , i want to show the dynamic menu in my master page. below i try to call masterpage control in my child page ,but i throughs the error
Object reference not set to an instance of an object.
my master page code
public partial class MasterPage : System.Web.UI.MasterPage
{
protected void Page_Load(object sender, EventArgs e)
{
}
public string MyProperty
{
set
{
// lblUser.Text = value;
lblUser.Text = value; // here i got the error
}
}
}
My child page code
protected void btnwork_Click(object sender, EventArgs e)
{
((MasterPage)this.Master).MyProperty = "Text changed from Sub Page";
}
i am creating a print view using checkboxes that a customer uses to select which items they wish to print. I am having difficulty transfering the selected gridview items to another page. I was using crosspage post.
View 2 RepliesI'm new to programming in ASP.NET, but I'm making my way through Wrox's Beginning ASP.NET 3.5 in C# and VB.NET.
I'm at a section where I'm creating a BasePage. I successfully created a BasePage by creating a new class file in my App_Code folder called BasePage.cs with the following code:
[Code]....
If I run that code everything works out fine. The page loads and all is well. But, if I try to do the same thing to a page that uses my MasterPage.master file, I get the following error:
Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Why is that? In the example code from the book (that also uses a MasterPage.master file), everything excutes and runs just fine. But in my test, I get the above error. I've tried comparing my pages to the books included source pages, but I can't find any differences.
I'm using HttpModule to capture requests to the web server. Before processing the page I'd like to check the values contained in some keys of the Request.Form collection and according to some logic change if necessary. I'd like to do this when BeginRequest event is fired. The problem is that the Request.Form collection is readonly.
View 4 RepliesI use radiobutton in my page
<asp:RadioButtonList ID="RBLType" runat="server" RepeatDirection="Horizontal" TextAlign="right"
CssClass="Drbgalary">
<asp:ListItem Value="دارای گالری" Text="دارای گالری"><span style="color:#676767">دارای گالری</span></asp:ListItem>
<asp:ListItem Value="دارای محصول" Text="دارای محصول"><span style="color:Red">دارای محصول</span></asp:ListItem>
</asp:RadioButtonList>
[code]....
but I run page below error happen.Object reference not set to an instance of an object.An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Source Error:
Line 91: if (_dr["storetype"].ToString().Trim() == "دارای محصول")Line 92: {
Line 93: RBLType.Items.FindByText("دارای محصول").Selected = true;Line 94: }
Line 95: else {