Hidden Variable Getting Blank When Sending From One Page To Another?
Nov 9, 2010
There are two frames. In ASP page 1 that is being displayed in frame 1, we have a form with hidden variables. On some action this from is submitted to frame 2 with action as ASP page 2 (target = frame2, action = 'ASP Page 2') using POST method. But on ASP page 2 when we try to get Form's hidden variable via Request object, sometimes we get them correctly but sometimes they are blank. Generally, first or second time, they show some values but after that they go blank. This problem is seen in IE 7 only and has not been observed in any other version of IE or other browsers.
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Aug 27, 2010
<asp:hyperlinkfield
datatextfield="fldfsl"
datanavigateurlfields="fldfsl"
datanavigateurlformatstring="website1.aspx?para1=dtersaga"
/>
that works like predicted when i declare the variable for para1 but i need it to read the fldfsl and pull that and put it behind para1= like this (but does not work)
<asp:hyperlinkfield
datatextfield="fldfsl"
datanavigateurlfields="fldfsl"
datanavigateurlformatstring="website1.aspx?para1=fldfsl"
/>
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Jul 14, 2010
I'm evaluating two options of accessing a server side data on client side. Little bit confused about the efficiency or may be you can call it as finding best approach to do it.
I need to access a server side data may be an integer value in javascript on client side. I know about two options to do it.Create a public variable or property on server side and set it to javascript variable on client side as below:
var value = eval(<% =value %>);
Create a asp hidden variable and set value in this hidden variable from server side and access it through javascript using document.getElementById().
Which is the best approach and what are the pros and cons?
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Jun 8, 2010
I have an application that goes through a series of questions and I have a view that shows each question based on the ViewData.
I would like to store the QuestionID (the view uses this to determine which question to show), but I'm curious if I should be storing the CurrentQuestionID in the Session or as a hidden field?
I am sure this is pretty common and I was curious what the conventions/best practices were for this sort of thing.
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Jun 26, 2010
Question. Say for example if i have a business entity -> Customer, which has customerId, customerName and customerType. I have created an asp:Hidden Variable hdnCustomer to runat="server"
If i wanted to serialize the value of the customer business entity (in the code behind) to the hdnCustomer then how would i do that?
// Psudo code
Collection customerList = new Collection();
customerList = BusinessAccess.GetCustomerList();
hdnCustomer = serialize and assign the value of 'customerList' to hdnCustomer;
...
...
// Later on a select index change of one of the drop down lists
inside the event handler for the drop down list
{
Collection customerList = new Collection();
customerList = deserialize the value from hdnCustomer
int a = Convert.ToInt32(ddlDropDown.SelectedValue);
foreach(a in customerList)
{
// Do something
}
}
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Feb 22, 2010
I would love to use hidden field value but I think I am missing something to do.
Since every page refresh or staying a little bir longer on the page, the value is missing.
[URL]
How can i do the this cookiles suff above...?
I use hidden value to keep the url to redirect to next page. May be i sould not keen on using hidden value, session variables are better?
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Jan 13, 2011
In my base class:
[code]....
In my user control that inherits from BaseUsercontrol The ascx has:
<asp:Button id="btnTest" runat="server" OnClick="OnButtonClick" />
Why can't I use the hidden input variable this way?
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Jan 24, 2011
I am using ASP.NET 2.0 and C#. I have a gridview, which has a datanavigateurlformatstring, in which i am passing data in the gridview as querystrings.I have a hiddenvariable in the page. i would like to pass the hidden variable to the gridview in the datanavigateurlformatstring.Currently i have the gridview and hidden variable like this:
[Code]....
How to pass the hiddenfield value in the datanavigateurlformatstring?
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Feb 25, 2012
I have a textbox where data will be entered by user without any postback. I need to add the data to a variable or any hidden variable or i need to store data from all the controls on th epage in which user entered to a variable this controls in which user enters the data becomes visible on button click i mean a post back happen...
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Jun 2, 2010
I have a form which a user can fill in x times with the data they want too. The form is posted to the following Action.
[HttpPost]
public ActionResult Manage(ProductOptionModel DataToAdd)
{
if (!ModelState.IsValid)
{
return View(DataToAdd);
}
var ProdServ = new ProductService();
if (DataToAdd.ID != 0)
{
//Edit Mode.
DataToAdd = ProdServ.EditProductOption(DataToAdd);
ViewData["Message"] = "Option Changes Made";
}else
{
//Add
DataToAdd = ProdServ.AddProductOption(DataToAdd);
ViewData["Message"] = "New Option Added";
}
var RetModel = new ProductOptionModel() {ProductID = DataToAdd.ProductID};
return View(RetModel);
}
So at the bottom I blank the model (Leaving just the required field) and then return to the view. However the view holds the data from the previously submitted form. I have debugged the code and checked that the RetModel variable is empty.
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Jun 1, 2010
I have a hidden field (hfUnsaved)in my child page . On keypress of my textbox i am setting the value into the hiddenfield using the following javascript function
[Code]....
On load: txtProject.Attributes.Add("onkeypress", "return Click('a');");
On button click i am removing the value from hidden field as follows:
[Code].....................
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Aug 18, 2010
Wondering if it is possible to access a master page's hidden field (ex. <Input Type="Hidden" ID="TestHiddenField" Value="testValue"/>) From a Content Page's C# Pack CS Page.If it is possible, How do I go about doing so? I have tried:
PreviousPage.Master.FindControl("[TestHiddenField]") but no .Value attribute and no luck in general.
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Aug 16, 2010
In my ASP.NET main page I have one hidden field and and one button. When the user clicks the button I am showing the pop up (child page). I need to access a Hidden field while the pop up is loading. How could I access the Hidden field using c#?
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Aug 31, 2010
I have a project which is developed by using VS 2003 with Framework 1.0.My project works very well while I am testing it on localhost.But 'sometimes' my application will appear blank page after click a save button in the production side(using IE 7).I set 'Try catch' into server codes to detect any error caused after users click save button. And they never see any error description page but 'sometimes' blank page.So I assume my server codes are safe.
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Mar 2, 2011
I would like to create a completely blank aspx page, but I can't figure out how. When I open up Visual Web Developer 2010 Express, and I go to File -> New Web Site, I have a few options. When I choose the ASP.NET Empty Web Site, it does not give me any tools in the Toolbox on the left, so this is no good. But when I choose ASP.NET Web Site, it gives me this template and all of this other stuff. I dont need this 'Welcome to ASP.NET!' template. I'm thinking that I need to choose the Empty Web Site and then Add New Item, but what item? I'm lost!
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Sep 8, 2010
I have created master page in my application using site map and have some web forms. When I click a link from site map I would like to open in blank page like popup window. How can I do that ?
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Jun 1, 2010
I'm developing an ASP.NET (C#) application using EPiServer CMS 5. On the startpage we have four WebPart-zones and everything works great running it through Visual Studio. When publishing it to the production-server (IIS 7) the startpage shows as a blank page, no error what so ever...
When we remove these lines of code it works, so it has something to do with the WebParts.
<WebParts:ExtendedWebPartManager ID="WebPartsManager" runat="server"></WebParts:ExtendedWebPartManager>
<WebParts:ExtendedWebPartZone WebPartProperty="WebPartZone1" runat="server" ID="WebPartZone1" PartChromeType="None" AllowLayoutChange="false" Padding="0" PartChromePadding="0" Width="100%"></WebParts:ExtendedWebPartZone>
<WebParts:ExtendedWebPartZone WebPartProperty="WebPartZone2" runat="server" ID="WebPartZone2" PartChromeType="None" AllowLayoutChange="false" Padding="0" PartChromePadding="0" Width="100%"></WebParts:ExtendedWebPartZone>
<WebParts:ExtendedWebPartZone WebPartProperty="WebPartZone3" runat="server" ID="WebPartZone3" PartChromeType="None" AllowLayoutChange="false" Padding="0" PartChromePadding="0" Width="100%"></WebParts:ExtendedWebPartZone>
<WebParts:ExtendedWebPartZone WebPartProperty="WebPartZone4" runat="server" ID="WebPartZone4" PartChromeType="None" AllowLayoutChange="false" Padding="0" PartChromePadding="0" Width="100%"></WebParts:ExtendedWebPartZone>
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Mar 2, 2011
Ok so I am trying to setup a WCF web service. I thought I had my .svc and webConfig ready to go, but when I hit this service all I get is a blank page.
[Code]....
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Feb 20, 2010
Formview1 is databound to SQLSource that has a while condition. this while condition has a term which is a control in my page set by user. The problem is when there is no match (between users' value and database) the page *becomes blank*
i want the controls of my formview and rest of the page to still be available
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May 28, 2010
I am getting blank page after deploying the blog engine on Main Production server.
Same application is running smooth on my local system
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Feb 11, 2011
I am calling a report from my ASP web app and was working perfectly, but now for some reason the report is coming up as blank and only shows the header section where it shows export, page numbers etc...The report works 100% direclty from reports and reportsmanager but not from my application - there are no errors to even guide me to solving it.At first i had reporting services 2005 and was having this problem and then i installed Reporting services 2008 and hosted the report on there but i am still getting the same problem.....very frustrating!!Does anyone have any idea what could be causing this??
This might be a clue: this app is on my clients pc and i installed VS2010 on the pc so i can try troubleshoot this but when i open the app VS2010 tells me it is setup to use framework 2.0, strange cause before this problem i opened it in vs2010 and was in framwework 4.0 - but now ifi go to the build dropdown it does not give me the option to select framework 4.0 - just goes up to 3.5??the app was originally created in VS2005 then I upgraded it to vs2010.........it could be possible that there is aconflict with the report viewer on the webpage conflicting somewhere???the app still works 100%(except for reporting) on IIS using framework 4.0 so it is still on the PC..please help - my client is unable to use the app without the printing and i am getting desperate!!Here are the hardware and software details:
-Windows 7 Pro
-IIS 7
-framework 2, 3.5 and 4
-ASP.net 4 Web app developed in VS2010
-DB on SQL 2005 exp adv
-also have SQL2008 exp adv installed
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Jul 5, 2010
I'm having problems using an IHttpHandler on PDF files.
I'm redirecting "*.pdf" in <httpHandlers> of web.config to a IHttpHandler class that blocks access unless the user is authenticated.
Code:
<add verb="*" path="*.pdf" type="Handler.Class, Handler.Dll.Name" />
I have no problems accessing any PDF file from firefox while authenticated, but when accessing using any other browser (chrome/safari/opera) I only get a blank page appearing with no content. Accessing the PDF files from other computers gets the same result (blank page) including firefox on other computers.
Contents of the IHttpHandler:
C# Code:
[code]....
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May 19, 2010
Recently I had migrated my ASP.net 1.1 based application from a IIS5.1 based platform to a IIS 6.0 based Platform.The new platform has 4 nodes with a load balancer.
One of the page of my application, which is perhaps the heaviest one in terms of form components like textboxes, dropdown is not behaving properly.Some times the users only get a "Blank White Screen" and some time they get a "Invalid ViewState" , Invalid length for a Base-64 char array.
Based on the KB
http://support.microsoft.com/kb/831150 I understand that the view state is getting truncated.
I had been facing this issue since we migrated to the new platform and the application was working perfectly fine on the old platform.
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Sep 1, 2010
I'm trying to insert few values to a table, when i press the submit button the aspx page goes blank and i don't get any error message. I'm not able to find where the error is.
The code:
Protected Sub AddMInfo_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles AddMInfo.Click
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Jan 10, 2011
I have been building web apps for a while now and still do not know the answer to this.
I have just built a web app (using webforms) which has a page for inserting a new budget request and a page to edit and manage this budget request.
What is a pain is if I have to make changes to the business logic then I need to edit same / similar code in two places.
What I am thinking of doing is creating one page to handle this with only UPDATE logic and if the URL on page load has no ID parameter then create a blank row in table and use this new ID and then UPDATE.
Is this bad practice? I obv know I need to clear out old blank rows at some point.
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