I need to pass variables from a script to another with POST , Not GET , and without a form ( i must do it literally )
there is the Response.AddHeader(name,value) function
then the response.redirect
But then i think the variable field has no name ( after the content lenght header ).
I 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]....
I know how to retrieve a GET object with Request.Querystring("objname"), but how do I receive POST variables using the Request object, or somehow through the code?
View 2 RepliesI'm fairly new to MVC and admittedly don't fully understand how data is passed between Views and Controllers. That said, here is my issue.
I am working with C#. I have a page which has a list of items. Each item has a radio button set of three associated with it and there are 15 of these sets on the page. Thus I have radio1, radio2....radio15, etc. Each of these has value 0, 1, or 2 upon submit. I can't seem to understand how to get the information out of these radio button sets from the controller without passing 15 different variables to the post method in the controller which is associated with the view; ie passing Int32 radio1, Int32
radio2,.., Int32 radio15, etc.
I tried using ViewData["radio"+i] in a loop to access the value of each radio button set, but this, apparently can only be used to pass data to the View from the Controller and not the other way around.
I'm trying to submit form data with jQuery. I'm using ASP.NET WebMatrix. In a .cshtml file I have
@{
// other code
if(IsPost)[code]....
How can I pass values from form to Request.Form object? And how can I than response with json back to html?
I'm passing several variables thru the URL and want to use them in several SQL Queries that I want in my asp page. For example one of the (hypotetichal) is client_id and i want to use it in a query to gather other information.
View 1 RepliesI am following the tutorial on the webmatrix site (http://www.microsoft.com/web/post/web/post/Web-Development-101-Part-6-Creating-an-Add-Data-page). Ifinished creating the AddMovie.cshtml page, but when I try to execute it, I get the following exceptionAn SqlCeParameter with ParameterName '3' is not contained by this SqlCeParameterCollection.Description: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.
View 1 RepliesI have gotten alot of help lately on my project and think I only have one more issue that I can't think of how to do. What i'd like to do is pass a login name and password from a Login.asp page to all of my other pages. So for instance if I have a successful login, I am taken to the Home.asp page. But i'm not sure how I can pass the LoginID used from Login.asp to the Home page. Ideally i'd like to use this information in the SQL connection strings, and to customize the Home page to show orders assigned to certain people that are logged in.
View 22 RepliesI'm trying to pass some variables from one page to another via the session state and then post those variables to labels on page 2. When I try to write the code for my labels on page2, I get an error of "Declaration expected"Here is my code from that page:
Partial Class Default2
Inherits System.Web.UI.Page
Dim firstname As String = CType(Session.Item("FirstName"), String)
[code]...
Am I missing a page_load event handler or what am I missing?
I have a search page which generates a GridView of results based on the search terms entered by the user. One of the columns in GridView is called a DOI (Document Object Itentifier). This DOI is used to find academic papers through [URL] when a user enters a DOI string. What I would like to do is redirect the user to the relevant webpage when they have selected the DOI in the GridView, however, the url for this page is always different. In the page, I have formatted the form tag like so: [URL] and in my GridView, I have formatted the row that I wish to have hyperlinked like so:
<asp:ButtonField DataTextField="DOI" HeaderText="DOI" CommandName="d"/>
Then, in my C# codebehind, I have the following event which aims to redirect the user to the required page, based on the tag they have selected:
switch (e.CommandName)
{
case "d":
searchResult.Attributes.Add("onchange", "window.open [URL]
break;
}
I don't think this code above makes any difference though as the form tag is already specifying the redirected url, nor do I think this task can be done with a html <table> object, as it only accepts static data, rather than a result set generated from a database, which is what I'm doing. I have also looked at the following post as a guide to this type of problem but, taking account of what it said didn't allow me to solve this problem completely. GridView with DDL and selected value
Function RenderTips(ByRef passTipName As String, ByRef passYear As String, ByRef passTipNumber As String) As String
View 10 RepliesIm having problems passing a variable from my c# code behind into my asp as part of a connection string. how do i go about passing in a variable from my code behind into my asp.
View 4 RepliesI am writing what i will call a survey system. The surveys will consist of a series of questions, split into sections. The survey definitions will be stored in a database. The questions can be of various types, that have different input methods and validation (e.g.textbox, numeric textbox, selectlist etc.) I am creating a set of user controls that map to different question types. I would like to completely abstract the survey rendering logic from the, survey definition logic. The way i thought i would do this is to use a dumb rendering control that simply takes a collection of controls and renders them out in a for each loop a super simplified version of what I am doing.
private void RenderControls()
{
foreach (UserControl CurrentControl in this.ControlsToRender)
{
MyPlaceholder.Controls.Add(CurrentControl)
}
}
This works in the sense that the correct controls get added to the place holder,however nothing renders. Presumably this is because it does not have the markup in the asxc file.
If i do something like this
private void RenderControls()
{
foreach (UserControl CurrentControl in this.ControlsToRender)
{
MyPlaceholder.Controls.Add(this.LoadControl("path to ascx file")
}
}
It will create the correct number of controls, but i don't want to instantiate the controls here because i would need to to set various properties based on cconditional logic i want to abstract away from this pure rendering layer.
what i want to do is instantiate the controls else where, set the relevant properties and then simply pass a collection of these into the rendering control to render out.
Is there a way to do this with user controls? Would i have to create custom controls instead?
I am trying to pass multiple variables between pages....
Page1.aspx (sending page)
Dim StrValue1 As String
Dim StrValue2 As String
StrValue1='ASSIGN A VALUE......
This does not work correctly. Page2.aspx is recieveing Value1 correctly but not Value2. I dont think I have the correct syntax...
Have tried the redirect with an ampersand in the middle but that does not work either...
Response.Redirect("Page2.aspx?Value1=" & Value1 & "&?Value2=" & Value2)
I have four textbox and a button in my page. After filling the textbox. When the user click save button. A loading image should be displayed. User should not feel that the page is postback to the server,Some thing like in facebook loading image.
View 5 RepliesVS2010/VB/ASP.NET 4.0 If an error occurs in an ASP app you can redirect it to a default page which is defined in the web.config file How can you pass the variables (URL) to the error webpage then to a logfile or sent via an e-mail address?
Example: 404 Error
- Page hosting the link
- URL
- Search (if applicable)
I have an asp:hyperlink that links to an iframe. I have set the navigateUrl to the iframe page would also like to pass a variable through to the iframe depending on what button is clicked.
View 1 RepliesI am attempting to call a RESTful service using an HttpWebRequest object via POST. I am attempting to pass 1 variable with the Request body which contains a url encoded string. I see the request when it hits the server; however, it shows 2 form variables. The first is Form[null] and the second is my variable.I am attempting to locate the source of this NULL key; however, I cannot. Any ideas on how I may be able to remedy this since it's throwing issues when I attempt to use it with the Nancy web framework for .Net.
Code:
var request = WebRequest.Create("http://localhost:8888/RouteName") as HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";[code]...
I need to access post and get variables inside a server control class, there is no access to Request object in server control class...
View 1 Replieswith a problem im having or at least give me an idea about which direction i should be going in.I have an asax file - with the following void Session_Start(object sender, EventArgs e)in that I am storing a session which holds a boolean.This boolean holds a flag which when set to true tells the application to go to the database and retrieve data, if its set to false, it checks the information in memory.I am using master pages and inside my master page i have and ascx files - which holds my navigation items(I build the navigation menu based on certain criteria)on a content page (a page that uses the master page) I perform a function when a button is clicked and I set the session flag to truethe problem is that the flag is not being checked until i refresh the page twice and therefore the menu is not updating until the user clicks to another page.my suspicion is that it is because of the page life cycle (the event handlers are done AFTER page load) - is there anyway around this?Is there any web page links you have got that I cant google? (yes i have googled but to little luck - maybe im using the wrong search term).on an additional note im trying to avoid like the plague - storing anything in the viewstate
View 9 RepliesIs there a way to assign/pass/copy a javascript variable to a server side variable in C#? For the sake of argument, let's say that I was able to parse some JSON for variables that I want to store and assign them on the client (ie. var = FirstName and var = 25 and var = someDateTime, etc) .
View 4 RepliesI am having troubles making the code run. I have a web page with a gridview and a checkbox. I would like the button when selected to pass the category id. I have managed to get it work without paging. Once the paging kicks in see below, I am unable to run the code. see below.
In the design: ASPX
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html xmlns="[URL]">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
BorderStyle="Solid" CellPadding="4" DataKeyNames="Categoryid"
BorderColor="Silver" BorderWidth="1px" Width="300px"
DataSourceID="SqlDataSource1" AllowPaging="True" PageSize="3" OnPageIndexChanging="GridView1_PageIndexChanging">
<Columns>
<asp:BoundField DataField="Categoryid" HeaderText="Categoryid"
InsertVisible="False" ReadOnly="True" SortExpression="Categoryid" />
<asp:BoundField DataField="Category" HeaderText="Category"
SortExpression="Category" />
<asp:TemplateField HeaderText="Categories" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:CheckBox ID="chk1" runat="server"
Text='1' />
</ItemTemplate>
<HeaderStyle HorizontalAlign="Left"></HeaderStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="Hidden" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:HiddenField ID="hiddenCatIDs" runat="server" />
</ItemTemplate>
<HeaderStyle HorizontalAlign="Left"></HeaderStyle>
</asp:TemplateField>
</Columns> <HeaderStyle HorizontalAlign="Left" BackColor="#f0f0f0" />
<PagerSettings PageButtonCount="3" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [Categoryid], [Category] FROM [Category]">
</asp:SqlDataSource>
</div>
<asp:Button ID="Button1" runat="server" Text="Button" />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<div>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
In the ASPX.VB
[Code]....
I am designing a page for my students to practice their Latin vocabulary. I am having two problems with the design: 1) working with checkboxes, and 2) display one returned row at a time. 1) First, students select from CheckListBox1 those parts of speech (nouns, verbs, adjectives, etc.) they want to review, and then they click Button1 ("Submit"), which fires off a SELECT statement against a table named CoreVocab in a SQLEXPRESS database. How do I pass each selected part of speech from CheckListBox1 as a variable into the WHERE statement when the user clicks Button1? Do I place this code in the Button1_Click on the .cs page?
2) the table returns the first row and Button1 changes to "Next," which the student then clicks to see the next Latin word. How do I get the Repeater table to show only one row at time until the Next button is clicked? And how do I get the same button to executed two functions (fire off the SELECT statement and then show the next row)? For what it's worth, I'm using the SqlDataReader command, since data will only be retrieved, not modified.
I have an app which has a form that used to use AutoPostBack rigged controls (dropdowns, radiobuttons etc.) in an updatepanel, and I used to set session values on each postback. I posted the form using PostBackUrl to an external page, using a bit of javascript OnClientClick to copy my data into meaningfully named hidden fields.
Now, I've had to rewrite the AutoPostBack-ing controls so that all the cascading dropdown work and date calculation etc. is done in JavaScript, and not in C# - no more postbacks, no more updatepanel.
This means I've lost the ability to set my session values on postback. Can anyone think of a solution for setting these before I post my form? I need to set the session variables, plus post (querystrings are not an option) to the external page with the values from my form - and actually send the user to the external page, too.
I have a SQL Server 2000 table that has an insert trigger that e-mails the user when a record is inserted for them. i want to include a link to a page that will disply a list (datagrid) of their records only. What is the best way to do this? The trigger is already completed and currently includes a link that displays all records but I want to be able to narrow that based on the user.
View 1 Replies
