C# - FormView Templates Break When Refactored To Master/Content?
Apr 27, 2010
Let's say I have an abstract class IA, with subclasses A1, A2, A3.For each subclass, I had a page with a FormView to insert/edit/view, with code specific to that class. The templates for insert/edit/view are all very similar, so it was mostly cut & paste, and the compiler had no problem that there were controls with the same IDs in the different templates.Something like this:
<asp:FormView>
<InsertItemTemplate>
<asp:Label id="Label1" />
[code]...
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Nov 30, 2010
I have a FormView control in an ASP.NET page. I use the InsertItemTemplate and EditItemTemplate to provide data manipulation functionality, and it is working very well. I would like to allow the user to "Copy to new" from an existing item. In other words, I want the user to be able to display an item as if they are going to edit it, then, if they click a "Copy to new" button, it will load the information from that item into an "Insert" form so they could just change the bits of data that they want, and insert the new item.
The data objects we are dealing with are fairly large so, providing this functionality will save the user a lot of data entry misery.
I have experimented with copying the existing EditItemTemplate controls in the Copy button's click event, storing them, and writing them to the new InsertItemTemplate controls, once the form is reloaded (in the Page_PreRender event). But this is pretty ugly stuff. There has to be a better/simpler way.
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Mar 3, 2010
I understand that only one FormView template is rendered at any given time, so is it ever a problem to reuse child control IDs?For example, the insert and edit templates are identical in this FormView, each has a TextBox in which a user may enter their name. Would it be a problem (or a bad idea) to give both text boxes the ID "NameTextBox"?Better yet, is there a way I can create a single template that is used in both insert and edit modes? With the same code-behind, event handlers, etc? I found a forum thread somewhere that suggested creating a web user control to use in both insert and edit modes - is this typical?
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Feb 4, 2011
I use the FormView control quite a bit, but I wish I had more control over the default templates.
When I drag a FormView from the toolbox onto my page and point it to a DataSource control it prepopulates the ItemTemplate, EditItemTemplate and InsertItemTemplates, but it doesn't do it very well.
For example, the InsertItemTemplate looks like this by default:
<InsertItemTemplate>
id:
<asp:TextBox ID="IDTextBox" runat="server" Text='<%# Bind("id") %>' />
<br />
Name:
<asp:TextBox ID="NameTextBox" runat="server" Text='<%# Bind("Name") %>' />
...
</InsertItemTemplate>
But what I would prefer is a good old fashioned html table
<InsertItemTemplate>
<table>
<tr>
<td>
id:
</td>
<td>
<asp:TextBox ID="IDTextBox" runat="server" Text='<%# Bind("id") %>' />
</td>
<tr>
...
</table>
</insertItemTemplate>
I know I can use a DetailsView to get a table rendered out, but I end up modifying the form so much that I prefer to use the FormView. It's just that I would like Visual Studio to start me out a bit closer to where I want to end up.
I would imagine that there is a T4 template somewhere in the guts of VS that I might be able to modify to get this done.
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Apr 24, 2010
I find the repetition of sets of controls for each of the EditItemTemplate, InsertItemTemplate, and ItemTemplate templates of a FormView to be tedious and risky, in terms duplicating layout and code etc. I would much rather create a xxxDetails user control, and use this in each template, cutting layout and code location down to one location.
However, this introduces several complexities for data binding scenarios. Are there any extablished patterns or practice guides for using user controls in these scenarios?
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May 18, 2010
I need to create and use asp.net FormView with pager, dynamically from code behind in C#.
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Sep 22, 2010
I have a master page with a textbox that I want to use for a search, and display the results on the content page.
I've dragged in the datasource to the content page, and configured the formview to use that datasource... almost.
The issue I'm having is that on the last step of the configure datasource wizard where you select the parameters, I want to select the master page textbox control for the search parameter... but of course it's not available in the list. The list only allows me to choose controls from the content page.
How do I set this master page search box as the parameter for my datasource?
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Feb 18, 2010
This is probably a dumb question, but I have to ask because I spend so much time editing my formviews and listviews. Is there a way to edit the default template setup for these controls, in the code or somewhere? When you drag them over you get the default text with textbox column names; then I spend over 30 mins editing each to look the way I want it to.
I know I can create standard templates for WebForms and save them as Exported Templates.
And is it possible to edit the default control when you drag them on to the page, to list certain attributes automatically. example (validation controls you always have to add ControltoValidate I would like to drag mine onto the page and it say controltovalidate="" and then all I do is fill in the blank. Intellisense is fine, but sometimes you get brain freeze after hours of web design and forget the needed attribute and you have all to go through all of the errors and mistakes.
The ultimate would be, to drag a FormView Control and when you Refresh the Schema, you get textboxes, label controls instead of text for column name, and divs for forms, and Image Buttons , I am sure there is an XML file that runs the code that you can edit or something.
OR
ASP Developers, When you develop the next ServicePack allow us to edit or create default templates to customize the default templates, in VS and VWD.
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Mar 26, 2010
Is there a way to create only the InsertItemTemplate in the FormView and then assign it to EditItemTemplate. Something like
Page_Load
{
FormView.EditItemTemplate = FormView.InsertItemTemplate;
}
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Mar 29, 2010
to force a table width in Formview control templates? I have created a table in the ItemTemplate that works fine but I can't seem to get the table to fill the entire width of the display area. I tried wrapping the entire FormView
in a div tag and setting the width to 98% but it didn't work either. Aplogies in advance if this has already been asked. I found a lot of references to GirdView (which didn't help) and nothing helpful r/e FormView except the div tag suggestion.
Here is the code I am using for the ItemTemplate (VS 2008, VB [preferred], in a master page):
Sample ItemTemplate
<ItemTemplate>
<table cellspacing="0" style="width:98%;">
<tr>
[code]...
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Feb 13, 2011
I am using a formview on main web page and the Item template displays my data correctly but I get and error when I try and link to the edit or insert templates.This happens on our remote tesing server only.On my local machine running the page on the local server in VS 2010 everything works fine.But then doesn't it always work on your local machine.I might also mention that I am compiling for asp.net 4.0.
Here is the stack trace :
System.Data.SqlClient.SqlException (0x80131904): Login failed for user 'MYCORPABIGWEB01$'. at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
[code]...
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Jan 7, 2011
i am working on a project in which i have to create newsletters. We wish to give user functionality of editing the complete layout ( drag and drop if possible) I am able to achieve drag and drop with web parts but can't customise them much like adding richtext box and saving multiple copies of same page with different layouts. I then wish to enable user to send the html only part of page which contains dynamic layout.
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Dec 14, 2010
In ASP.NET 4.0, I have an IHttpModule that apply a filter on HttpRequest.Filter. As the result, the content stream length is changed, and it breaks WCF with now returns 400 bad request because of the mismatch between the body length and the HTTP headers.
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Sep 10, 2010
I would like to ask if it is possible to access data on a master FormView from a nested detail FormView.
I have a main form (master) with several tabs (detail) and would like to display a label with text from main form that is hidden by the tab at the moment of editting. My asp page looks like this.
[Code]....
Is it possible to get the value of the label CompanyTextLabel from CompanyTextBox using just ASP.NET expressions or something similar without writing c# code in .cs file?
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Oct 5, 2010
The WorldPay payment gateway suggests using this HTML to take the customer to the payment page:
<form action="https://select-test.wp3.rbsworldpay.com/wcc/purchase" name="BuyForm" method="POST">
<input type="hidden" name="instId" value="211616">
<input type="hidden" name="cartId" value="abc123">
<input type="hidden" name="currency" value="GBP">
<input type="hidden" name="amount" value="0">
<input type="hidden" name="desc" value="">
<input type="hidden" name="testMode" value="100">
<input type="submit" value="To Payment!">
</form>
How to I put this form on my page? The problem is I have a master page which wraps the content pages content in the ASP.net form, I can't nest the forms.
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Oct 17, 2010
how can i add title and meta tags for content pages in a project base on master and content page(dinamically) ?
i used the blow method for master page :
[code]....
and the error is :(in line *)
Error 17 'System.Web.UI.MasterPage' does not contain a definition for 'SetMetaTags' and no extension method 'SetMetaTags' accepting a first argument of type 'System.Web.UI.MasterPage' could be found (are you missing a using directive or an assembly reference?)
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Sep 9, 2010
I am really surprised that there is no native .NET method to get an absolute url from a relative url. I know this has been discussed many times, but never have come across a satisfactory method that handles this well. I think all I need left is to auto choose the protocol instead of hard coding it (http/https). Anything else I am missing (caveats, performance, etc)?
public static string GetAbsoluteUrl(string url)
{
//VALIDATE INPUT FOR ALREADY ABSOLUTE URL
if (url.StartsWith("http://", StringComparison.OrdinalIgnoreCase) || url.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
{
return url;
}
//GET PAGE REFERENCE FOR CONTEXT PROCESSING
Page page = HttpContext.Current.Handler as Page;
//RESOLVE PATH FOR APPLICATION BEFORE PROCESSING
if (url.StartsWith("~/"))
{
url = page.ResolveUrl(url);
}
//BUILD AND RETURN ABSOLUTE URL
return "http://" + page.Request.ServerVariables["SERVER_NAME"] + "/" + url.TrimStart('/');
}
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Apr 9, 2010
I'm attempting to set a class on the body tag in my asp.net site which uses a master page and content web forms. I simply want to be able to do this by adding a bodycssclass property (see below) to the content web form page directive.
It works through the solution below but when i attempt to view Default.aspx the Content1 control loses its content.
Here is how I'm doing it. I have a master page with the following content:
[code]....
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Mar 15, 2011
One of my apps is to document aircraft inspection at mil sites. The discrepancy report for any one tail number can be many pages long. The description of the discrepancy in a gridview cell can be several lines. Therefore when the gridview hits the bottom of the physical page, the print spooler frequently splits the gridview row leaving part on one page and the rest at the top of the following page. I have done my due-diligence in research before posting but maybe I'm using the wrong words. I found something on CodeProject but it is too complicated for me. Does anyone have a simple solution? I use C# and am not very sharp with Java script.
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Feb 1, 2011
i am using two tables for salary components like bonus,hra,ta,da.one is salary lookup table for viewing which components are chosen and according to this salary table is created dynamically.i want to view data fields of salary table in gridview and update thier value.
now problem is that how to create template field and edit template field for updating fields of salary table because field of the salary table changing every time as it is creating dynamically.
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Apr 26, 2010
I have recently found this snippet of code but I am unable to get it to work. Does anybody know if the $index syntax has changed in the latest version of the client templates?
[Code]....
I keep recieving $index is undefined.
The offending line is
[Code]....
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Oct 21, 2010
Using Visual Web Developer 2010 Express. I was used to creating a web app anytime and I would get a default page for starters and be happy. But today I find that when I pick either the ASP.NET Web Site or ASP.NET Web Application templates I get site.master and a bunch of site admin files that I don't want. Alternately when I select the empty versions of those templates, I get almost nothing at all. An almost empty web.config page and no Default.aspx page. There is nothing magical about having a default.aspx page in place, but it is an indicator of a change when I can only get a virtually completely empty website or a website with a bunch of bells and whistles I don't want.
Also, for some reason, when I create a new app or website as just noted, in the Solution Explorer I get aspx.designer.cs files showing as well as web.config files for both debug and release. Somehow some settings and templates must have changed, or am I missing something here? How can I get my settings/templates to go back to the way they were?
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Jun 25, 2010
which page need to be checked. Master or Content. I dont think there is anything wrong in the content page.
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Apr 19, 2010
I have over 300 content pages to create. Each has some standard styling. I would like to generate these pages, and was just wondering if there is a utility in web developer 2008 express to do so (otherwise I will just build one - but it would be great not having to do so!)
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Mar 10, 2016
Can I ask what this error refers to, (I have had it twice now over the last couple of days and then it goes away):
System.Web.HttpException: Content controls are allowed only in content page that references a master page.
This is followed by Stack Trace:
[HttpException (0x80004005): Content controls are allowed only in content page that references a master page.]
System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +9744256
System.Web.UI.Page.get_Master() +55
System.Web.UI.Page.ApplyMasterPage() +14
System.Web.UI.Page.PerformPreInit() +51
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1104
I am not using any Content Place Holder or Master Page (does the error refer to the Site.Master file because while I can see it in. Solution Explorer, I never use it. All of my aspx files look like this along the top with no reference to Site.Master:
Code:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="register1.aspx.vb" Inherits="register1" %>
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