I have a situation where in I am adding .js file to my aspx page using content place holder.
I need to add all the js to end of the page(the said content place holder is at bottom of the master page)
Here's the code for the same
ContentPlaceHolder content = (ContentPlaceHolder)Page.Master.FindControl("additionalJavaScript");
content.Controls.Add(new DeferedMinifiedScript("~/Scripts/Controls/ListBoxControl.js"));
Now the issue is I need to add the ListBoxControl.js file only once on the page.
But this is adding the file everytime a new listbox control is rendered on the page.
I need to put a check in place to see if the file is already available as control on page then skip adding it again.
I tried the following
var abc = new DeferedMinifiedScript("~/Scripts/Controls/ListBoxControl.js");
if(content.Controls.Contains(abc))
{
//Don't add the file again.
}
But this is still adding the file again and again.
Is there a way out?
Also, I can't use RegisterClientScriptInclude or similar functions
You should be able to use this:
https://msdn.microsoft.com/en-us/library/system.windows.controls.contentcontrol.content(v=vs.110).aspx
and Set the contents to a string and then use string to compare to see if it contains your .js string/path to file, then if it does do not do.
Related
I am creating a program that allows users to create there own stylesheets and save them. What i want to know, is it possible to load the stylesheet back into the program and display its contents in a textbox. I only need to know how to display its contents.
Thanks to all who look
...load the stylesheet back into the program and display its contents
in a textbox.
The basic logic is:
txtCss.Text = File.ReadAllText("Path to CSS file")
Regards how you set the path, you can either use a physical path eg
"C:\CssFiles\Files1.css"
Or you could use a virtual path in your site using Server.MapPath eg
string filePath = Server.MapPath("~/files/css/file1.css")
Yes, it's possible. If you provide an textfield element on your page where the user defines his stylesheet, you can simply take the text in the texfield when the page posts back and save it on the server side and do whatever you need to it.
If the stylesheet is created outside your web page, you can simply provide a way for the user to upload it via the FileUpload control
If I'm writing an ASCX control, and that control has markup that requires CSS, and that CSS will only be used by the control itself, is there an elegant way (besides just sticking it in the ASCX file itself) to include the .css file with it?
Ideally, I'd have control.ascx, control.ascx.cs, control.js, and control.css all as a little "package".
It brings up one problem and one concern so far:
Problem: Since the control is in a subdirectory, I don't want to use a tag hardcoded with the knoweldge that the css is in a subfolder. I'd like to write it so that it's relative to the control code (ie: same folder) but still be found at runtime.
Concern: If I did this for ten controls, it's ten more server hits I suppose. Maybe ScriptManager or the RadScriptManager or RadStyleSheet manager will magically aggregate them, but its not a showstopper for me either way.
Any ideas on how to solve the relative-path issue?
To get the correct path of your stylesheet relative to the page, call the ResolveClientUrl method of your user control, passing it the path of the stylesheet relative to the control:
HtmlLink link = new HtmlLink();
link.Href = this.ResolveClientUrl("control.css"); // same directory as the control
link.Attributes["type"] = "text/css";
link.Attributes["rel"] = "stylesheet";
this.Page.Header.Controls.Add(link);
Although each stylesheet will result in a separate request, you can mitigate the issue by enabling content expiration for them.
i have made a page in asp.net, i have a costing calculator which has more than 50 fields, dependent on each other, one is the result of previous two and like that, i want my page to be printed in a well manner, and the header of the page which is in master page should not be in print, also the color schemes i want to adjust, let me know the best solution for this which .net provides
Put the content inside <div id="divid">YOUR CONTENT NEEDS TO BE PRINTED</div>
Then call the javascript function on button click which will print the selected area or only html of div. pass the id of div on calling javascript function.
function CallPrint(var strid)
{
var prtContent = document.getElementById(strid);
var WinPrint = window.open('','','letf=10,top=10,width="450",height="250",toolbar=1,scrollbars=1,status=0');
WinPrint.document.write("<html><head><LINK rel=\"stylesheet\" type\"text/css\" href=\"css/print.css\" media=\"print\"><LINK rel=\"stylesheet\" type\"text/css\" href=\"css/print.css\" media=\"screen\"></head><body>");
WinPrint.document.write(prtContent.innerHTML);
WinPrint.document.write("</body></html>");
WinPrint.document.close();
WinPrint.focus();
WinPrint.print();
WinPrint.close();
return false;
}
Call CallPrint('DivGrid');" on onclick() of button or use below: but.Attributes.Add("OnClick", "return CallPrint('DivGrid');");
Nothing to do with .Net and everything to do with a print stylesheet. You can create a stylesheet which will only work for when the page is printed. And you can change everything from what displays to postion to colours.
Use:
<LINK rel="stylesheet" type"text/css" href="print.css" media="print">
Note media="print" means it'll be used for printed pages.
I know that question has been asked a long time ago, however there is no accepted suggestion. So here my approach for friendly print version when using Master page.
Create an empty master page (PrintVersion.Master) to serv as print version. Add what ever you need to be print (like logos) if anything to that master page.
from your content page, add a print link with target blank. Make the href to load the current page. From the href add a querystring so you can capture it from your content page preinit event.
From your content page preinit event detect if the querystring to print exists, then specify the blank master page like: MasterPageFile = "~/Ful/Path/of/your/PrintVersion.Master"
Optional, on the PrintVersion.Master on document.ready call: window.print(); The browser print dialog will automatically open.
You can make a new printable page version, which doesn't include a header. This version can also have the layout you need.
My issue is that I have a designer that will create a custom aspx page bu without any .net controls. I need a way of adding the controls dynamically. So far the only types of controls will be textboxes and a button, but there are 30 variations of what the textboxes can be (name, phone #, email, etc). Also the textboxes may or may not need to be required. Once the textboxes are added the form will be submitted to a db.
My first thought was to have the designer place something like [name] and then replace that with a user control that has a name textbox and a required field validator. In order to determine if the validator should be enabled I was thinking that the place holder could look like this, [name;val] or [name;noval]. I could either do replace the place holders in code dynamically or set up a tool that the user pastes their html into a textbox and clicks a button which then spits out the necessary code to create the aspx page.
I'm sure there must be a better way to do this but its a fairly unique problem so I haven't been able to find any alternatives. Does anyone have any ideas?
Thanks,
Kirk
IF your designer gives you html pages, just create a new website. copy and pages all the HTML pages with the Image folders and everything to your project. then for every HTML page create an aspx page, (with the same name) copy and pages the html's tags which are between to the aspx page's and for the body copy and paste HTML page's tags which are between into the of the aspx page.
Now you have your aspx page, exactly the same as html page.
Sounds like an attempt to over-engineer a solution to what should be a non-issue.
As #Alessandro mentioned in a comment above, why can't the designer provide you with pages that have the control markup? As it stands right now, the designer isn't providing you with "a custom aspx" so much as "a custom html page." If the designer is promising ASPX but delivering only HTML, that's a misinterpretation somewhere in the business requirements.
However, even if the designer is rightfully providing only HTML, there shouldn't be a problem with that. At worst, you can set each element you need on the server to runat="server" to access them on the server-side. Or, probably better, would be to simply replace them with the ASPX control markup for the relevant controls.
Write a simple parser that will recognize the [...] tags and replace them with corresponding controls. Its pretty easy to do and i've often done this... the tag i use is usually $$(..); though, but that doesn't matter as long as your parser knows your tags.
Such a parser will consist of a simple state-machine that can be in two states; text-mode or tag-mode. Loop through the whole page-text, char for char. As long as you're in text-mode you keep appending each char into a temporary buffer. As soon as you get into tag-mode you create a LiteralControl with the content of the temporary buffer and add it to the bottom of your Control-tree, and emtpy the buffer.
Now, you still keep adding each char into the buffer, but when you hit text-mode again, you analyze the content of the buffer and create the correct control - could be a simple switch case statement. Add the control to the bottom of your control tree and keep looping through the rest of the chars unto you read the end and keep switching back and forth between text-mode and tag-mode adding LiteralControls and concrete controls.
Simple example of such a parser... written in notepad in 4 minutes, but you should get the idea.
foreach (var c in text)
{
buffer.Append(c);
if (c== '[' && mode == Text)
{
mode = Tag;
Controls.Add(new LiteralControl(buffer));
buffer.Clear();
}
if (c == ']' && mode == Tag)
{
mode = Text;
switch (buffer)
{
case "[name]": Controls.Add(new NameControl());
... the rest of possible tags
}
buffer.Clear();
}
I need to have a button on the master page.
Once that button is clicked I generate a string that represents URL.
test.apx is a content page I use and the string will look like something like this:
Example:
www.blah.com/test.aspx?user=blax&develop=extreme_all
Now all I need is to reload the page while content is redirected to the URL I generated.
I hope this makes more sense.
Thanks guys I am new to asp.net and really appreciate any help
Why dont you use Update Panel?
Have the page postback with the updated query string to change what is in your content area
Assuming your masterpage is set up correctly
within the <asp:content> tag of your aspx page that is using the masterpage you created add code to get the query string
Request.QueryString["key"]
example url: http://www.whatever.com?foo=bar&bar=foo
string tmp = Request.QueryString["foo"]
tmp will become "bar"
Now just check the "postback" option of the asp:control you're using to reload the content page or do whatever you to make the page refresh.
If I understand your question correctly, you want to reuse the same code to parse out your user and develop variables from different content pages that use the same master page.
It sounds like you need a strongly typed master page.
First, put your shared code in your master page. Then, expose the parsed data as properties of the master page. Next, simply add the following directive in your content pages:
<%# MasterType VirtualPath="~/mymasterpage.master" %>
Finally, in your content pages, you can reference your properties as such (assuming you created a property called MyUser):
string user = this.Master.MyUser;
You can also use inheritance if you want a different approach. Simply create class that inherits from Page. Then put your shared code in that class. Finally, make your content pages inherit from your new class, instead of Page.