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Hello,
I am writing an engine for a forum. Now I have stumbled upon some problems with caching. I have a board view with multiple threads printed and each
one has a first few replies added. Now I decided I want to have caching not based on timeout but on custom action. When a user uploads some reply, only
then should the page expire from cache. It is also desirable to expire only those versions of pages that need to be expred (based on query string parameters).
let's say I have this situation:
so http://forum/index.aspx?page=1 cached
so http://forum/index.aspx?page=2 cached
so http://forum/index.aspx?page=3 cached
so http://forum/index.aspx?page=4 cached -> reply happes
so http://forum/index.aspx?page=5 cached
so http://forum/index.aspx?page=6 cached
.. pages 1 - 4 must expire from cache. The rest should stay in cache. Also I do not want any of the pages to expire from the cache before this action
for whatever reason this could happen. Please help me with this.
for now I have written in page load of index.aspx this:
1) in global.asax, Application_Start:
HttpRuntime.Cache.Insert("all", DateTime.Now);
2) and in my index.aspx page load event this:
Response.AddCacheItemDependency("all");
Response.Cache.SetCacheability(HttpCacheability.ServerAndNoCache);
Response.Cache.SetExpires(DateTime.Now.AddMinutes(5));
Response.Cache.SetValidUntilExpires(true);
//Response.Cache.VaryByParams["page"] = true;
3) then if I want to reset all pages dependend on key all, I call index.aspx with query string parameter ccreset and again
in global.asax Application_BeginRequest I check for this query string parameter and modify key all to invalidate cache like this:
HttpRuntime.Cache.Remove("all");
PROBLEMS
________
A) Even without trying to invalidate my cache, page output caching occurs only if I do not specify VaryByParams. As fast as I add this line of code:
Response.Cache.VaryByParams["page"] = true;
caching stops. I print a timestamp on the page to see this. I do not understand this. Problem is exactly the same if I use the declarative syntax inside
aspx page.
B) Let's say I forget about the VaryByParams, caching works out of the box, time stamps printed on my page confirm this. But, even when I modify the
"all" key in my cache hoping to initiate cache invalidation nothing happens. All pages remain in the cache as nothing happened. Why is that?
QUESTION
_________
I would like to understand why B) happens and also what is up with A). But please, if I should be doing this thigs some other way feel free to skip
answering me my first two questions and just explaing to me what is the easiest and most straight forward way to achieve what I want.
Thank you for your replies in advance
Andrej
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Hi,
After some research, I get this code, and it's pretty much the page I need
<asp:GridView ID="gr" runat="server" GridLines="Horizontal"
AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="bc" HeaderText="Código de Barras" ReadOnly="True" />
<asp:BoundField DataField="produto" HeaderText="Produto" ReadOnly="True" />
<asp:TemplateField HeaderText="Preço Caixa">
<ItemTemplate>
<asp:TextBox ID="txtPC" runat="server" Text='<%# Bind("pc") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
How do I make the SelectedIndexChanging event to get fired without clicking a "edit" button? or any event at all from changing or leavind the txtPC
Thanks,
Dirso.
Thanks,
Dirso
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<asp:GridView OnSelectedIndexChanging="GridViewSelectEventHandler" /> for further help see here[^]
Yusuf
Oh didn't you notice, analogous to square roots, they recently introduced rectangular, circular, and diamond roots to determine the size of the corresponding shapes when given the area. Luc Pattyn[^]
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The problem is that the event is not fired when I press tab or enter, since I didn't click the "Edit" button (I don't even have one).
Thanks,
Dirso
Thanks,
Dirso
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Dirso wrote: The problem is that the event is not fired when I press tab or enter
I don't know if this is possible through asp.net. You may have to write javascript code to handle this situation.
Yusuf
Oh didn't you notice, analogous to square roots, they recently introduced rectangular, circular, and diamond roots to determine the size of the corresponding shapes when given the area. Luc Pattyn[^]
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Hi,
I thought about it actually. But I have no idea how. I could create an onexit event for textbox easily, but how to assign it to the gridview row index?
Thanks,
Dirso.
Thanks,
Dirso
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Hi all.
I'm fairly new to WebServices etc, so go easy on me if this is a really easy question to answer  Also, I hope I posted this in the right section..
We're doing work for a customer of ours for which we consume they're webservices. We want to do some testing in-house here before testing in the production environment, and would like to create a working webservice, using they're WSDL definition.
I've poked around on google, and found some steps to create a web-services proxy, but is this the same thing?
There are quite a few methods in the WSDL, it would be painful to have to define each of them manually.
Any information you could forward, would be helpful.
Hope the Easter bunny was good to everyone.
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Mike Doner wrote: I've poked around on google, and found some steps to create a web-services proxy, but is this the same thing?
You can create proxy using WSDL.exe. Have a look
If you are using Visual studio, you can just simple add the WSDL url as web reference, It will do the rest for you.
cheers,
Abhijit
CodeProject MVP
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Thanks for your reply Abhijit.
I have no problems adding a reference on the client side, its trying to call the methods that brings out the newbie in me.
I successfully ran the WSDL command and it created the .cs file. Now what? Do I create a new webservices project and add this in? When I did this, I could not get the WebService to expose the methods from my imported WSDL, am I missing something?
M.
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Mike Doner wrote: Do I create a new webservices project and add this in?
1. Add web service url as web reference in your web application.
2. Create the object of webservice class.
3. access methods from those object.
hope this wll helps you!!
cheers,
Abhijit
CodeProject MVP
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Hi Abhijit.
My problems are strictly server-side.
I want to emulate an existing server side WebServices implementation. I have the existing WSDL file, and I want to create a similar Server-Side WebServices project to test my client-code.
After that, its gravy..
As I understand web-services and the steps you've provided, this is to create a reference on the client side. Am I misunderstanding?
M.
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I was able to do what I wanted to do by using a tool called SoapUI. This allows you to create a mock-up WebService using the provided WSDL.
Thanks for your help.
Mike.
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i have 2 table in different database and different server, i want select records from one server(e.x. 100 records) and updatethem in other table in the other server. do any body know how is my query?
i dont want use for and update the records one by one
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pass dynamic string to your command object in order to achieve this functionality is it very simple question..
sqlCommandObject.commandtext= connectionstringVariable;
Government Dyal Singh College Lahore.
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i dont understand your mean. sorry
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Your answered is properly given Here
cheers,
Abhijit
CodeProject MVP
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hi
i have to page.in first page there is a form view which contain some controles like textbox.this form view has bind to a objedatasource with 3 methodes select , edit ,insert which has written in a class.
also there is a button in this formviwe in insert mode.
with clicking this button I want to open a new browser window(Opera).in this window there are 2 dropdownlist which with selecting one of them item the previous page (contain a formvie)textboxes fill.
these dropdownlist has bind to a sqldatasource and the table(table of database) of this sqldatasource is the same with the table of that objectdatasource in first page.
I use C# and asp.net 2 for this project
any help would be great.
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Hi!
I am new to C# and asp.net network programming so I hope someone can point me to the right direction in starting what I want to do.
I want to make a web application that would automatically fill-up application forms from websites and automatically submit them. For instance, I want to automatically log-in in all my web accounts on different web pages through a button click in my c# application. I am new to network programming but my initial research tells me to use the http and web service classes to accomplish this. Technically, i would get and parse the IDs of the form components from the websites and post the values plus invoke the 'click' or 'submit' function. I want your comments on this.
Also, i wonder if there are means of updating some visual parameters in an asp.net page such as texts without calling a postback since it slows the application. If I want the interactivity of a windows form application, do i need to make an activeX control or user control and embed it in my asp.net page? Or should I use client-side scripting?
Any answer will be appreciated. Thank you.
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I have a master page. In .aspx page i have set MasterPageFile value to the master page.
In .aspx page i am loading a control(.ascx). While doing this i am getting error
Cannot use a leading .. to exit above the top directory.
I have tried changing paths also(../), but its not working.
Can anyone help me?
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thanks for quick reply.
i have tried this solution also, but still giving the same error
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can you give us the quick overview of folder hierarchy of you application ?
cheers,
Abhijit
CodeProject MVP
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Master page is in root directory.
.aspx page is in folder "A" which is in root. In .aspx page i am loading control(.ascx) which is in folder "B", which is again in root. I am using stylesheet which is also created in root.
To load control, i have written following lines: UC=(UserControl)Pa ge.LoadControl("../Try/TestPage.ascx");
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Hi. I'm storing datetime data in DB in UTC format. now i want to display correct date with daylight saving. can any one help me in this regards?
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