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Just the way internally .NET framework handles it ...
You have to know the way these two happens ..
PostBack Callback
============================ =====================================
A Post request to server Fired by a client side event handler
( Can be made only by a server ( Can be made by a client side
side element.) element)
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Page init Page-Init
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Load the page state Load the page_state
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Prcess the postback data Process Postback data
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Page Load Page Load
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Any Postback event CallBack events( As defined
(Like SelectedIndexChnaged, in ICallBackEventhanler
PageIndexChanged methods executed ) Like RaiseCallBackEvent() method )
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Save the page state |
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Page PreRender |
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Page Render |
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Page Unload Page Unload
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Response Back to the Client Response Back to the Client
As you can see ...
1. Callback can be initited from a client side element.
But Postback can be initiated by a server side element.
2. Internal mechanism is totally different.
3. For callback ICallbackEventHandler must be implemented.
4. Some page state is not there. So it becomes faster that PostBack.
Hope it helps you ...
Arindam
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i want to display more than one treeview on a page but not at a time.
i want all them in a array n want to increment the counter by one of the array.when i submit for first treeview it ii display second but not first with second. means as a quiz. how to call each treeview for each button click
please fast reply
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hi to all,
I m working on control in vb.net. i have updated a site coded in vb.net(Dotnetnuke). It reflecting changes in my pc but when i uploaded it on test site , it does not reflect any changes (i think when i build the solution the .dll file does not updated). Please some one help me to upgrade the .dll or tell me how to create other using the previous one.
Any help will appreciated.
Thanx in advance,
Sachin
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when u make changes in file complie the file do not run the applicaion on ur localhost.n then upload the only .dll file to ur site it ll definetly show the changes made in ur code.
best luck
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hi Diya_Dev
Thanx for reply ,
Pls tell me how to compile only .Dll file. Do u mean only built the solution.
if it , sorry it does not work for me.
Sachin
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why it has to work.
what prob at ur end.
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hi,
I m working on dotnetnuke project.Its my first project . In this project i have done all th updation that client required. In Dotnetnuke all work is done using .ascx pages. And we have to upload only .dll file in zip format. the changes i have made only reflecting on localhost at both end(my and client) but when i upload it on server it does not reflect anything.It means the .dll file that i m uploading does not upgraded . So i just want to know how to upgrade a .dll file.
I think now u get it why i m asking that qustion.
Waiting for early reply.
Sachin
Very[D]
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hi friends ,
i am having class which contains 5 functions in a web application. what i need is , i want to get the status of each functions while debugging (say : function1 is successfully completed, function2 is started debugging ). is it possible if i use a debugger window. can anyone know about any debugger components availabe for the same. im using visual 2005 with ajax.
thanks in advance
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Dear friends,
Can I find time that it is taking to execute a set of statements in .Net. Here I am opening a word document in a browser using aspose library, where I open it by writing some set of statements aspose and .net
And I open it in a different browser by using window.target="_blank". Any way I want to know that, how much time that it is taking to open a new browser and the word document both. I want to calculate that time for better performance of my application. Thank you.
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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trace.axd[^]
only two letters away from being an asset
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Hi Mate,
Trace is indeed a good option.
Here is another way ...
To examine time taken executing a number of statements:Server Side:
====================================================================
<br />
StartTime = Environment.TickCount;<br />
{<br />
}<br />
EndTime = Environment.TickCount;<br />
double executionTime = (double)(EndTime - StartTime) / 1000.0;<br />
<br />
Response.Write(executionTime.ToString());<br />
if you want to see the execution time of the page .. declare StsteTime and EndTime as global variable.
To examine time taken executing a number of statements:Client Side:
====================================================================
var StartTime,EndTime,ExecutionTime;
var d = new Date();
StartTime = d.getTime();
var d2 = new Date();
EndTime = d2.getTime();
ExecutionTime = EndTime - StartTime;
alert(ExecutionTime);// in milliseconds
Arindam
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Hi,
I have to insert 200,000 rows from datatable (from asp.net 2005 webform(vb.net 2005 code behind ) to oracle 10g table.Here if i insert this by row by row then it will not work,so i need some bulk insert from asp.net to oracle.
can anybody suggest some good way to do it.Here we need to take care that as rows are too much large so server or client should not hang.
If some code/link is available then it could be helpful to me.
thanks
montu3377
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Hi ,
Please refer to SqlBulkCopy class in .NET 2.0.I have used this class to insert 1000 rows from ASP.NET to SQL SERVER 2005.I do not know whether it can be used with Oracle or not.So please find out if this class is helpful to you.
Thanks,
vicky
Vicky
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I guess SQLLoader in Oracle 9i is the best option for bulk data insertion.
Arindam
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Hi,
To insert 200,000 records into oracle it's taking around 10 mints time by using Sql loader utility method,so can you pls. suggest some good method which insert records very quickly.
I am using .csv file which containts around 200,000 records.I want to insert that records from asp.net to oracle 10g.
Can you pls. suggest better way to do it.
thanks.
montu3377
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I have to fill a survey form with data from an oracle database.
We debate two ideas: use a dataset object or a XML file.
For XML file I would use forward only method of reading the file and not DOM, faster.
Is it more efficient generating the XML from database and then parsing the XML on the application server then using a data set returned from the database ?
Thank you
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Since this is posted to the ASP.NET forum I'll assume you want to bind the results of your Oracle database query to controls on a webform. In that case a dataset would be the way to go. Using databinding this would be faster and easier than usage an XML file. You could also use XSLT to transform your XML into HTML but depending on your requirements to update or refresh the form it might not be viable.
only two letters away from being an asset
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Hello guys. I am using this sample out on http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/apps/cookies1/cookies1.src&file=CS\Customize.aspx&font=3 to perform some user based changes to the page (such as backgroundColor, font size etc) . It’s working just fine. But the page only updates the info that user selected from the drop down lists, when you click the submit button twice. Do you guys know why this might be happening??? In the button click events handler, this is what I’ve got:
public void btnSubmit_Click(object sender, System.EventArgs e)
{
HttpCookie cookie = new HttpCookie("preferences1");
cookie.Values.Add("ForeColor",ForeColor.SelectedItem.Value);
cookie.Values.Add("BackColor",BackColor.SelectedItem.Value);
cookie.Values.Add("LinkColor",LinkColor.SelectedItem.Value);
cookie.Values.Add("FontSize",FontSize.SelectedItem.Value);
cookie.Values.Add("FontName",FontName.SelectedItem.Value);
Response.AppendCookie(cookie);
if ( ViewState["Referer"] != null )
{
Response.Redirect(ViewState["Referer"].ToString());
}
}
Please check out the actual code sample at the link shown above.
Thanks
Tina
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How do you know that it is updating on clicking the button twices? Is it a Dbl Click??????
Regards,
Venkatesh Mookkan.
Software Engineer, India
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hello there, thanks for the response...well I know because when i click the button once it does not update the colors...when I click it again, then it does it. Isn't that weird? Please help?
-- modified at 0:21 Saturday 30th December, 2006
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Think, its updating the cookie on the first click itself... But the retrieving process is not properly handled... Could you post your code?
Regards,
Venkatesh Mookkan.
Software Engineer, India
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Hi,
I am binding a site map data source to the menu control. Some node titles are very long. I sent the Menu Item width, but some items are still longer than others. Since the menu need to display vertically. That makes the menu look bad. Is there a way to make the menu text wrap automatically?
Any help would be appreciated!
Thanks in advance!
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Did you have the same issue???
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Hi,
Use ItemWrap property of Menu control.
Sandip Kansara
Software Engineer
India.
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