ASP.NET

4-Oct-07 21:37

i want a refresh button on my page.how can i code for this button?

Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1

Christian Graus4-Oct-07 21:57

4-Oct-07 21:57

Wow - do you own any books on ASP.NET, or web development ?

Any ASP.NET button will do a refresh, if it's set to do a postback. You can also do it in javascript and HTML.

http://www.google.com.au/search?sourceid=navclient&ie=UTF-8&rlz=1T4ADBS_enAU225AU226&q=javascript+refresh[^]

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Urs Enzler4-Oct-07 22:26

Urs Enzler

4-Oct-07 22:26

But there is a difference between a Postback and a first call to a page.
And a refresh is the latter for me, though it's hard to say what a click on the browser refresh will do because it will send the last request again (postback or not).

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Christian Graus4-Oct-07 23:24

4-Oct-07 23:24

A refresh will always refresh the last call made, otherwise how can it refresh page state. The way around this is to never show a postback, for a postback to redirect to the same page with URL parameters the restore state. Then a refresh will go to this page, and the page can be written so this performs no actions, it just shows the same state.

The other option is to have a button that links back to the page, which will not postback, but will lose any state derived from postbacks that have occurred.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Spunky Coder4-Oct-07 21:57

Spunky Coder

4-Oct-07 21:57

In the button click event of the Refresh button place the following code

protected void Button1_Click(object sender, EventArgs e)
{
Page.Response.Redirect(Page.Request.Url.ToString(), true);
}

Koushik

Sonia Gupta4-Oct-07 22:00

4-Oct-07 22:00

u know it's answer?
http://www.codeproject.com/script/comments/forums.asp?msg=2258348&forumid=1725#xx2258348xx[^]

Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1

Christian Graus4-Oct-07 22:01

4-Oct-07 22:01

This is kind of useless. The page has already done a refresh, on the button, and it would just finish it's lifecycle without the redirect.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

asp.net Datagrid can display in row format

Spunky Coder4-Oct-07 22:10

Spunky Coder

4-Oct-07 22:10

The page has done the refresh part but may be there are somethings to be done when Page.IsPostBack is false.

Koushik

.mdf file

bhattiprolu4-Oct-07 21:21

bhattiprolu

4-Oct-07 21:21

hi all,,

i created .mdf file under my App_Data file if i am connecting to that data base..
i am getting the following error

"Failed to generate a user instance of SQL Server.
Only an integrated connection can generate a user instance.
The connection will be closed"

Can any body help me to fix this...........

Nirmala Jyothi4-Oct-07 21:15

Nirmala Jyothi

4-Oct-07 21:15

hi!
asp.net Datagrid can display in row format?
Generally datagrid is displayed in column format

eg: A|B|C|D

but i want in A
--
B
--
C
it is very urgent,plz let me know the answer as soon as possible

thnx,
nimmi

Re: asp.net Datagrid can display in row format

Imran Khan Pathan4-Oct-07 21:27

Imran Khan Pathan

4-Oct-07 21:27

Get it
Link1

Link2

Link3

bEST rEGARD
pATHAN

please don't forget to vote on the post that helped you.

Re: asp.net Datagrid can display in row format

N a v a n e e t h4-Oct-07 21:28

N a v a n e e t h

4-Oct-07 21:28

Nirmala Jyothi wrote:
it is very urgent

this won't really help you from getting fast answer. If you want fast answer, go and ask in some support forums.

Answer : Use a template column to get result like this.

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Validation of viewstate MAC failed..

IamAmit4-Oct-07 21:11

IamAmit

4-Oct-07 21:11

Hello friends, I got this error in my application. What went wrong..and how to resolve it..I am using vs 2005..
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machinekey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
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.

Exception Details: System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machinekey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

Source Error:

[No relevant source lines]

Source File: App_Web_adminlogin.aspx.4e1cade6.fhtclyxp.0.cs Line: 0

Stack Trace:

[HttpException (0x80004005): Unable to validate data.]
System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) +2549708
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +214

[ViewStateException: Invalid viewstate.
Client IP: 10.8.6.6
Port: 1268
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7
ViewState: /wEPDwULLTE1NjYxMDU5OTgPZBYCAgMPZBYCAg0PDxYCHgdWaXNpYmxlaGRkZO2e2+a2WhZCITPLB7L6SRRWmvRV
Referer: http://watergenie.ca/test/webmaster/adminlogin.aspx
Path: /test/webmaster/adminlogin.aspx]

[HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machinekey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.]
System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +116
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +251
System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4
System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37
System.Web.UI.HiddenFieldPageStatePersister.Load() +220
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +83
System.Web.UI.Page.LoadAllState() +35
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6953
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +154
System.Web.UI.Page.ProcessRequest() +86
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.test_webmaster_adminlogin_aspx.ProcessRequest(HttpContext context) in App_Web_adminlogin.aspx.4e1cade6.fhtclyxp.0.cs Blush | :O

System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210

Re: Validation of viewstate MAC failed..

DavidNohejl4-Oct-07 21:55

DavidNohejl

4-Oct-07 21:55

Obvious question: do you have a web farm?

If yes, do what exception message says. If not, it can be caused by someone (bot) acessing your site with cached (therefore probably invalid) viewstate.

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"Visual studio desperately needs some performance improvements. It is sometimes almost as slow as eclipse." - Rüdiger Klaehn
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search in dataset

Sebastian T Xavier4-Oct-07 21:00

Sebastian T Xavier

4-Oct-07 21:00

Hi all,

I have a dataset, i need to search for a string in the dataset. the dataset is not bound to any control. How can i do that? should i get any examples?

Thanking you in advance........

Sebastian

Re: search in dataset

N a v a n e e t h4-Oct-07 21:33

N a v a n e e t h

4-Oct-07 21:33

Hi Sebastian,

I think you can take each DataTable from DataSet and use DataTable.Select() command. This will return datarow collection.

Hope this helps

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textbox value gettype()

Sonia Gupta4-Oct-07 20:36

4-Oct-07 20:36

i have some numeric type value in the textbox.when i show the textbox value in the add watch , it shows the value in the double quotes.now the problem is how can i find out - if the textbox contains some numeric value - whether the textbox contans numeic value or not.

Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1

Christian Graus4-Oct-07 20:39

4-Oct-07 20:39

On the client, or the server ? You can do it on the server using regex. I believe javascript also has regex support, but I'm not familiar with it.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Sonia Gupta4-Oct-07 20:40

4-Oct-07 20:40

presently i am debugging my program

Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1

Imran Khan Pathan4-Oct-07 21:01

Imran Khan Pathan

4-Oct-07 21:01

try this

int numeicVal;
if(int.TryParse(value),out numeicVal)
{
//its numeric value
}
else
{
//its not numeric value
}

bEST rEGARD

pATHAN

please don't forget to vote on the post that helped you.

Sonia Gupta4-Oct-07 21:06

4-Oct-07 21:06

ThanQ

Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1

messagebox

Sonia Gupta4-Oct-07 20:09