ASP.NET Discussion Boards

sivaprakas wrote:
function test()
{

alert(document.getElementById("editName").value));

}

This would work with normal pages. But in MasterPages, it is different. Even though you have given the ID as "editname" ASP.NET appends a prefix of the contentplaceholder name along with the actual name. To overcome this, you can set the JavaScript call at runtime from the CodeBehind using editname.ClientID property as parameter to the JS function rather than hardcoding it.

[Venkatesh Mookkan]
My: Website | Yahoo Group | Blog Spot

Hi thanks for all reply i use
"ctl00$ContentPlaceHolder1$editName" as ID and comeout from the pbm

sivaprakas wrote:
"ctl00$ContentPlaceHolder1$editName" as ID and comeout from the pbm

Hard coding this is a bad practice. Once you changes the content place holder name, your script will stop functioning. You should use ClientId which is the correct solution.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

My Website | Ask smart questions

Hi guys i have one doubt,
First i installed vs2005 now i thought to install vs2003 also in that,
If i install low version on after adavnce version,
It will give any probs?,
And how to know i am on which version?,
Guide Me plz

Thanks & Regards,
Mageshh,
please don't forget to vote on the post

They look different, the only issue you will have is that sln files will open in 2003 if you double click them.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

I am sorry for stupid title, but I don't know how to name the thread.

Anyway, I am working on a web admin panel and I have a problem about object reference.
I know what this error mean, but what I don't know is why I reload some page 1000 times and I try to reload it 1001 time, and I get object reference?

Sometimes is on if (dataReader.Read()) and sometimes on if ((bool)Session["SomeText"]).

Can session be abandoned this way?

Before this if's, I have another if (in session_start in global.asax) that verifies whether session is null or not.

Does anyone have an idea what could be a problem?

I guess if your database connection fails, you get a dataReader back that is null, and you're not checking it. And, I guess your session must be timing out. I always check if a session variable is null before I try to convert it to anything. In fact, I'd tend to wrap it in a property that does exactly that, so it's written once and used every time.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

I've added check if connection is opened, but unfortunately, I have to wait to see if error comes again Smile | :)

, but I definitely have to change some things in my code.

Your session property sounds great. I have to implement that.

Thank you Christian and best regards.

I want to load an image into an image control on page postback

the images in the folder are loaded in a listbox then when the user clicks onteh image it loads inthe listbox, but the image nerver loads..

Plz help

This is my code

Partial Class Photos
Inherits System.Web.UI.Page
Dim imageString As String

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

If Not Page.IsPostBack Then
Dim ImageFolder As String = Server.MapPath("~\Images\Photos\")
Dim dir As New IO.DirectoryInfo(ImageFolder)
Dim fifo As IO.FileInfo
For Each fifo In dir.GetFiles
ListBox1.Items.Add(fifo.Name.ToString)
Next
End If

If Page.IsPostBack Then
Image2.ImageUrl = Server.MapPath("~\Images\Photos\" + imageString)

End If

End Sub

Protected Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

imageString = ListBox1.SelectedItem.Value.ToString
aspxlab.Text = imageString

End Sub
End Class

phatkin

It will load, you just need to click a few times. Your problem ( as you'd notice if you set some breakpoints to try to debug your code ) is that page_load occurs BEFORE your events fire. You need to set the imageURl inside your event, or in the prerender event, which fires after click events.

And, please tell me you are not writing a project with a control called ListBox1.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

hahahaha no not a projetc with a listbox called listbox1.

anyway am trying it our several times
thank you

phatkin

Hi dear.
my question from host admin :
((((
I recieve this error in my site :
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

I recieved this error in some different situation. this site worked in another host with out any
problem. I recieved this error in my onother site in your hostI think there is a
problem in web.config

}}}}

and host admin response:
(((
This is a bug of Microsoft, when you use some data controls of .net, in some case like post back
when data load not finished reading from database it will be happen.
And you can disable viewStateEncryptionMode on your web.config or your pages that issue happend,
but
it will be less safety for your data, but it is the fact, so it's up to you, or you can wait
MS
to fix it.
)))

I dont know what can I do now. how I can solve my problem.
please help

Do what you were told to do, add the attribute to the page that turns off view state encryption.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

do you know correct syntax of this attribute?

Relying on intellisense, which shows you all the options if you just look, I'd guess it's one of these:

ViewStateEncryptionMode="Never" EnableEventValidation="false"

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

If this is a microsoft bug, there is an article about it. Did you get any link to such an article from the host admin?

Despite everything, the person most likely to be fooling you next is yourself.

Hy guys, I have a question about images in SQL databses.
When I am in database table viewer in Microsoft Visual Web Developer 2005 Express Edition and I am entering data into the table, how do I insert image into the image-type field? What are the pre-conditions for inserting a picture (which is on my hard drive) to image-type field in database?
Thank you for your time.
Cheers

I am not sure if that's what the image type is for, because your DB will have no idea if the byte array you pass it is a bitmap. Have you googled for info ? I would suggest the best bet is to store the image in the file system, and store paths in your DB, but there's no reason you can't store the image data in your DB.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

And what about the Gridview control. I know I can use it to display data from database very easy. And if the table in the database contains images will the gridview control display it automaticly as it does for the other fields?

A C# Windows application to store and retrieve photos from a SQL Server database.
http://www.codeproject.com/KB/database/albumviewer.aspx[^]

only two letters away from being an asset

Convert image in to binary data and store into the database.

and whenever you want to access the image from the database, read binary data from the database and create .bmp file

Smile | :)

mitesh

Hi Friends,

Can any one help me with my website(http://www.sharetosave.co.uk/[^]) connection it gives following error when I upload it to the server i.e. hosting company server.

Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'MySql.Data, Version=5.0.7.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The system cannot find the file specified.

Everything runs fine on my local server.

Web hosting company says that MySql.Data.dll is in GAC and I need to put reference i web.config
I put that Reference as follow.

<add assembly="MySql.Data, Version=5.0.7.0, Culture=neutral, PublicKeyToken=994bc1102e243463">

Can any one help please? Its been more than 2 weeks between me and web hosting company we are unable to resolve the problem.

Naveed Kamboh
Complexity kills, Write easy code for your self.
Cash-time

I guess they don't have the same version of MySQL installed.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Do you know how you search on google or yahoo, msn etc.. and type in a certain phrase,lets say "blue cats in florida" how do I get that phrase on my landing page without having to type the phrase ? Does anyone know what I mean ?

Thanks !

Do a google search, then look at the URL, the way to build them is pretty straightforward

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )