Re: Sys.WebForms.PageRequestManagerServerErrorException: - ASP.NET Discussion Boards

KhandelwalA29-Jun-09 0:30

29-Jun-09 0:30

I am using this code to generate Treeview dynamically from the database.....output is coming but...not as desired.....means Category's connected field are coming to Sub-Category1 and Sub-Category1's field are showing in Sub-Category2..........plz chk and let me know whether the loop is rite or not? code is:

Dim ParentNode As String(,) = New String(100, 2) {}
Dim count As Integer = 0
Dim db As Database = DatabaseFactory.CreateDatabase("See2Buy")
Dim cmd As String = "Select CategoryID, CategoryName From Cat ORDER BY CategoryID"
Dim rdr As IDataReader = db.ExecuteReader(CommandType.Text, cmd)
While rdr.Read()
ParentNode(count, 0) = rdr.GetValue(rdr.GetOrdinal("CategoryID")).ToString()
ParentNode(System.Math.Max(System.Threading.Interlocked.Increment(count), count - 1), 1) = rdr.GetValue(rdr.GetOrdinal("CategoryName")).ToString()
End While
'rdr.Close()
For [loop] As Integer = 0 To count - 1
Dim root As New TreeNode()
root.Text = ParentNode([loop], 1)
'root.Target = "_blank"
root.Value = ParentNode([loop], 1)
root.NavigateUrl = "SubCat1.aspx?id=" + root.Value
Dim cmd1 As String = " Select SubCat1ID, SubCategoryName from SubCat1 where CategoryID =" & ParentNode([loop], 0)
'Dim Module_Sdr As SqlDataReader = Module_SqlCmd.ExecuteReader()
Dim rdr1 As IDataReader = db.ExecuteReader(CommandType.Text, cmd1)
While rdr1.Read()
Dim child As New TreeNode()
child.Text = rdr1.GetValue(rdr1.GetOrdinal("SubCategoryName")).ToString()
root.ChildNodes.Add(child)
Dim cmd2 As String = " Select SubCat2ID, SubCategoryName from SubCat2 where CategoryID =" & ParentNode([loop], 0)
Dim rdr2 As IDataReader = db.ExecuteReader(CommandType.Text, cmd2)
While rdr2.Read
Dim child2 As New TreeNode()
child2.Text = rdr2.GetValue(rdr2.GetOrdinal("SubCategoryName")).ToString()
child2.Target = "_blank"
child2.NavigateUrl = "Default.aspx"
child.ChildNodes.Add(child2)
End While
End While
rdr1.Close()
TreeView1.Nodes.Add(root)
TreeView1.CollapseAll()
Next

Re: Something Missing

Christian Graus29-Jun-09 0:38

Christian Graus

29-Jun-09 0:38

Your whole design is broken. You should just set the parent id of each child, not have a seperate table for each level. Beyond that, you should step through your code to try to work out what is wrong.

Christian Graus

Driven to the arms of OSX by Vista.

"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.

I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp

Re: Something Missing

Manas Bhardwaj29-Jun-09 0:40

Manas Bhardwaj

29-Jun-09 0:40

I have been noticing that you have been trying to do this for almost a week now.
Every time you come up to the CP for the next step.

In between, do you mind to put your code in PRE tag from next time it makes lives simple to read and understand the code.

As far as your code is concerned, I do not understand why did you make it this complex. I gave you SQL query hint [^]to get all the categories and sub categories from database.
Did you try that approach? I am sure it would have simply solved your problem of you would have gone step by step for you goal

Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: Something Missing

KhandelwalA29-Jun-09 0:44

KhandelwalA

29-Jun-09 0:44

Thanks for ur Code Mr. Manas that u gave me last time.....but that was showing just a single Category and single Sub-Category......thats why i did this one.........I am a new guy thats why comes to CP

Re: Something Missing

Muhammad Gouda29-Jun-09 3:10

Muhammad Gouda

29-Jun-09 3:10

As I understood, you need to create a tree of categories where each category may be a child and/or a parent to another .. if so,
- You need 2 columns in the Categories table, (CategoryId, ParetntId)
both must be of the same data type
- Then you have to set the CategoryId as PK, and ParentId as FK from the table itself

- Now we have finished the server side work.
- on the client side, you may load the table into a dataset object (name it CategoriesDataSet)
- To display the data on the tree control, no need for loops
- Just set the following properties to the tree control

DataSource = CategoriesDataSet<br />
ParentId = ParentId<br />
FieldId = CategoryId

Finally call DataBind()

foreach(Minute m in MyLife)
myExperience++;

Sys.WebForms.PageRequestManagerServerErrorException:

krishnaveer28-Jun-09 23:57

krishnaveer

28-Jun-09 23:57

Hi Guys

In ASP.Net 2.0 application i am using ajax(toolkit Script manager)

In My Application there are two panel, On Page load one panel visible is true After Click On A button, first Panel Visible= False and second panel visible = true
on second panel there is a start button

After Click On that Button i am getting this Error
while In IE 6.0 this application working perfectally

Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 0

What will be solution for that
Please Help Me

Thanks In Advanced

krishna veer singh

Re: Sys.WebForms.PageRequestManagerServerErrorException:

Ravi Mori29-Jun-09 0:13

Ravi Mori

29-Jun-09 0:13

Hi..checkout here:

http://www.dotnetspider.com/forum/161063-Sys-WebForms-PageRequestManagerServerErrorExceptio.aspx[^]

Re: Sys.WebForms.PageRequestManagerServerErrorException:

krishnaveer29-Jun-09 0:39

krishnaveer

29-Jun-09 0:39

I Implemented it
but its not working

so any other solution, SIR

krishna veer singh

How to persist the focus on the panel during postback

YazhiniP28-Jun-09 23:43

YazhiniP

28-Jun-09 23:43

Hi,

   I am a beginner in .Net.
   In my application i have 4 panels.
   But,during postback(such as a button click event),the focus automatically goes to the first panel.
   In web,i found on idea to use TabbedPanels1.showPanel(tabindex) on button's onclick event.
   But,both in the OnClientClick and OnServerClick events i have written the validation and some task to be done respectively.
   How to persist the focus on the panel during postback?

Thanks in advance
Smile | :)

Yazhini

Re: How to persist the focus on the panel during postback

Christian Graus28-Jun-09 23:49

Christian Graus

28-Jun-09 23:49

YazhiniP wrote:
But,both in the OnClientClick and OnServerClick events i have written the validation and some task to be done respectively.

You should always do validation on the server side, don't trust the client validation.

If there's no server side focus method to call, then you need to write javascript to do it.

How to deal with Fileupload control inside View control ?

Rameez Raja28-Jun-09 23:42

Rameez Raja

28-Jun-09 23:42

Hi all ,

How i deal with the File Uplad control in View control . i placed the Fileuplaod control on view control .

Is Fileupload stored data in viewstate like others controls inside view control ?

Any Idea or link ?

Best Regards

Re: How to deal with Fileupload control inside View control ?

Christian Graus28-Jun-09 23:50

Christian Graus

28-Jun-09 23:50

Rameez Raja wrote:
Is Fileupload stored data in viewstate like others controls inside view control ?

No. It's a html file input control, it's data is sent to the server, but it's not stored in viewstate.

Re: How to deal with Fileupload control inside View control ?

Rameez Raja29-Jun-09 0:34

Rameez Raja

29-Jun-09 0:34

Thanks for reply ,

It is server side control not the html file input control if not then kindly suggest me how i deal with fileupload control issue in view control ?

Best Regards

Re: How to deal with Fileupload control inside View control ?

Christian Graus29-Jun-09 0:40

Christian Graus

29-Jun-09 0:40

Rameez Raja wrote:
It is server side control not the html file input control

There is no such thing as a server side control, on the client. The 'server side control' is rendered as a html control, that's all it could ever be. whatever happens, on postback, your control will contain the bytes of your file and it's name. viewstate is for persisting values between postbacks, a file is assigned, sent on that postback and forgotten.

Re: How to deal with Fileupload control inside View control ?

Rameez Raja29-Jun-09 1:14

Rameez Raja

29-Jun-09 1:14

Christian Graus wrote:
There is no such thing as a server side control, on the client. The 'server side control' is rendered as a html control, that's all it could ever be. whatever happens, on postback, your control will contain the bytes of your file and it's name. viewstate is for persisting values between postbacks, a file is assigned, sent on that postback and forgotten.

Thanks for reply,

Ok iam agreed with you now how i deal with uplaoding the image may i have to store in folder Temprarly and called during displaying summary am i right ?

Suggest me good option to deal with uploading .

Best Regards

Re: How to deal with Fileupload control inside View control ?

Christian Graus29-Jun-09 10:28

Christian Graus

29-Jun-09 10:28

Yes, you need to write it to the file system if you want to display it after uploading.

Launching as aspx page from a user control(ascx) with parameters

tiran_kaskas28-Jun-09 22:27

tiran_kaskas

28-Jun-09 22:27

Dear colleges,
I have the following case:

1. web_page.aspx, using UC1.ascx
2. When this page is launched, after user does some things (selects settings), I need to launch web_page2.aspx from UC1.ascx with some parameters.
3. web_page2.aspx uses another user control (UC2.ascx), which needs the parameters passed from step 2 (from UC1.ascx).

Bottom line:
1. I need to pass parameters from UC1.ascx to web_page2.aspx.
2. The I need to pass these parameters from web_page2.aspx to UC2.ascx

I tried the following, which I know will not serve my needs:

In my UC1.ascx:

                <br />
object[] constructorParameters = new object[1];<br />
<br />
                constructorParameters.SetValue(SocketUserSettings, 0);<br />
<br />
                List<Type> constParamTypes = new List<Type>();<br />
                foreach (object constParam in constructorParameters)<br />
                {<br />
                    constParamTypes.Add(constParam.GetType());<br />
                }<br />
<br />
                UserControl ctl = Page.LoadControl("UC2.ascx") as UserControl;<br />
                // Find the relevant constructor<br />
                System.Reflection.ConstructorInfo constructor = ctl.GetType().BaseType.GetConstructor(constParamTypes.ToArray());<br />
<br />
                //And then call the relevant constructor<br />
                if (constructor == null)<br />
                {<br />
                    throw new MemberAccessException("The requested constructor was not found on : " + ctl.GetType().BaseType.ToString());<br />
                }<br />
                else<br />
                {<br />
                    constructor.Invoke(ctl, constructorParameters);<br />
                }<br />

And inside UC2.ascx constructor I did:

<br />
public SocketConnectionList(SocketParam SocketUserSettings)<br />
        {<br />
            m_propertiesSet = true;<br />
            m_SocketUserSettings = SocketUserSettings;<br />
            Response.Redirect("SocketConnectionListPage.aspx");<br />
        }<br />

The problem with this code is that launching an aspx from a user control will cause launching another instance of user control for the page launch and hence the parameters passed are not accessible for the second instance.

Please you help is appreciated.

Re: Launching as aspx page from a user control(ascx) with parameters

Manas Bhardwaj28-Jun-09 22:58

Manas Bhardwaj

28-Jun-09 22:58

Don’t you think the approach you are using is a bit complicated?
You can rather create a public property in the User Control(UC1). Set this property when you load this control on Page1. This way you already passed the information to the control.

In the second scenario, make user of hidden variables/query string to pass on the information.

Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: Launching as aspx page from a user control(ascx) with parameters

tiran_kaskas28-Jun-09 23:13

tiran_kaskas

28-Jun-09 23:13

Thanks, but I am still not clear.

I have the info I need in UC1.ascx already.
I need this information to be passed to web_page2.aspx (which in it's turn should pass it to UC2.ascx).

You have mentioned hidden variables, what does that means?
Do you have a simple example showing that (even pseudo would fit fine).

Thanks for the prompt reply!

Re: Launching as aspx page from a user control(ascx) with parameters

Manas Bhardwaj28-Jun-09 23:21

Manas Bhardwaj

28-Jun-09 23:21

When a User Control is loaded into a web form, it becomes part of the WebPage itself. So you need to look at it from that perspective and not from a Design time angle.
That means whatever information is available to Web Form2 can be easily accessed by UC2 too.

Hidden Variables[^]
Query Strings[^]

Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Web Control Library

devvvy28-Jun-09 21:49

devvvy

28-Jun-09 21:49

hello

What was known as "Web Control Library" for ASP.NET is no longer continued in VS2005/2008 am I right?

I think I remember I used tree control from the library some years ago...

dev

how to make an effective invitation number in activation emails

netsooz (Amir Hamidi)28-Jun-09 21:47

netsooz (Amir Hamidi)

28-Jun-09 21:47

Hi folks

I'm just trying to complete a registration sector and for that I've done evrything except for activation email. I know the algorithm and how to do that but my problem is where I can't get a beautiful activation number. I want to write and sql query by which I can select from 3 beggining letters of name, 2 final letters of last name and month and day of registration date and ... (which are enetered in registration form) . So I can make a complicated activation code. you know what do I mean!
my problem would be solved only if you tell me how I can write and handle that sql query for selection.
Thanks alot.

Proper Prepration Prevents Poor Performance! h

Re: how to make an effective invitation number in activation emails

Christian Graus28-Jun-09 22:02

Christian Graus

28-Jun-09 22:02

I would use GUIDs for codes to send for activation. SQL generates them natively.

Re: how to make an effective invitation number in activation emails

N a v a n e e t h28-Jun-09 22:06

N a v a n e e t h

28-Jun-09 22:06

URL Object Serialization: An Effortless Approach to User Account Confirmation[^] is a great article on the subject.

Smile | :)

Navaneeth

How to use google | Ask smart questions

any example on webparts and personalisation of webparts using db as oracle

lakshmichawala28-Jun-09 21:21

lakshmichawala

28-Jun-09 21:21

by defining like below in web.config file

<personalization defaultProvider="AspNetSqlPersonalizationProvider">
<providers>
<remove name="AspNetSqlPersonalizationProvider" />
<add name="AspNetSqlPersonalizationProvider" type="System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider" connectionStringName="SqlServices" />
</providers>
</personalization>

we are able to save the data in sqlserver....any body please give me one example on webparts how to save the in oracle database

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