ASP.NET

Re: How do I make Multiple views of the page

23-Apr-08 1:03

By setting up a permissions system and then enabling or showing options based on role.

Christian Graus

Please read this if you don't understand the answer I've given you

"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 )

Spunky Coder23-Apr-08 1:14

Spunky Coder

23-Apr-08 1:14

Make use of Form Authentication and work according to your requirement.

.....

Bind Table and it's content dynamically to Datalist [modified]

sjs4u23-Apr-08 0:38

sjs4u

23-Apr-08 0:38

Hi,

I want to Bind Datalist Dynamically in Which depending upon the condition my table and it's fields are changing everytime.

Now I want to bind these records and display images dynamically.

e.g. I have table1 and table2 in which table1 contains 5 fields and table2 contains 3 fields. Now if condition is I want details from table1 then I want to bind the data to datalist.

Same as for if condition is table2.

How can I do?

Thanks

modified on Wednesday, April 23, 2008 6:44 AM

Re: Bind Table and it's content dynamically to Datalist

Christian Graus23-Apr-08 0:45

Re: Bind Table and it's content dynamically to Datalist

23-Apr-08 0:45

Your best bet is to manipulate your data source first, then bind to it.

sjs4u23-Apr-08 1:24

sjs4u

23-Apr-08 1:24

Thanks for the information.

Though If I bind the datasource.

But the fields are not same. if table1 contains no,name,image,MRP,Price then table2 will contains No,Name,Image.

and this is not only 2 table. There are near about 6-7 tables.

Thanks you

dynamically adding controls - or the limit of ASP.NET.......

causalfriend23-Apr-08 0:34

causalfriend

23-Apr-08 0:34

.... or i'm just not clever enough to get it.

Hi

I struggle over the same problem all the time and i know there are different solutions to handle it, but non of them makes me happy.

Imagine the following aspx-page:

<br />
<asp:Panel ID="Panel1" runat="server"></asp:Panel><br />
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder><br />

with the code:

<br />
protected void Page_Load(object sender, EventArgs e)<br />
{<br />
   TextBox t = new TextBox();<br />
   t.Text = DateTime.Now.ToString();<br />
   addLinkButton(" value 0 ");<br />
}<br />
private void addLinkButton(string value)<br />
{<br />
    LinkButton b = new LinkButton();<br />
    b.Text = value;<br />
    b.Click += new System.EventHandler(testClick);<br />
    PlaceHolder1.Controls.Add(b);<br />
}<br />
protected void testClick(object sender, EventArgs e)<br />
{<br />
    PlaceHolder1.Controls.Clear();<br />
    addLinkButton(" value 1 ");<br />
    Label l = new Label();<br />
    l.ID = "thelabel";<br />
    l.Text = "the text";<br />
    Panel1.Controls.Add(l);<br />
}<br />
<br />

After clicking the linkButton the second time the handler won't be fired. i know that i could set the Test of the linkButton different (i could define the button globally and access it by the variable name in the handler.the thing is: this example is just very simplified. the LinkButton might be some very complex structure. Example: A list of Controls including Controls. So if i build up the complex list in page_load and in the handler i need to move Controls to other positions its NOT an option to remove list-items from controls to add it at different places. on the other sideI might want to update a database in the event-handler and re-read the structure, like i re-created the linkButton with a different Text.

so what i need is the example above to be solved.
i'm very desperate about this problem Frown | :(

thanks for every input (and if possible i would love to have an explanation why the example doesnt work).

if i look at the page life cycle i cant see any problem creating the event-handler in a handler since i can create controls there. and of course a handler is part of a control!

Re: dynamically adding controls - or the limit of ASP.NET.......

Christian Graus23-Apr-08 0:44

Re: dynamically adding controls - or the limit of ASP.NET.......

23-Apr-08 0:44

Once you start dynamically adding controls in PAge_load or after, their viewstate will not be restored, so their events will not fire. One easy way around this is to have them just redirect to the same page with something on the URL telling you which link was pressed.

causalfriend23-Apr-08 1:37

causalfriend

23-Apr-08 1:37

Hi Christian

Thank you for the answer. so far i have 4 solutions (your hint is one of them) to avoid the problem i have, but still: the way i would like to do it seems to be the 'natural way'. all the 'hacks' (at least from my point of view) dont satisfy me (i can be very stubborn Wink | ;)

).

you gave me the last hint i needed: why it doesnt work. since i call the addLinkButton-method twice, the second time the viewstate wont be restored.

Yves

problem with stored procedure

eyeseetee23-Apr-08 0:32

23-Apr-08 0:32

Hi
I am trying to update a field in a database using a stored procedure.
The field in the database is type smallint

The value that I am inserting is from a textbox, so I have the following code:

cmdsqlcommandupdate.Parameters.Add(new SqlParameter("@Height", SqlDbType.SmallInt));
cmdsqlcommandupdate.Parameters["@Height"].Value = tbheight.Text;

However it is not updating the field, when I hard code the value in, it updates
So I'm wondering do I need to convert the textbox value to int before I enter?
any help would be great

cheers! Smile | :)

J4amieC23-Apr-08 0:45

J4amieC

23-Apr-08 0:45

.netman wrote:
So I'm wondering do I need to convert the textbox value to int before I enter?

actually to a short, as thats the C# equivalent to SmallInt.

short.Parse or, btter still, short.TryParse

eyeseetee23-Apr-08 0:59

23-Apr-08 0:59

hi
thanks for the answer, however i tried the following and it didnt work:

cmdsqlcommandupdate.Parameters.Add(new SqlParameter("@Height", SqlDbType.SmallInt));
cmdsqlcommandupdate.Parameters["@Height"].Value = short.Parse(tbheight.Text)
it showed the error

'short' does not contain a definition for 'cmdsqlcommandupdate'

why would this be?

thanks so far Smile | :)

eyeseetee23-Apr-08 1:04

23-Apr-08 1:04

OK ignore that post i used this

short shorttest = short.Parse(tbheight.Text);

cmdsqlcommandupdate.Parameters.Add(new SqlParameter("@Height", SqlDbType.SmallInt));
cmdsqlcommandupdate.Parameters["@Height"].Value = shorttest;

but it is still not updating the field

The textbox where the value comes from is in a panel, the update button is in a different area , would this make a difference?

cheers

Christian Graus23-Apr-08 1:09

23-Apr-08 1:09

No, not in the slightest. Have you taken the params passed into the debugger and run them through the proc in your DB to see if the issue is your database code ?

Christian Graus23-Apr-08 1:05

23-Apr-08 1:05

Because you don't have a semicolon at the end ?

You should use TryParse, or this code will blow up if the text is not a short.

eyeseetee23-Apr-08 1:09

23-Apr-08 1:09

<blockquote class="FQ"><div class="FQA">Christian Graus wrote:</div>Because you don't have a semicolon at the end ?</blockquote>

I cant see where I am missing one from the statement above

I tried:

short shorttest = short.TryParse(tbheight.Text);
but it gives the error:

No overload for method 'TryParse' takes '1' arguments

Thanks christian

Christian Graus23-Apr-08 1:12

23-Apr-08 1:12

I guess if you paid attention to the intellisense, or read the docs...

short shorttest;

if ( short.TryParse(tbheight.Text, out shorttest))
{
// This means the parse was successful.
}

J4amieC23-Apr-08 1:13

J4amieC

23-Apr-08 1:13

.netman wrote:
No overload for method 'TryParse' takes '1' arguments

have you checked out the documentation for short.TryParse??

If you did you'll see it returns a boolean and has a second parameter.

short shorttest = 0;<br />
if(short.TryParse(tbHeight.Text, out shorttest)<br />
{<br />
  // tbHeight contained a value that is a valid short. shorttest has that value<br />
}

eyeseetee23-Apr-08 1:13

23-Apr-08 1:13

OK I think the problem runs deeper, I have just tried updating another field and it hasnt worked either, the field is a nvarchar

If i hardcode values in it works, but when I get them from textbox it doesnt

The texboxes are in panels but the update button is outside the panel, would this affect it?

thanks!

Christian Graus23-Apr-08 1:16

23-Apr-08 1:16

.netman wrote:
The texboxes are in panels but the update button is outside the panel, would this affect it?

No, it shouldn't. When you set breakpoints, are the right values being found ?

eyeseetee23-Apr-08 1:25

23-Apr-08 1:25

Yeah the right values are found

The weird thing is, i am using one of the textboxes to find the correct field in the database and update that row.
It finds that textbox ok, but when I try and use any other textbox it just wont update
If I hardcode it does

Shall I post some code

I tried the

short shorttest;

if ( short.TryParse(tbheight.Text, out shorttest))
{
// This means the parse was successful.
}

but this didnt work either

eyeseetee23-Apr-08 1:29

23-Apr-08 1:29

OK, I've found the problem
Im so stupid!

Basically I had textfields which were displaying data from a database, this data was selected on pageload and applied to the textboxes
I moved this code to page init and it worked

how annoying

thanks for the help thouhg guys D'Oh! | :doh:

path of file

ptvce23-Apr-08 0:21

ptvce

23-Apr-08 0:21

can i write this code?
window.open('C:/webpart/a.htm')
or i should write a url instead of 'c:/webpart/a.htm'

Re: path of file

Christian Graus23-Apr-08 0:42