Re: Find Control on webform - C# Discussion Boards

25-Feb-09 5:12

Hi,

I have a button on my webform that I need to access from my user control code behind, not the page on which the button resides, but I'm not sure how I find it.

I've thought it would be something like this, but this doesnt work:

Button button=(Button)FindControl("btn");

Thanks!

J4amieC25-Feb-09 5:38

J4amieC

25-Feb-09 5:38

Have you tried Page.FindControl("..")?

Terick25-Feb-09 6:03

25-Feb-09 6:03

Yes have tried that:

Button button=(Button)Page.FindControl("btn");

The Page will return the correct page, but nothing gets assigned to button, so I am getting nullReferenceException error.

Terick25-Feb-09 6:28

25-Feb-09 6:28

When I drill down into the error, into the Page property, the Page directs itself correctly and the button is listed under the [ASP.Page_aspx] base but there is no FindControl option listed. Any ideas as to why this is?

Rutvik Dave25-Feb-09 8:43

Rutvik Dave

25-Feb-09 8:43

I hope that Button is not in the ContentPlaceHolder and you are not using MasterPages.

Try

Page.Parent.FindControl()

If that button is inside the ContentPlaceHolder then stack trace and find the actual value for that button. something like xxxxxctl001_btn.

then first find the content place holder (or any other container)
using

container c = Page.FindControl('container') and then c.FindControl('btn')

PS: container means any container i.e. Panel / ContentPlaceHolder etc...

Terick25-Feb-09 11:04

Generate class from schema with restrictions???

25-Feb-09 11:04

Yes! That was my problem. I was not referencing the Master Page and ContentPlaceHolder. Thank you for pointing that out to me.

Datetimepicker

cdpace25-Feb-09 5:00

cdpace

25-Feb-09 5:00

Hello can anyone tell me how to make the date time picker control in visual studio 2005 to display only a list of months and years?

Re: Datetimepicker

PIEBALDconsult25-Feb-09 7:11

PIEBALDconsult

25-Feb-09 7:11

It can't, as far as I know.

Re: Datetimepicker

cdpace25-Feb-09 8:07

cdpace

25-Feb-09 8:07

Tought so, Thank you anyways.

pankazmittal25-Feb-09 4:53

pankazmittal

25-Feb-09 4:53

Hi I am designing an XSD schema in which there is a field called SSN. This field has some restrictions like maxlength, type, format etc. All that is described in schema itself. Schema sample attached.

Now, I generate a C# class out of this schema using XSD.exe or XSDGen tool. They do create a class but none of them incorporates the restrictions (validation) specified in schema. Basically, I want object class to have a way to validate those restrictions.

How can I generate a class from schema which also includes the restriction on fields?

Thanks
Pankaj

Here is the schema sample ---

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:simpletype name="ssnumber" final="restriction">
<xsd:restriction base="xsd:string">
<xsd:length value="11" />
<xsd:pattern value="\d{3}\-\d{2}\-\d{4}" />
</xsd:restriction>
</xsd:simpletype>
<xsd:element name="Employee">
<xsd:complextype>
<xsd:sequence>
<xsd:element name="SSN" type="ssnumber" />
<xsd:element name="Name" type="xsd:string" />
</xsd:sequence>
</xsd:complextype>
</xsd:element>
</xsd:schema>

How to split Large XML files into number of small files

Rizwan Bashir25-Feb-09 4:28

Rizwan Bashir

25-Feb-09 4:28

Hi

I have list of files which are roughly 2GB in Size. When I load them they never comes back, So I need to split them, I searched and found this one
http://www.codeproject.com/KB/XML/SplitLargeXMLintoSmallFil.aspx[^]
but it has some missing declarations and functions which I asked the writer but no response so far.

Is there any oen who can help me out with this issue. I need to split one file into maximum of 25 MB size. The xml File is very very simple like this
<catalog>
<product>
<name>Product 1</name>
</product>
<product>
<name>Product 2</name>
</product>

</catalog>

any help would be highly appreciated.

Best Regards
Rizwan Bashir

Re: How to split Large XML files into number of small files

PIEBALDconsult25-Feb-09 5:13

PIEBALDconsult

25-Feb-09 5:13

Any way you like. Are your products in different departments? Or come from different vendors?

Re: How to split Large XML files into number of small files

Rizwan Bashir25-Feb-09 21:44

Rizwan Bashir

25-Feb-09 21:44

They are from Different vendors but most of them have same XML structure with same parent tags ie catalog and product. under product there could be different number of values but overall structure is same.

any ideas ?

Best regards
Rizwan Bashir

Re: How to split Large XML files into number of small files

PIEBALDconsult26-Feb-09 3:28

PIEBALDconsult

26-Feb-09 3:28

I was hinting that you could make separate files for each department or vendor.

how to make objects are visble/invisble..

priyareguri25-Feb-09 4:21

priyareguri

25-Feb-09 4:21

hi friends..am stroing graphics..for example rectangle,ellipse,line,round rect etc each graphic in seperate object..so now i want to make invisble/visble using button click events..plzzzzzzzz help me...

txs in advance...

Re: how to make objects are visble/invisble..

Xmen Real 25-Feb-09 4:38

Xmen Real

25-Feb-09 4:38

I wrote a simple code for help

Bitmap b1 = new Bitmap(256, 256);
Bitmap b2 = new Bitmap(256, 256);
Bitmap final = new Bitmap(256, 256);
Graphics g = Graphics.FromImage(b1);
g.DrawRectangle(Pens.Red, 0, 0, 150, 150);
g.Dispose();
g = Graphics.FromImage(b2);
g.DrawEllipse(Pens.Black, 100, 100, 50, 50);
g.Dispose();
g = Graphics.FromImage(final);
g.DrawImage(b1, new Point(0, 0)); // Delete this line if you dont want to draw b1 image
g.DrawImage(b2, new Point(0, 0));
g.Dispose();
pictureBox1.BackgroundImage = final;

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

Folder Lock and Hiding.

ncc1701e25-Feb-09 3:38

ncc1701e

25-Feb-09 3:38

Hi,

I am trying to create a tool using c# which hides and locks folders similar to LockBox. This means that the hidden folder will be invisible to EVERYONE when protected, and visible when a password is entered. In code project there is an example using windows shell folders which actually "locks" the folder - but the problem is that it still is 1) Visible and 2) accessable through windows command prompt.

Thanks a lot Smile | :)

EliottA25-Feb-09 5:35

EliottA

25-Feb-09 5:35

Ok. I didn't see one question there.

Check out the CodeProject forum Guidelines[^]

Curtis Schlak.25-Feb-09 9:23

Curtis Schlak.

25-Feb-09 9:23

He's just bragging. : )

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

EliottA25-Feb-09 9:37

EliottA

25-Feb-09 9:37

What a tease.

Check out the CodeProject forum Guidelines[^]

ncc1701e27-Feb-09 1:29

ncc1701e

27-Feb-09 1:29

Ups ... you're right... I was just last in thinking lol..

So the question is. Is there anyway to do this in C# without using the mentioned methods above in my first post?