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Absolutely and it was a stupid question from me
Actually what I had in mind was to use abstract class to require implementation of some methods
in a a derived form, but the the designer complains about how an abstract form can't be instantiated.
As a result the derived (non-abstract) form does not show up in the designer.
And that's why I thought of interfaces.
company, work and everything else @ netis
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Hi all,
Greetings.I need to detect the pop up bloker using javascript. if Pop is turned on i've to display a message "POPUP ON", if it is off have to display "POPUP OFF". I've tried out with some coding from net. But it is not working. Can any one of you help me to solve this issue as soon as possible. Its urgent.
Thanks in advance.
Babu
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This is a C# forum, not JavaScript forum.
Try searching it in google...
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hi! i want to create the following textboxes..
please help me..
1.one textbox contains numeric values only.
2.one contains characters only.
3.one contains EmailId.
4.one contains phone no
5.one contains pincode.
6.one contains fax no.
7. one contains mobile no.
8. one contains fax no.
how to validate this?
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use pattern matching for this.if you want to validate your input at the time of keypress then you have to do a little extra work on textBox_KeyPress event
else apply your validation at the time when you control looses its focus
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Check if this helps u,
Following code snippet is an example for validation of textbox. similar way compare values with different ascii numbers i.e. for only characters, numeric values...etc..
//VALIDATION FOR TELEPHONE NUMBER
bool valid5 = false;
char[] name5=new char[20];
name5=textBox27.Text.ToCharArray();
int leng5=textBox27.Text.Length ;
for(int i=0 ; i < leng5 ; i++ )
{
if( ((Convert.ToInt32(name5[i])>='0')&&(Convert.ToInt32(name5[i])<='9'))||(Convert.ToInt32(name21[i])==32))
{
valid5=true;
}
else
{
MessageBox.Show("TELEPHONE NUMBER: Enter the valid Telephone Number");
textBox27.Focus();
return;
}
}
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Use a Validator with regular expression. there are lots of examples on the web.
Grady Booch: I told Google to their face...what you need is some serious adult supervision. (2007 Turing lecture)
http:\\www.frankkerrigan.com
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I would like to check if user has entered ALT+10 or à , ä (UMALUT) or any english alphabets
The code sample in previous thread by 'sharmit' did not work for me.
Can you please point me the websites where I can find code sample for the same.
Sandeep Naik
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I want to basically check if user has entered any control characters
like 1-32 or 127 ASCII value (Ex: ALT + 127) in the edit box. And discard the same.
FYI this edit box should allow any other non english characters like French, German, Chinese, Japanese etc
Sandeep Naik
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Hello
I am trying to DoubleClick a row in a datagridview and open new form
and have textboxes populated from selectedrow.
This opens new form, not sure if its catching data
private void dataGridView1_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)
{
MasterForm.ActivateTab(2);
string strTemp = "";
strTemp = dataGridView1[dataGridView1.CurrentCell.RowIndex, 0].Value.ToString();
}
How do I bind it on next page/form to populate textboxes for selected columns?
Many thanks in advance
-- modified at 2:00 Friday 2nd March, 2007
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Hi,
A solution is to store the full row in the session object :
Session["selectrow"] = myDataSource.myTable.Rows[dataGridView1.CurrentCell.RowIndex];
Then in the load of the second page your read values from the session object :
mytextBox.Text = ((DataRow) Session["selectedrow"])["mycolumn"].ToString();
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Thanks works nice.
What if I want to go from Datagridview to Datagridview?
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Hi,
What do you mean by "from Datagridview to Datagridview" ?? It's not very clear for me.
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how to delete a commandbarbutton in ms-word that is already created..
and also how to check whether the button is already created..
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Hi guys,
I went through and played with the Example given in .net 2.0 It is working
perfectly fine in 32 bit Os that is XP... and i am getting the error
AccessViolation in Vista...Please help me how to solve it....My Vista is aslo
32 bit..
Unhandled Exception : System.AccessViolationException: Attempted to read or
write protected memory. This is often an indication that other memory is
corrupt.
at NetSDKSamples.LibWrap.DsBrowseForContainerW(DSBrowseInfo & info)
at NetSDKSamples.App.Main()
I have also tried running the exe as an Administrator..still the same result.
I have also tried runnint it from CMD promprt where cmd is also run as
administrator...still same result..
I am running out of ideas now... please help...me..
Path of Sample on My machine...
C:\Program Files\Microsoft Visual Studio
8\SDK\v2.0\LateBreaking\PlatformInvoke\WinAPIs\ActiveDir
Code:
//-----------------------------------------------------------------------
// This file is part of the Microsoft .NET Framework SDK Code Samples.
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//This source code is intended only as a supplement to Microsoft
//Development Tools and/or on-line documentation. See these other
//materials for detailed information regarding Microsoft code samples.
//
//THIS CODE AND INFORMATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY
//KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//PARTICULAR PURPOSE.
//-----------------------------------------------------------------------
// ActiveDir.cs
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Threading;
/*
typedef struct
{
DWORD cbStruct;
HWND hwndOwner;
LPCWSTR pszCaption;
LPCWSTR pszTitle;
LPCWSTR pszRoot;
LPWStr pszPath;
ULONG cchPath;
DWORD dwFlags;
BFFCALLBACK pfnCallback;
LPARAM lParam;
DWORD dwReturnFormat;
LPCWSTR pUserName;
LPCWSTR pPassword;
LPWStr pszObjectClass;
ULONG cchObjectClass;
} DSBROWSEINFOW, *PDSBROWSEINFOW;
*/
// all strings in structure will be marshaled as LPWStr
[ StructLayout( LayoutKind.Sequential, CharSet=CharSet.Unicode )]
public struct DSBrowseInfo
{
public int structSize;
private IntPtr dlgOwner;
public string dlgCaption;
public string treeViewTitle;
public string rootPath;
// in/out string must be declared as String in struct/class,
// not as StringBuilder
public string path;
public int pathSize;
public int flags;
private IntPtr callback;
private IntPtr lParam;
public int returnFormat;
public string userName;
public string password;
public string objectClass;
public int objectClassSize;
};
public class LibWrap
{
//int DsBrowseForContainer(PDSBROWSEINFO pInfo);
[ DllImport( "dsuiext.dll", CharSet=CharSet.Unicode )]
public static extern int DsBrowseForContainerW( ref DSBrowseInfo info );
public const int DSBI_ENTIREDIRECTORY = 0x00090000;
}
class App
{
public const int MAX_PATH = 256;
// Must be marked as STA since default is MTA. DsBrowseForContainerW calls
// CoInitialize, which initializes the COM library as STA.
[ STAThread ]
public static void Main()
{
// initialize all members
DSBrowseInfo dsbi = new DSBrowseInfo();
dsbi.structSize = Marshal.SizeOf( dsbi );
dsbi.dlgCaption = "The container picker";
dsbi.treeViewTitle = "Pick a container for this example.";
dsbi.path = new string( new char[ MAX_PATH ]);
dsbi.pathSize = dsbi.path.Length;
dsbi.flags = LibWrap.DSBI_ENTIREDIRECTORY;
dsbi.objectClass = new string( new char[ MAX_PATH ]);
dsbi.objectClassSize = dsbi.objectClass.Length;
Console.WriteLine( "Call DSBrowseForContainer..." );
int status = LibWrap.DsBrowseForContainerW( ref dsbi );
Console.WriteLine( "The status is " + status );
if( status == 1 )
{
Console.WriteLine( "The path is " + dsbi.path );
}
else
{
Console.WriteLine( "Call failed!" );
}
}
}
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Hi,
Is there any one who has encountered this issue. Basically my goal is to open the Active Diectory Container Browser using c#. I tried the above example in Vista. it does open it but when i try to close it i am getting the AccessViolation Exception. Please help me. As far as i know there is problem in above structure.
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i am biggner in c#.
i want to how to get multiple value from listbox or dropdownlistbox.
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Take a look at the SelectedItems property.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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sir,
i try with selecteditem property,but i dont get success.
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Ajeet mittal wrote: i try with selecteditem property
So use the SelectedItems (emphasis on the plural) property as I said.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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and dont forget to set ListBox.SelectionMode to an appropriate value.
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Hello All,
I am developing a shopping cart and both registered users and anonymous users can shop. The problem iam facing is with anonymous user how to create a visitorId so that i can link them to shopping cart. Visitor ID should be unique ie for every user, do i use session for this. Any suggestions guys.
Best Regards, Shilpa.
Thanks in Advance for your help. Best Regards
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Hi,
You can use the SessionID property of the session. it's unique.
You can also create your own ID (a guid for example) and store it in the session object :
Guid VisitorID = Guid.NewGuid();
Session["VisitorId"] = VisitorID;
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Hello everyone,
I have realised that there are Visual differences between the Button images. Some of them are square and look like the old fashion Windows Application and some like Windows XP.
It seems whenever the code is written in Visual Studio 7 once they are opened in Visual Studio 8 even after the converstion is successful, the button image looks like the old windows 3.1.
Here is an example for the square old windows style:
http://www.codeproject.com/listctrl/listview.asp[^]
Here is an example to show the rounded Button Windows XP look alike is this example:
http://csharp.simpleserial.com/[^]
What I find strange is that if I start a new project in Visual Studio 8 it creates Button shown in example Two but if I build on a project which was initially created in Visual Studio 7 then all the buttons look squared and old style including the Buttons which were added to the application in Visual Studio 8.
I have checked the Button Propeties and they are identical!!! Can someone tell me how we can change the Button Shown in example one into the one shown in example two?
Thank you so much for your help and have a great day.
Khoramdin
-- modified at 22:11 Thursday 1st March, 2007
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Hi,
the esthetic improvement in some controls is called "VisualStyles"; you must enable
it explicitly to get it, and it needs/uses a more recent version of one of the
system's dll files.
There are different ways to enable VisualStyles, one of them is calling
Application.EnableVisualStyles() before Application.Run().
But is exists only since .NET 2.0
For more info please search CodeProject for VisualStyles, or read the documentation.
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