IsNumeric

[sck10]

Hello,

I am trying to determine if a value is NOT numeric in C#. How do you test
for "Not IsNumeric"?

protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsertE ventArgs e)

if (e.NewValues["Funding"] != "" && Not IsNumeric(e.New Values["Funding"]))
{
e.Cancel = true;
this.MessageTex t.Text += "Annual Rev: Numbers only.<br />";
}
}

I tried the following, but it seems awfully cluncky. Thanks, sck10
protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsertE ventArgs e)

// verify the textbox contains an integer
if (e.Values["Funding"].ToString() != "")
{
try {int i = Convert.ToInt32 (e.Values["Funding"].ToString(), 10);}
catch (FormatExceptio n i)
{
e.Cancel = true;
this.lblMessage Text.Text += "Annual Rev: Numbers only.<br />";
}
} // end if
}

[Teemu Keiski]

These might be interesting

http://www.hanselman.com/blog/Explor...mericForC.aspx
http://weblogs.asp.net/justin_rogers...29/100982.aspx

--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke
"sck10" <sc***@online.n ospamwrote in message
news:eh******** ******@TK2MSFTN GP02.phx.gbl...

Hello,

I am trying to determine if a value is NOT numeric in C#. How do you test
for "Not IsNumeric"?

protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsertE ventArgs e)

if (e.NewValues["Funding"] != "" && Not
IsNumeric(e.New Values["Funding"]))
{
e.Cancel = true;
this.MessageTex t.Text += "Annual Rev: Numbers only.<br />";
}
}

I tried the following, but it seems awfully cluncky. Thanks, sck10
protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsertE ventArgs e)

// verify the textbox contains an integer
if (e.Values["Funding"].ToString() != "")
{
try {int i = Convert.ToInt32 (e.Values["Funding"].ToString(), 10);}
catch (FormatExceptio n i)
{
e.Cancel = true;
this.lblMessage Text.Text += "Annual Rev: Numbers only.<br />";
}
} // end if
}

[David Anton]

Double.TryParse is a clean way to go. Here's an example where I've wrapped
it in a C# method:
http://www.tangiblesoftwaresolutions...0IsNumeric.htm
--
David Anton
www.tangiblesoftwaresolutions.com
Instant C#: VB to C# converter
Instant VB: C# to VB converter
Instant C++: C#/VB to C++ converter
C# Code Metrics: Quick metrics for C#
"sck10" wrote:

Hello,

I am trying to determine if a value is NOT numeric in C#. How do you test
for "Not IsNumeric"?

protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsertE ventArgs e)

if (e.NewValues["Funding"] != "" && Not IsNumeric(e.New Values["Funding"]))
{
e.Cancel = true;
this.MessageTex t.Text += "Annual Rev: Numbers only.<br />";
}
}

I tried the following, but it seems awfully cluncky. Thanks, sck10
protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsertE ventArgs e)

// verify the textbox contains an integer
if (e.Values["Funding"].ToString() != "")
{
try {int i = Convert.ToInt32 (e.Values["Funding"].ToString(), 10);}
catch (FormatExceptio n i)
{
e.Cancel = true;
this.lblMessage Text.Text += "Annual Rev: Numbers only.<br />";
}
} // end if
}

[sck10]

Thanks Teemu...
"Teemu Keiski" <jo****@aspalli ance.comwrote in message
news:eQ******** ******@TK2MSFTN GP06.phx.gbl...

These might be interesting

http://www.hanselman.com/blog/Explor...mericForC.aspx
http://weblogs.asp.net/justin_rogers...29/100982.aspx

--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke
"sck10" <sc***@online.n ospamwrote in message
news:eh******** ******@TK2MSFTN GP02.phx.gbl...

>Hello,

I am trying to determine if a value is NOT numeric in C#. How do you
test for "Not IsNumeric"?

protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsert EventArgs e)

if (e.NewValues["Funding"] != "" && Not
IsNumeric(e.Ne wValues["Funding"]))
{
e.Cancel = true;
this.MessageTex t.Text += "Annual Rev: Numbers only.<br />";
}
}

I tried the following, but it seems awfully cluncky. Thanks, sck10
protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsert EventArgs e)

// verify the textbox contains an integer
if (e.Values["Funding"].ToString() != "")
{
try {int i = Convert.ToInt32 (e.Values["Funding"].ToString(), 10);}
catch (FormatExceptio n i)
{
e.Cancel = true;
this.lblMessage Text.Text += "Annual Rev: Numbers only.<br />";
}
} // end if
}

[sck10]

Thanks David, I'll give it a shot...
"David Anton" <Da********@dis cussions.micros oft.comwrote in message
news:E0******** *************** ***********@mic rosoft.com...

Double.TryParse is a clean way to go. Here's an example where I've
wrapped
it in a C# method:
http://www.tangiblesoftwaresolutions...0IsNumeric.htm
--
David Anton
www.tangiblesoftwaresolutions.com
Instant C#: VB to C# converter
Instant VB: C# to VB converter
Instant C++: C#/VB to C++ converter
C# Code Metrics: Quick metrics for C#
"sck10" wrote:

>Hello,

I am trying to determine if a value is NOT numeric in C#. How do you
test
for "Not IsNumeric"?

protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsert EventArgs e)

if (e.NewValues["Funding"] != "" && Not
IsNumeric(e.Ne wValues["Funding"]))
{
e.Cancel = true;
this.MessageTex t.Text += "Annual Rev: Numbers only.<br />";
}
}

I tried the following, but it seems awfully cluncky. Thanks, sck10
protected void fvFunding_ItemI nserting_Valida te(object sender,
FormViewInsert EventArgs e)

// verify the textbox contains an integer
if (e.Values["Funding"].ToString() != "")
{
try {int i = Convert.ToInt32 (e.Values["Funding"].ToString(), 10);}
catch (FormatExceptio n i)
{
e.Cancel = true;
this.lblMessage Text.Text += "Annual Rev: Numbers only.<br />";
}
} // end if
}

[Walter Wang [MSFT]]

Hi sck10,

It seems you're converting lots of VB.NET code to C# recently, right? I
recommend you first write the code in VB.NET, and then use Reflector to
view its disassembled code in C#. Sometimes, VB.NET is using functions from
Microsoft.Visua lBasic.dll, if you do not want to reference this assembly,
you can also check its disassembled code in C# and try to incorporate it
into your code.

Regarding this question, please feel free to post here if you need anything
else.
Sincerely,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

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that require urgent, real-time or phone-based interactions or complex
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handled working with a dedicated Microsoft Support Engineer by contacting
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[sck10]

Yes, Walter, you are right about the conversion. I am trying to learn c#
and the best way for me is by converting my vb.net applications to c#.

Anyway, thanks again...
"Walter Wang [MSFT]" <wa****@online. microsoft.comwr ote in message
news:vZ******** ******@TK2MSFTN GXA01.phx.gbl.. .

Hi sck10,

It seems you're converting lots of VB.NET code to C# recently, right? I
recommend you first write the code in VB.NET, and then use Reflector to
view its disassembled code in C#. Sometimes, VB.NET is using functions
from
Microsoft.Visua lBasic.dll, if you do not want to reference this assembly,
you can also check its disassembled code in C# and try to incorporate it
into your code.

Regarding this question, please feel free to post here if you need
anything
else.
Sincerely,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

=============== =============== =============== =====
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/subscripti...ult.aspx#notif
ications.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscripti...t/default.aspx.
=============== =============== =============== =====

This posting is provided "AS IS" with no warranties, and confers no
rights.

[sck10]

Hi Walter,

I just downloaded the Reflector tool. Can you point me to where I would
find IsNumeric or IsDate so I could see how it converts to c#?

Thanks again, sck10

"Walter Wang [MSFT]" <wa****@online. microsoft.comwr ote in message
news:vZ******** ******@TK2MSFTN GXA01.phx.gbl.. .

Hi sck10,

It seems you're converting lots of VB.NET code to C# recently, right? I
recommend you first write the code in VB.NET, and then use Reflector to
view its disassembled code in C#. Sometimes, VB.NET is using functions
from
Microsoft.Visua lBasic.dll, if you do not want to reference this assembly,
you can also check its disassembled code in C# and try to incorporate it
into your code.

Regarding this question, please feel free to post here if you need
anything
else.
Sincerely,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

=============== =============== =============== =====
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/subscripti...ult.aspx#notif
ications.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscripti...t/default.aspx.
=============== =============== =============== =====

This posting is provided "AS IS" with no warranties, and confers no
rights.

[Walter Wang [MSFT]]

Hi sck10,

Thank you for your quick reply.

Here's the steps to get the source code of IsNumeric:

1) Create a simple VB.NET console application, type in following code:

Sub Main()
Dim s As String = "1.234"
If IsNumeric(s) Then
Console.WriteLi ne("s is numeric")
End If
s = "2006/9/1"
If IsDate(s) Then
Console.WriteLi ne("s is date")
End If
End Sub

2) Build it; in Reflector, open the generated exe; find the Main function,
double click it to see its disassembled code (make sure you selected "C#"
in the toolbar combobox):

[STAThread]
public static void Main()
{
string text1 = "1.234";
if (Versioned.IsNu meric(text1))
{
Console.WriteLi ne("s is numeric");
}
text1 = "2006/9/1";
if (Information.Is Date(text1))
{
Console.WriteLi ne("s is date");
}
}

3) Click on the "IsNumeric" function to navigate to its source. You will
learn that it's located in Microsoft.Visua lBasic.Compiler Services.Versio ned
as a static method, so you can reference Microsoft.Visua lBasic.dll in your
C# project and use this method directly; or you can write your version of
IsNumeric use the disassembled code as reference.

Hope this helps. Please feel free to post here if anything is unclear.

Regards,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

=============== =============== =============== =====
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
=============== =============== =============== =====

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[Walter Wang [MSFT]]

Hi sck10,

Another note, if you checked Reflector's "View/Options/Show PDB Symbols"
and you're disassembling an assembly with full .pdb file, you will see the
correct variable name:

[STAThread]
public static void Main()
{
string s = "1.234";
if (Versioned.IsNu meric(s))
{
Console.WriteLi ne("s is numeric");
}
s = "2006/9/1";
if (Information.Is Date(s))
{
Console.WriteLi ne("s is date");
}
}

Previously I'm not checking that option, so the variable "s" has a generic
name "text1".
Regards,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

=============== =============== =============== =====
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
=============== =============== =============== =====

This posting is provided "AS IS" with no warranties, and confers no rights.