Expression Parsing Using FLEE And Custom Expression Context

Jun 12, 2012

I am using Flee to build a formula builder. It works great but the only problem I'm facing is that Flee doesn't understand Generic Methods I guess. I have a function called IIf declared in the expression context I'm using. [code]How can I work around this. I mean cannot , in sense, write all possible overloads of the function of all .net primitive types. What approach should I take.

View 1 Replies


ADVERTISEMENT

The Name "The" Is Not Permitted In This Context. Valid Expression Are Constants, Constants Expression, And (in Some Contexts) Variables

May 31, 2012

I am calling this function when a button is CLICKED and received the error; The name "The" is not permitted in this context. Valid expression are constants, constants expression, and (in some contexts) variables. Column names are not permitted. Unclosed quotation mark after the character string 'True)'.

The function is as follows;

Private Sub Save()
Dim conn As SqlConnection = GetDbConnection()
Dim query As String
Dim cmd As New SqlCommand

View 3 Replies

Parsing A Expression String?

Jun 28, 2010

im doing a simple calculatro and was happy with the way i done things .. a ew member variables and a properties:

Private MVAR_Number1 As Decimal
Private MVAR_Number2 As Decimal
Private MVAR_Operator As Char[code].....

he want to add this:

Dim Operators() As Char = ("+", "-", "*", "/")
Dim OpPos as Decimal
OpPos = Expr.IndexOfAny(Operators)[code].....

Just drives me mad how complex this is all getting for something so simple, fell like giving it all up .

View 6 Replies

IDE :: Regular Expression Got Parsing The Html

Sep 15, 2006

get generic regular expression for my html file ....????? My html is....

[Code]...

View 2 Replies

Regex - Parsing Excel Reference With Regular Expression?

Oct 14, 2010

Excel returns a reference of the form

=Sheet1!R14C1R22C71junk

("junk" won't normally be there, but I want to be sure that there's no extraneous text.)I would like to 'split' this into a VB array, where

a(0)="Sheet1"
a(1)="14"
a(2)="1"

[code]....

I'm sure it can be done easily with a regular expression, but I just can't get the hang of it.

View 2 Replies

Datasource - An Expression Of Non-boolean Type Specified In A Context Where A Condition Is Expected - Near ')'

Jun 24, 2011

I am developing a VB.NET ASPX file and am trying to run a string query in VB.NET, but now I get the above error message. How can I determine the cause? Some of the code in this

[Code]...

View 2 Replies

Delegate 'System.Threading.ThreadStart' Requires An 'AddressOf' Expression Or Lambda Expression As The Only Argument To Its Constructor?

Jan 23, 2010

I got this Error. below is my code.

GenerateTheList is function.Need help
Private Sub buttGenerate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttGenerate.Click
Dim thread1 As New Thread(New ThreadStart(GenerateTheList))
thread1.Start()
End Sub

View 1 Replies

Code To Put In An Expression To Add Database Columns In A Row And Display It In The Expression Column

Mar 21, 2010

While looking in the dataset designer for a database table I am doing in visual basic 2008 I found a line for expressions under the property menu for a specific column. I need to know the code that I would put in this expression line so that this column adds up the numbers I input into three other columns and displays that number in the column. I need it to automatically calculate this for each row in the database table.

View 13 Replies

DataColumn.Expression: How To Use A User Defined Function In Expression

Oct 12, 2010

I am trying to write following expression on a datacolumn. But it results in error:Replicate('*', nLevel) + NameWhere: Replicate() is a user defined function (in a module). nLevel and Name are two other columns in same data table.

View 3 Replies

Custom Function For Datacolumn.expression Property

Jan 23, 2009

i read an article about datacolumn.expression property here [URL]. this is really great. but i was just wondering, for my case i want to use my custom function to use in the expression. basically, on my datatable i added an unbound column AGE. when i display records, i just want the age textbox to be populated with the computation of the person's age based on birthdate.

View 7 Replies

Regular Expression Validator In .net/asp.net Custom Expressions?

Apr 19, 2011

I want to make sure using the custom expression validator that no ' or " can be used i tryed using [^"'] but whenever i put normal letters it doesnt work either.

View 1 Replies

AddressOf' Expression Or Lambda Expression

Feb 22, 2009

From this code

[Code]...

If I put New Action(AddressOf PrivateMesage), then I get the following error: Bounds can be specified only for the top-level array when initializing an array of arrays. on the following code

[Code]...

View 2 Replies

Converting Arithmetic Expression With Operators In A String To An Operable Arithmetic Expression

Feb 5, 2010

I must convert string data from a CNC that is arithmetic expression to a number that I can use in a VB application that I wrote. The following is what I get out of the cnc. [18722*65536+19377]/67108864. I need to evaluate this expression in my VB ap. The format of the string is not always the same as what I have illustrated.

View 2 Replies

Equivalent Expression In VB For This C# Expression ?

Jun 28, 2009

I would like to know the equivalent expresion in VB for this C# expression: Container.TotalRowCount > 0 ? Math.Ceiling(((double)(Container.StartRowIndex + Container.MaximumRows) / Container.MaximumRows)) : 0

View 3 Replies

Ombine Two Linq Expressions Of A Custom Type (i.e. Expression(Of Func(Of MyClass, MyClass))

Nov 24, 2010

I have a list of properties and values that i'd like to use to dynamically build an Expression(Of Func(Of MyClass,MyClass))

I can run through the list and create each Expression by itself, but the only way I know how to combine them would be to use Expression.And or Expression.AndAlso, but that returns a BinaryExpression rather than my original Expression(Of Func(Of MyClass,MyClass)).

View 1 Replies

Using A Custom Timer In A Lambda Expression In Its Own "New" Statement?

Oct 1, 2010

I have a custom timer that acts like a Wait for some number of milliseconds and then execute a function. It looks like this:

Public Class MyTimer
Inherits Timers.Timer
Public Event Done()

[code]....

(So, every one second, Timer checks if TextBox1 is empty. If it isn't, it displays a message box and stops checking.)I get a warning that Timer is used before it has been assigned a value, but it is used in the statement that assigns its value. The timer's interval is required to be greater than zero.

View 2 Replies

.net - Getting The Regex Expression?

Apr 8, 2011

i have a string similar to this one:

Hi, <<
ame>> <<surname>>, this is an example << est>>.

I what a regex that match and split this string in:

"Hi, "
<<
ame>>
" "

[code]....

I tried this one: (<<*.*?>>)|(>>*.*?<<), but doesn't work.

View 2 Replies

.net Equivalent Of C# Expression?

Jan 10, 2012

What is the vb.net expression of this c# expression ?

Frame.GetController<ShowNavigationItemController>().CustomShowNavigationItem += new EventHandler<CustomShowNavigationItemEventArgs>(WindowController1_CustomShowNavigationItem);

View 4 Replies

Asp.net - Use Class Name As Expression?

May 28, 2011

I'm not sure if this is possible but I would like to associate a class name reference to a shared member method / property / variable. Consider:

Public Class UserParameters
Public Shared Reference As Object
Public Shared Function GetReference() As Object

[Code]....

In another part of the program I would like to simply call UserParameters and have it return Reference either by aliasing GetReference or the variable directly.

I am trying to emulate the Application, Request, or Session variable:
Session(0) = Session.Item(0)

View 1 Replies

C# - Lambda Expression: CS To .Net?

Aug 24, 2011

I am dumb founded at this statement....maybe its just too many hours/days of doing C# to VB.Net conversion but i am drawing a blank on this conversion.

List<string> sColors = new List<string>(this.CustomPaletteValues.Split(','));
try {
List<Color> colors = sColors.ConvertAll<Color>(s => (Color)(new ColorConverter().ConvertFromString(s)));

What i have so far:

Dim colors As List(Of Color) = sColors.ConvertAll(Of Color)(....)

As you can see its the content of the lambda that i am hitting a brick wall with.

View 3 Replies

C# - When Are ASP Expression Builders Most Useful

Jun 16, 2009

I saw an example of using Expression Builders, and creating your own Custom Expression Builder Classes here: [Url] However, I fail to see the value in using this approach. It doesn't seem much easier than programmatically setting values in your code behind. As far as I can tell, the only thing you can do with them is set properties. Maybe they would be useful for setting defaults on certain controls? Can anyone shed light on where this ASP.NET feature becomes powerful?

View 4 Replies

Convert VB6 Expression Into .Net?

Nov 29, 2011

The code you posted while similar to VB6 has method and syntax that is very similar to Crystal Reports Scripting Language

[Code]...

View 1 Replies

Equivalent C# Expression In .net ?

Feb 19, 2010

i didn't want to trust this one to any number of online conversion websites that I often use.I don't need to convert the declarations, just the expression '(byte)((flen & 0xff00) >> 8)'in

byte[] sendFrameData = new byte[280
ushort flen
sendFrameData[7] = (byte)((flen & 0xff00) >> 8);

View 2 Replies

Expression Does Not Produce A Value

Oct 28, 2009

'I am having trouble with the line "senda = suba(sendaobj, EventArgs.Empty)". [code]...

View 12 Replies

Expression Does Not Produce A Value?

Aug 25, 2009

Here's the

Sub DestroyUser(ByRef Victomcheck As Integer, ByRef Victorcheck As Integer)
Dim num As Object
WriteSub("destroyuser")

[Code]......

View 5 Replies

Expression Is Not A Method

May 4, 2012

I don't know what I have done wrong in this code using vb 2010 express, well here it is anyway

MsgBox(10)
MsgBoxStyle.Critical()
MsgBoxStyle.OkOnly("ERROR")

I get three errors of expression is not a method

View 7 Replies

Expression Not Producing A Value

Dec 16, 2011

Expression not producing a value [code]...

View 7 Replies

For Each Expression Evaluated More Than Once?

Nov 12, 2011

In the following
For Each <reference> IN <expression>is <expression> evaluated for each iteration of the loop? Specifically, if <expression> is costly to evaluate, would it be wise to evaluate it once before the For Each statement and keep the result in a local variable to use in the For Each statement?

View 7 Replies

How To Use WPF And Expression Blend

Mar 17, 2012

Does anyone know any good places to learn how to use WPF and Expression blend ?

View 1 Replies

How To Write If Not Expression

Nov 11, 2011

This is ok in VB.NET: If(hash.add(Numbers[index]))However how do you write the following in VB.NET: If(!hash.add(Numbers[index]))

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved