Inline Calculator For A Textbox?
Sep 16, 2010I need a inline calculator for a textbox.
When the user types 45*10+5 i need to have the answer displayed as 455 in the same textbox
Any one with a briljant idea of how to sovle this.
I need a inline calculator for a textbox.
When the user types 45*10+5 i need to have the answer displayed as 455 in the same textbox
Any one with a briljant idea of how to sovle this.
I want to create a simple calculator using only 1 textbox , 1 button and 1 label, but I don't know how to create the code.
for example if i write : 53+35-33=
and if i press the button it will calculate and the answer the label will show the answer (55).
I am trying to make a calculator with one textbox and 16 buttons. Buttons are:(0,1,2,3,4,5,6,7,8,9,+,-,*,/,=,C). So here is code for now:
vb.net Private Sub nula_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles nula.Click
TextBox1.Text = TextBox1.Text & 0
End Sub
Private Sub jedan_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles jedan.Click
TextBox1.Text = TextBox1.Text & 1
[Code]...
When I add those numbers and operators its easy, but how make operations really work now?
I am building a scientific calculator.
1. After I clicked the Sine button, I get the result in a textbox.. When the result is there, for example: 1 radians Sine = 0.8414.... I can still put numbers at the end of this result.. like button 5 will be 0.84145, so how can I disable that?
2. After I get the result from a calculation, the textbox should be cleared when I insert a new number.
so i am new to v basic and as you can see in the picture below that i have 2 textboxes just to put in them 2 numbers and then do mathematical calcualtions on them and a label up there that shows the answer so i wanted to make 1 textbox to type in the 1 st number then press the symbol for example + and then type the 2nd number and then press equal so the result is formed in the same textbox the only problem is idk how i searched google but i couldnt understand here is my source code
[Code]...
I am trying to develop a simple math calculator that will allow the user to input the right-hand-side (RHS) of an equation into a textbox on the application and have the application evaluate the expression for a given value of x, which is also input
into the application by the user via another textbox.For example, if the user wants to evaluate the following expression,
y = 3 + 4*x + 5*x^2
then they would input into the textbox the RHS of the equation
3 + 4*x + 5*x^2
and then enter a value of x into the another textbox and click on the calculate button.I tried this:
answer = EquationTextBox.Text
but it doesn't work.
i have an VB.NET application with few functions i need to debug (like ie. Assert in C#). Is it possible and how i do that ?
Public Shared Function createNumberArrayList(ByVal startValue As Integer, _
ByVal endValue As Integer, _
Optional ByVal isBackwards As Boolean = False) As ArrayList
[Code].....
Basically what i need is to enter few values and see if the function works and returns proper ArrayList.
strtest() = objFile.ReadToEnd.Trim.Replace(vbCr, "").Split(vbLf).Distinct.ToArray
I created this command from a few examples which reads the text from a StreamReader, Trims, splits on EoL, and returns a unique list. My next command is a sort. I couldnt figure out how to add a sort to this command. Its really not that important but I was curious if there�s an easy way.
Additionally if there's a better way to take a text file into an array or collection I'm all ears.
Tell vb.net equivalent of following method:
CODE:
Which on build in visual studio 2005 gives an error.
I know that this should probably be under mobile development .. but no one seems to use that thread ... so anyway .. here is what i am trying to do:
TreeView1.LabelEdit = True
With TreeView1.Nodes.Add("asd")
.BeginEdit()
End With
The above works for a windows application ... but i was wondering how i could do this on a windows mobile application as LabelEdit and BeginEdit don't exist!
This is my problem. If I write this -
[Code]...
But I'm just out of my wit why this code, written to do the same thing is not working -
[Code]...
I am trying to do an inline IF statement inside a asp:Repeater control to add a class to the first item, but I can't quite seem to figure it out. Basically the code I have right now that is not working but should give an idea of what I'm "trying" to do looks like this.
<asp:Repeater ID="rptrTabRepeater" runat="server">
<ItemTemplate>
<div class="tab <%= If Container.ItemIndex = 0 Then %>highlight<% End If%>">
'Other stuff here
[code]....
I have tried using the OnItemDataBound event but the delegate interface cannot return a value. If I'm going to do anything from a code-behind function really it would just need to be an "echo" kind of function which I wasn't quite sure how to get the item index in a code behind function.
EDIT: The compile error I am getting is:
Compiler Error Message: BC30201: Expression expected.
Is there any way to include some kind of auto-generated comments as part of implementing an interface? Studio automatically fills the headers for the methods, can I auto-fill some sort of code comments at that same time? (to help remember what each interface method is supposed to do without looking at external documentation.) For example, if I could get the interface's XML Intellisense markup headers to copy from the interface down to the implementation's level.
View 3 RepliesI have an element that I'm trying to style:
<tr runat="server" id="row" >
...
</tr>
And I set the style programmatically:
row.Attributes("style") = "background: #cccccc;"
I get this output:
<tr id="SearchResults_myRepeaterPlain_ctl04_row" style="background: rgb(204, 204, 204) none repeat scroll 0% 0%; -moz-background-clip: border; -moz-background-origin: padding; -moz-background-inline-policy: continuous;">
Where is all that additional style information coming from, and How can I stop it?
Just out of curosity, what's wrong with the following line. I'm trying to create a range of integers (3,4,5...,50) and then filtering out only those numbers which are not divisible by any integer less than themselves (bruteforce way of finding primes).
Enumerable.Range(3, 50).Where(Function(x) Not Enumerable.Range(2, x - 1).Any(Function(y) x Mod y = 0))
I would like to know if there's any way to specify an inline array (lets say of strings) to custom attribute on a property in vb.net.
I have the following example that doesn't compile in vb.net (.net 1.1):
Attributes.ManyToOne(New String() {"a", "b", "c"})> _
Public Property PaymentTerms() As PaymentTerms
[Code]....
I get compiler error when I feed the array to the custom attribute in vb.net. I have no problem in C#, just vb.net. What is the correct syntax in this silly language?
tell vb.net equivalent of following method:
C# Syntax
public class RecentPosts : Control
{
[code].....
Suppose we have a class like:
Public Class Question
Private Shared _field as Integer = CrazyIntegersRepository.GetOne()
' Some other useful things go here
End Class
And the method GetOne throws an exception... How can we manage that? Is a good practice to rewrite that into a static constructor? When is the GetOne method going to be executed if we leave it there in the inline _field declaration?
Check out this code sample from Scott Guthrie's blog: [URL]...Notice item is a reference to the currently executing item in C#, what is the equivalent keyword in VB.NET?
EDIT: I should add here is my actual implementation of a method accepting a template:
Public Function RenderInlineTemplate(ByVal template As Func(Of RazorSamplesWeb.Models.SamplesModel, Object)) As IHtmlString Return New HtmlString("<div style='display:inline;'>" + template(Model) + "</div>")
End Function And I get this error: Compiler Error Message: BC30201: Expression expected.
[Code]...
I'm working on a legacy vb.net application that does most of its work using inline code ( Within that script I need to access functions from a third party .net dll. The dll(s) themself are stored in the GAC. Before I started the page looked something like the following
[Code]...
I'm trying to change the value in an editform before it becomes visible to the user. However the aspxgridview is always overwriting this.
This is my solution:
Protected Sub ASPxGridView_ItemList_HtmlRowCreated(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxGridView.ASPxGridViewTableRowEventArgs) Handles ASPxGridView_Items.HtmlRowCreated
If (e.RowType = GridViewRowType.EditForm) Then
[Code]......
im sure im mis-wording the concept but here it is anyways. I know in CSharp you can do
el.AppendChild(new UISize(file, "TSize") { CX = 95, CY = 20 });
which declares a temporary bucket variable and then assigns the associate property values to the variable. Which then sends it to the XMLElement AppendChild method. What is this design concept called? What is the conversion to VB.Net? I have tried using my own online utility that does a 90-95% conversion rate from C# <-> VB.Net. It has failed in this instance, and so need a hand-up on what i am looking to do to convert this from C# to VB.Net. I would really like to not have to do a long-declaration of a variable with assignments, if at all possible.
I have an existing stored procedure that need to be used now as inline SQL statement in my VB console application. How do I change it?
Stored Procedure:
:Setvar CUSTOMDBNAME "My_DB"
USE [$(CUSTOMDBNAME)]
GO
[Code]..
I would like to create a HtmlHelper function for a specific kind of dropdown that appears on many pages in my app. I'm basically just trying to add some decoration around the existing DropDownList function, but it's being encoded.[code]....
but I'd rather make use of VB's inline XML. How do I get the results of DropDownList to not be encoded?
My problem is I used to be able to do this,[URL]..and CallAFunctionThatReturnsBoolean() will be called in Page_Load when the control's DataBind function gets called implicitly and the div's visibility will be set correctly.
Now for some reason this doesn't happen anymore, and to make it work I would have to either call Page.DataBind() in my base Page class or Me.DataBind() in the Page_Load sub in that page, but I don't really want to do this, especially in the base Page class because then if I have a page with let's say a DataGrid in it that I already call the DataBind() function explicitly, then this DataGrid will get bound twice, once from Page.DateBind and once from the explicit call datagrid.DataBind().
In TSQ IF MyVal IN (1, 2, 3, 4, 14) BEGIN ... END .Is there a way to do this in VB.NET? Is it possible to check for the existence of an integer in a set of integers inline? Such as: If MyVal in (1, 2, 3, 4, 14) Then ... End If
View 2 RepliesI have managed to crunch down a several line code to this
For Each gal In galleries
With New HtmlGenericControl("div")
.ID = gal.Header
[code]....
I cannot find any where how to reference back to the object i am currently working with to add the control back to galleryContent' - Using plain me crashes the whole web server...Using does not offer the shorter hand of just using . - But it Using the only way to do it?
I've read several articles and questions/answers that conclude the best practice is to let the JIT compiler do all the optimization for inline function calls. Makes sense. What about inline variable declarations? Does the compiler optimize these as well?
[Code]...
Of course I prefer the latter because it's easier to read and debug, but I can't afford the performance degradation if it exists. I have already identified this code as a bottleneck -- No need for retorts about premature optimization.
I'm starting a new project; trying to be more strict than previous ones. I've set warnings as errors in the build I've added FxCop to PostBuild. The one last thing on my list os require people to add inline docs for all classes/non-private methods/properties.
View 2 RepliesI am trying to use xml documents to store data for a movie database, but am having an issue
here is the code I am using
Imports <"...movies.xml">
Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
[Code]....
Why do I get that xmlns = "" in the movie parent node?
Of I remove the parent node from the movieAdd variable it puts xlmns = in all the nodes