I have a basic calculator that Multiplies A and B to give a result of C.I want to be able to once multiplication occurs then to add the data to 3 column listview where in Colum 0 the value of A will be entered, Column 1 the Value of B and Column 2 C.For every operation done then to follow on the next row and so on until Memory Result button is pressed, which would mean the end of transfering the data.
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I've got the bulk of a calculator up and working, however it doesn't like multiple operations. For example 3x5+2= brings up 10 (i.e. 3+5+2) and even doing it in two parts doesn't help, if I enter 3x5= I get 15 then +2= gives me 32 (i.e. 3x5=15 15x2=30 30+2=32). Also I am getting trialing zeros in my command line I can't debug.Note that lblcommandline displays the whole function and lbldisplay just displays the current imputted number.
Public Class frmSimpleCalc
'This code is run when the program starts. Here we 'declare' or basically, define which variables we want, what they are and such.
'So, for this example, we need two variables. The number we are CALCULATING and the one which we will CALCULATE FROM.
Dim lCalcNumberMaster As Long 'The master number is the solution, the number stored and displayed when we click equals.
[code]....
I am having some trouble with getting my devide and square root operations working. when i hit say 10/2 all i get in my text box is "infinity"
'calculator program v.1.0
'programer: Michael Murray
'version: 1.0
'date: 21 march 2012
[CODE]...
I am trying to make a calculator that accepts multiple operations, similar to the calculator found on Windows.
View 6 RepliesI am running into a problem where my CRUD operations on an entity sourced from an SQL View is not calling the generated methods for said operations.I press "Delete" in a ListView on an item, connected to a LinqDataSource. It throws an error saying that it cannot perform the operation because it affects multiple base tables. That's fine, I understand that. What I don't understand is why this code won't run on insert/delete:[code]In debug, it won't break on the method, so it's not being called. I even did a test where I deleted the entity by attaching/DeleteOnSubmit and still no-go. Is this a bug or am I not handling the right method? I can handle a data source's OnDeleting event, cancel, etc. (which is my temporary fix) but I'd really like to catch ALL delete operations in a central place no matter how I delete the entity.
View 1 RepliesI get some very generik trouble need to implement List View with Image in SubItem. All can be very fine ....But I need to use Virtual Mode. Whatever I search I haven't still found working solution's. I have found some C# code that seem's do that. But I can't convert it in VB.Net. let's explain detaly.
View 2 Repliesthe VB .net experts. I added the following code and I get an error as shown below.
[CODE]....
I want to develop a tree view and list view form by using vb6, how to construct a tree view and list view form?
View 1 Replieshow to view explorer in list view control?
View 1 RepliesI am loading a series of JPG images into an image list then using that to fill a list view. My program is using ALOT of memory by doing this. What would be the easiest way to add the images but take up less memory/time?
View 3 RepliesI have added a list box and now i need help to display the data about my employees in the list box. How am i supposed to do that, do we have to put in codes or need to use that small arrow near the list box.
View 15 RepliesI am getting two errors for "expression is not an array or method, and cannot have an argument list," When debugging, the formula works quite well. However I will lose points for blue squiggly lines. I am not allowed to use any built in functions like math.
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Is it possible in vb.net to list view and possibly alter the contents of the ram on a computer, I presume this would have to be done through api because of the lack of access to the ram on xp +.
View 1 RepliesI have a listview populated from a database (im a bit of a novice with programming) and i want to be able to type a surname into a textbox and search the listview for that person. I can easily populate textboxes from searching the database but am unsure how to "filter" the listview so if i type "jones" into the surname box it only displays the people in the listview who have the surname jones.
View 3 RepliesPublic Class frmListView
'***************************************************************************************************************************
' The code below is for multi select of items from list view by holding down the control key! This does not work!
[Code]....
Can anybody tell how to list view opened files in VB.NET.
The opened files should be seen in list view at the left part of GUI.
Okay i need some total help on this list view What it has Columns
What i Need help with
1------Save(From a Textbox1,Textbox2, Droplist.seleteditem.text
2------Contains(If Textbox1.text has a item from Column 2 then it replace Textbox1.text with Column 3)
here is an example with Contains
[Code]...
I am wondering, what is the most efficient way to print from a listview. The listview's values are loaded from a database, and I would like to print from that listview. So far I have tried moving them to a text file and printing the text file, but Windows said that "The file is to large for notpad" even though I was not using notepad.
Is it advised to create an array of structures and then load everything into the array? If so, do I create the array dynamicly?
This is my code to open a openfiledialog and put every line into my listview and skip if there is any newline character.[code...]
View 3 RepliesNot sure what I did here. However it seems to work.. Yet what happens is I must go into the List View hit Add. Then Hit Add again to make it able to fill out the text boxes. What should I do to correct the double click of add button? My text boxes are not enabled in properties if that is a key.
Quote:
Public Class Form7
Dim blnAdd As Boolean
[code].....
I have list of columns in DataTable to be added in list view. I have specified to the listview of columns in the order to appear and Datas as well.[code]
View 1 RepliesI am using a ListView control to display Pictures along with description and caption. I used to save the full path of the image in the url field, so when I display them in the ListView I don't need to edit anything. Now I am using something like:
HttpContext.Current.Server.MapPath("~/photos/") + savedURL
How can I edit my ListView to make it show the images?
I used to do the same to GridView when in GridViews RowDataBound event I manipulate the contents like:
Dim photo As New Image
photo.ImageUrl = "~/photos/" + e.Row.Cells(TheCellNumber).Text
e.Row.Cells(0).Controls.Clear()
e.Row.Cells(0).Controls.Add(photo)
I have a list box like this,
<asp:ListBox ID="ListBox1" runat="server" Height="175px" Width="213px">
<asp:ListItem Value="all">All</asp:ListItem>
<asp:ListItem Value="programmer">Computer Programmer</asp:ListItem>
[code]....
and a Grid View like this,
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="XmlDataSource1">
<Columns>
[code]....
Grid View is getting values from a XML & XSLT file. What I want to do is, when user selects suppose Computer Programmer from list box, the grid view should get updated with the results of only those have this program. How can I do this? Do I have to bind the xml with List Box?
I want to bind data to telerik list view, if the database four record,each page of list view show 3 record, that means it will have an record show on 2nd page then still got 2 record was empty, so i want to show the first, two record under the fourth record,
View 1 RepliesI needto change the icon of the selected list view item upon double clicking it and also is there a way to change the ablolute path to the
project folder where the icon is to relative path so that even when you install it to other pc it will work
how can i edit the list view in run time
View 1 RepliesI've got a list view that opens items inside a folder and displays them. I want to know if there is a way to have the list view display the icons aswell, maybe using shell32 or an imagelist. Here's the
[Code]...
this is the codes but not working
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
[code].....
i used the sorting method at msdn but it isnt nice. it sorts in string format like 1,11,12,2,21,23,3,31,32 etc. is there any other sorting method.
View 3 RepliesHow to insert list view to sql server database directly
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