I have a program with three Textboxes that have numbers typed in as text. I have them dimensioned. When I try to use them it gives me an error "Cannot convert a String to a Double". I have tried to use a=CDBL(textbox1.text) but that did not fix it. Is there a solution to this problem?
Sub Test()
Dim a,b,c
a=Textbox1.Text
[code].....
I found a code snippet online[code]...
But the problem is that the text it outputs isn't properly formatted. It must adhere to a predefined width.
I am trying to bind a textbox to a binding source (using the IDE DataBindings Editor) and it works fine except for one thing: if I delete the text I get the subject error. What I want to happen is the datarecord field be updated to a dbnull value -- how do I get that to happen?
View 4 RepliesI've created a private sub called addIRCRoom Which makes the Tab and the TextBox, but i can't figure out how to update the text in the TextBox.I've made this function to handle it:
Private Sub displayOut(ByVal Channel As Object, Optional ByVal User As String = "", _
Optional ByVal Message As String = "")
Channel.Text = "<" & User & "> " & Message & vbCrLf
End Sub
But i just get this error all the time: "Public member 'Text' on type 'String' not found."how to update the text
For some sort of reason, which I can't seem to spot, this fails and I get a #Name? error. When I tried to do this, I use pretty much the same code in another place in my form; the only difference is the "cbo" and the names of my txt and alike.
[code]...
Can anyone spot my error? What I wish the code would do is when I Select something in my cboVarenummer, the TextBox txtVarenavn changes its text to what the sql statement returns.
Imports ATSMS
Imports Scripting
Imports System.IO[code]....
this is my code n it works well but wen i want to insert multiple textbox value then it gets an error.
i am trying to add the the text in the textbox with a stored procedure in mysql this is the error: [Code]
View 14 RepliesI want to use text to speech to say what is in my textbox. I have added the reference into the solution (MS speech object libarary) and inserted the "imports speechlib but i am getting an error when building.
error BC30451: Name 'voice' is not declared.
according to turtorials i have everything right, but i am still gettiing this error. here is my code;
Imports SpeechLib
[CODE]...
The very last "voice.speak" is the problem child.
I have a windows application written in VB.Net 2008, framework 3.5. This app is running on 2 remote desktop servers. I have one user who receives error, This operation has been canceled due to restrictions in effect on this computer. when entering in a text box. When he uses the application on Server 1 he does not receive the error. It only happens to this 1 user on one server.
View 10 RepliesLblPPG.Text = Val(TextBoxPP.Text) / (TextBoxQTY.Text)
This is the only way I know how to obtain the info I need for this equation but if generated again with no input from the textboxes I get an error. Is there anyway to bypass this if its generated a second time with no inputs?
I would like to be able to (on button click) start a countdown (in minute intervals, that also updates every minute) from the current time to a timespan that already exists.I read somewhere there are a few different timers, I need a solution that I can use in windows phone 7 as well as in a windows forms application.I'm aware there are a lot of existing questions, I just can't seem to find one that does this exact thing if someone could point me in the right direction even?
View 1 RepliesI have a predefine time value of we'll say 1:30 PM. Im wanting to start a process at 5 minutes till 1:30 which would be 1:25. So this is what Ive tried
Dim MyTime As System.DateTime
MyTime = TimeString
MyTime = MyTime.AddMinutes (-5)
[code].....
I have an unbound datagridview with three columns already setup. I load data into a dataset. I bind the dataset to the datagridview. My issue is that new columns for the dataset is added to my datagridview. I would like to place the datainto the predefined columns. I have tried this:
Dim
index As
Integer
[code].....
I'm programming a basic slot machine in Visual basic, and want to use a for loop to randomly choose the image for each slot, display the image in each slot, and change the slotName variable (so I can check later on which symbols are in the slots) for each slot. The problem I'm finding with a for loop is that the variables and objects for each slot have different names (slot1Name, slot2Name, slot3Name, lblSlot1, lblSlot2, lblSlot3, etc). Is there any way I could have could something like:
currentSlotName = "slot" & i & "Name"
This is the code at the moment, this code is repeated (with different variable and object names), for each of the 3 slots, which is pretty inefficient.
' Randomise numbers and assign images to slots based on random numbers, if the hold isn't on
' Slot 1
If Not held1 Then
slot1Value = Int(Rnd() * numbersGenerated + 0.5)
Select Case slot1Value
[Code] .....
I'm working on a little board game we play here in Jamaica just to see how it would look and as a sort of challenge for myself while on vacation. I'm however stuck on how to make my markers (PictureBoxes - two per player) move along the board.So heres my problem; I have 40 slots where the picturebox can be moved to (eg picturebox1.Top = 324, picturebox1.left=243). Now moving to these slots are determined by the roll of a pair of dice. How can I assign a variable preferably an integer for each slot so when the dice is rolled I can just do a little addition as to where the markers can be moved?
View 7 RepliesI want to write the DS into a txt fie with predefined field lengths.
Code:Dim ds As New Data.DataSetda.SelectCommand = New SqlCommand da.SelectCommand.Connection = conn da.SelectCommand.CommandText = "SELECT * from Samp1" da.Fill(ds, "S1")
[Code]...
I am trying to split text in a TextBox and I get this error {"Index was outside the bounds of the array."} while using this code
Dim s As String = Me.RichTextBox2.Text
Dim parts() As String = s.Split(":"c)
Me.TextBox1.Text = (parts(0))
Me.TextBox2.Text = (parts(1)).Trim
I am stock, it will work fine for a couple of reads, since the Me.RichTextBox2.Text text changes constanly but every now and then I get the error
There is some way to open a file and fill it with randon information until it reach a determined value?
View 19 RepliesIs there an approach to preselect the items in checkedlistbox on formload.
1) I have a form with checkedlistbox
2) items in checkedlistbox are "One" "Two" "Three" "Four"
3) i have a string str="One,Two"
at formload i want these items in the checkedlistbox to be selected.
is there a way other than selecting these item by looping through the items in listedcheckedbox.
i.e., as we can get the selected items by using ".checkeditems" property
i need a way to select the items of checkedlistbox from a string or array in single statement without looping.
I have a need to be able to communicate with a VB6 application (I have the source code) whilst it is running. I just need to get it to display some predefined forms. Any tips on how I could achieve it. I was thinking along the lines of using Sockets.
View 1 Repliesis it possible in design mode to set the textbox text property to the text property of a textbox in a different form in vb.net?
View 1 RepliesI have made a simple data entry program, and I need to add a print option so that the info can be printed on a predefined layout. Is there a tutorial on how to do that? I know in MS Access is a form design. but I do not see such a function in VB 2008 Express Edition?
View 5 RepliesIs it possible to dynamically direct a particular control's event to use a predefined method.For example.I have a form which I dynamically add controls to, let's say, TextBox1,TextBox2 and TextBox3 and a module which as 3 routines, Method1, Method2, Method3. When I dynamically add my controls, eg TextBox4, I want to choose which of the 3 methods I want mapped to which event.
.
Dim objTextBox1 as new TextBox
dim NameOfRoutine$="Module.Method2"
Form.Controls.Add(objTextBox1)[code]........
I am writing a mvc 3 application and part of its function is to send out confirmation emails along with an assortment of other emails.. I have the body's for the different types of emails stored in a database table.. Getting the values out of the table and dropping them in a email body using System.Net.Mail isnt a problem at all... What I need to do is somehow put somekind of variable marker in the body which is in the database table and then somehow parse the body text when its dropped into the email body to find the variable marker and put the correct value in it's spot..Code snippet of what I have so far is below:
Keep in mind that this will be a rather large body and there are a few places values will have to be dropped in.. I was thinking of having it use something like this:
Long mail body ^^Name^^ has been approved for classes starting on ^^Date^^ at the ^^Place^^ located in ^^Location^^..
When the code loades the text from the body when ever it comes across a variable marked with ^^ it would put the correct information in its place...
Dim _content As email = db.emails.Where(Function(f) f.ref_name = "Confirmation")
Dim _body As String = _content.email_body.ToString
Dim SmtpServer As New SmtpClient()
[Code]....
i want to make an application to play movies etc at predefined time. i want to add the facility of overlaying graphics also.
View 1 RepliesAs an update to a program I had made awhile back, I am trying to auto-resize the image to meet the requirements of my application without having to manually do it elsewhere. I already can adjust the quality/compression for disk storage, but I want to resize the image so I can save the quality of the image.
So how do I resize an image to 1920*1080. (I want to check the image first to make sure that the image is in fact larger then 1080p before I resize it.)
I'd really like the solution to work in a DLL project so that I can move my application from the Windows Forms to the WPF UI.
1 within each section of a SplitContainer. The left hand side will be for inputing text that is copied/pasted from a word, excell, or text file.The right hand side would be for my output. What I would like it to do is return just the rows from the left hand side that contain a match to any one of the predifined strings. This will be used to search large lists of company names and circuit IDs and return the rows with matching namesSo far I have the form created, the Splitcontainer in place along with the richtextbox on each side and a submit button at the bottom.
View 12 RepliesHow to set values to a predefined combobox column in datagridview i.e., I want to set some values to this column other than binding
View 1 RepliesI can't seem to add data in my DatagridView by having set the Columns, this what my datagridView looks like:he combobox you see where filled by this
ReaderQuery("Select ChargType from ChargeType")
cmbCharge.Items.Clear()
While dr.Read
[code].....
I have an interface that i have declared some of the basic internal functions, subs, properties, etc. This interface is then implemented into 3 pre-defined classes. These classes are end-use classes so they dont get derived or inherited elsewhere. I am trying to create a generic shared class that can operate on each of these 3 predefined classes and potentially more as long as they implement the interface.
[Code]...