I am having trouble converting a string value to a text box name.The text boxes are created at runtime and I need to get the text value out so I can store them. I keep getting the error [code]
View 5 Repliesbasically i have a form with a datagrid set to readonly. i have 5 textboxs.when a cell is clicked its value in the row is output to the following textboxs on the form As the datagrid is set to readonly i want a user to be able to update table/ dataset via the data enter using the textbox, then to be re-fill the datagrid with updated data.....If that makes sense.i have tried looking many examples that date back from 2006 to 2008, has there been any change in .net framework that can make this similar.
Private Sub DataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles maingrid.CellClick
Dim i As Integer
i = maingrid.CurrentRow.Index
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I'm having a problem converting a string of letters to a string of numbers. I've tried:
Dim A As String = ""
Dim strOutput As String = ""
Dim X As Integer = 0
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i am converting a string to double?i would like to know in advanced whether it would case an error to convert a string to a double. for example if i try to convert "hello" to a double, it would give me an error. is there a way for me to know ahead of time whether converting something will cause an error?
View 2 Replieshow to convert a number value to its string value (ie.,1198.00 should be interpreted as Thousand Hundred and ninety eight)
View 2 RepliesI am returning one row from the database, and I want to convert the SQLDataReader to a string format, so I can pass it to my webservice.
Dim rdr As SqlDataReader = sqlcmd.ExecuteReader
If rdr.HasRows Then
rdr.Read()
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There is a lot on the internet about converting a int to base 2 string, but I need to convert it back.
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I have made calculator in visual basic that can calculate the costs of products. You first select the type of product. Then you insert the dimensions. After that it calculates de costs. The type op products are stored in a Access database. In this database is stored a formula as a string. The problem is that i can't caculate the selected string with the formula and the given dimensions.
View 10 RepliesI am trying to convert a string of binary into hex. I have tried several ways and none have worked. This is my latest try. The code runs but doesn't appear to do anything.
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I am using the .NET Framework 2.0, and I am trying to code a client bot for a game called Minecraft, Originally written in Java, there have been quite a few people who have made custom multi-player servers for this game, Primarily in C#, or in a language that i've never heard of, such as Pascal.I'm looking right now at sending this:
Packet ID: 0x00 (0) As Byte
Protocol Version: 0x07(7) As byte
Username: "umby25" As String
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"Byte cannot be converted to 1-Dimensional array of byte"
I don't understand why this whole thing would work in all of the other programming languages, but not Visual basic.I have tried converting the string using the same method that one of the open source C# servers used, and it failed, telling me that the dictionary does not contain that or something.
How can I convert a string into an array?
The values are passed as a string:
Dim strInput as string
strInput = "Tom, John, Jason, Mike"
My error message is: Value of type 'String' cannot be converted to 'System.Array'
I was trying to figure out how to convert a string (that the user would input to the program via a textbox) into actual code for the program to compile. For example, if the user was to enter: (5*100)+(20-3). How could you take that inputted string, and have the program solve it and return the value?
View 3 RepliesI have a combobox that pulls a list of values from a database. When a new entry is entered I want an entry in the combobox to read "New record". However, from what I have seen I can only insert and object, such as a DataRow, into the combobox. Is there anyway I can convert a string to to a DataRow, or some other object and insert it in to the combobox? I know there is I am just rusty on my vb.
View 3 RepliesI'm using AxVLC to try to play a video from my.resources and I can't seem to convert the binary to a string for it to work...This is what I have so far - produces no errors, or results (nothing happens).
Private
Sub
Button1_Click(ByVal
sender As
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I'm trying to convert a chosen color into hex base 6 to save to a config file for later use, and that part works, but when converting back to integer to use for a color, it gives me an error about incorrect base.
Dim hex_color = System.Drawing.ColorTranslator.ToOle(ColorDialog1.Color).ToString("X6")
Dim color_int As Integer = Convert.ToInt32(hex_color, 6)
Panel1.BackColor = System.Drawing.ColorTranslator.FromOle(color_int)
The message does not appear if a number is not entered - why?
Dim
IAL As Double
Dim inputIAL As Double
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I was trying to convert from Double to String and everything working fine. But when I tried some bigger number with fractions in it. I got the number but rounded. I tried something like that:
Dim dd As Double = 1235212435.3453636
Dim str As String = dd
MsgBox(str)
But what I got is 1235212435.34536 instead of 1235212435.3453636
I am writing a tic-tac-toe game. The part of the code that I am having trouble with is randomly populating an "O" if the computer cannot win or block.
The code I have is;
Dim square As Integer = 6
Dim middle As Object = "grid" & square
Dim grid As Label
[Code]....
Unable to cast object of type 'System.String' to type 'System.Windows.Forms.Label'
I've got a richtextbox but want to check the keypresses before they come in the textbox. So I thought of using the KeyPress event from the form, checking that key and than writing it to the richtextbox with the Text property.But the KeyChar is a char while the Text property expects a string, and when I convert the KeyChar to a string(ToString) it gives a error.Does anyone know how to fix this or has anyone another idea for checking the presses before writing them?
View 4 RepliesHow to convert a md5 string value to number?
View 1 RepliesFirst: Ok so I'm trying to do a project in my beginning VB .Net class. We are supposed to be taking information from 5 different sections of a form and store them into an array and then call upon them later. We have Name, Address, City,State, and Zip. How would I go about saving the information into an array and then calling upon it later through File IO?
Second: I'm having a problem converting my string into a decimal. Whenever I calculate the price of the order I get 3-4 decimal places. Here is a little snippet of my code for the this:
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I have dimmed pricewithout tax as a decimal and stateselect as a string. The stateselect is based off a drop down list.
I have the following string:
20111209
How do I turn this into a DateTime Value? I've tried Convert.ToDateTime(s) normally but it keeps yelling that I'm doing things wrong because the string doesn't look like a datetime value.
I've been up for nearly 24 hours now. Trying to program an application for a game I have been playing.I've run in to a problem, I'm not sure how to solve.I have basic knowledge when it comes to VB (college class) so bare with me.[code]My only Idea would be loops to figure out where each of the edited numbers are in the array, But I was looking for something simple.Also, would it be easier to work with the bytes rather than edit them in string form?
View 4 RepliesCan someone please tell me how I would convert a string of "Thu Dec 13 10:00:06 2007" to an actual date?
View 6 RepliesI'm having another small problem with an output i have. I got such a good response last time i thought id quickly ask again on here
Basically i'm using Windows WMI to gather details about remote workstations. I have the "LastBootUpTime" from "Win32_OperatingSystem" but it is returning a result like... "20090310085123.125597+000". Is there a nice and easy way that VB.NET can convert this into a readable Date and Time?
I have a textbox which the user will enter a number into. I then have a label control which will perform a maths operation and write out the resulting answer; atleast this is whant I want anyway however this is not happening.
The code I have so far is
Protected Sub btnWork_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnWork.Click
Dim Work As Integer
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I dabbled in VB several years back, but recently I have had the need to actually use it for something purposeful. I'm by no means fluent in programming. I am trying to create a countdown timer using the system clock. I have set it up so that upon pressing a button, a countdown is displayed in a label decreasing from a number that the user types into a text box.
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i am learning vb. net for my IT class. i have been set the task of making a simple web browser. i have been able to insert a web browser window into the form and set the url in the properties tab in the editor. i have inserted a buton and a textbox and have written code so that when clicked the text in the textbox will be set as the url property. below is the code i have used
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I am having an error from the date I retrieved based on my query.txtArrivalTime.Text = rdDate.Item("arrivaltime")Using the code, I got this error...Conversion from type 'TimeSpan' to type 'String' is not valid.But when I execure my query on my DB GUI, I got this value 17:25:43.Is there a way I can handle this?
View 2 RepliesPublic Class frmWaiter
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
'Bill Amount Input Box
Dim txtBillAmount As String
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