in visual basic they tell me use comma "delimited strings"(something with exactly two comm mas, such as "20,45,2003" or "hi,,there") and pull out three pieces of the string apart(using commas as delimiters that separate each of the three parts) and also tells me to display this in three different picture boxes. they tell us that the processing should happen in a click of a button...
i don't get how to use comma delimited and when i youtbed it nothing helped me....
can you please help me to this question.
All "comma delimited strings" means is that there is a single string made up of three tokens (or words). These tokens are separated by commas, in the same way that our words in English are separated by spaces.
"20,45,2003" should split into three tokens, namely 20, 45 and 2003, while
"hi,,there" would be split into hi, "", and there. The middle token is empty since there is nothing between the two commas or delimiters.
To separate the given string into separate tokens you can use the VB function split(expression, delimeter) which returns an array of tokens.
Expression would be "hi,,there", delimeter would be ",".
What is not clear to me is that the questions wants you to display the tokens (words) in the picture boxes, or each token represents a file name from which you would slap the images onto the picture boxes?
Do you have the actual string you are supposed to use?
Give it a try and post what you have and tell us where you have difficulties, if any.
Certainly! I can help you understand how to work with comma-delimited strings in Visual Basic and how to pull out three pieces of the string and display them in three different picture boxes.
To begin, let's go step by step:
Step 1: Designing the User Interface
- Open Visual Basic and create a new Windows Forms project.
- Drag and drop three Picture Box controls onto your form. You can find them in the "Toolbox" panel on the left side of the Visual Basic IDE.
- Also, add a Button control to your form. This will be used to trigger the processing.
Step 2: Writing the Code
- Double-click on the button to open the code editor.
- Inside the button's click event handler, you'll need to write the code that performs the string manipulation.
Here's a sample code snippet that demonstrates how to achieve this:
```vb
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim inputString As String = TextBox1.Text ' Assuming you have a TextBox control to input the comma-delimited string.
Dim parts() As String = inputString.Split(","c) ' Splitting the string based on the comma delimiter.
If parts.Length = 3 Then ' Checking if the string contains exactly three parts separated by commas.
PictureBox1.ImageLocation = parts(0) ' Assigning the first part to PictureBox1.
PictureBox2.ImageLocation = parts(1) ' Assigning the second part to PictureBox2.
PictureBox3.ImageLocation = parts(2) ' Assigning the third part to PictureBox3.
Else
MessageBox.Show("Invalid input. Please enter a string with three comma-separated parts.")
End If
End Sub
```
Step 3: Input and Testing
- Build and run your application.
- In the TextBox, enter a comma-delimited string with three parts. For example, "path_to_image1,image2_path,image3_path".
- Click the button.
If everything is set up correctly, the code will split the input string into three parts using the comma as a delimiter. The first part will be assigned to PictureBox1, the second part to PictureBox2, and the third part to PictureBox3.
Note: It's important to ensure that the image paths you provide in the comma-delimited string are valid paths to the images on your system.
I hope this helps! Let me know if you have any further questions.