I'd just like to know how to clear a listbox of its entire contents. I know in VB6 it was something along the line of 'lstBox.Clear', but that doesn't seem to be the case in this new version of VB.
I have a listbox where each line contains a short 3-4 character model number followed by a tab and then the product name the model number corresponds to. I also have a textbox which I am using to search the listbox.
The code I am using so far works somewhat, just not exactly how I would like. If I enter search text it will highlight the results in the listbox but only for the first characters, is there anyway to search the text of an entire line (index) of a listbox?
Right now I am using the following:
Private Sub txtSearch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtSearch.TextChanged ListBox.SelectedIndex = ListBox.FindString(txtSearch.Text) End Sub
i'm trying to make a program that searches for a specific file in a specific file, so when the program loads it "writes" in checked list box the names of the drives installed to the computer, but what i want to do is: when the user checks the box, i want it to search for the file in that drive, but i don't know how to do it...
I'm using:
Imports System.IO Imports System.Collections.ObjectModel Public Class Form1
[Code].....
how to make it search in the other drives using the checked listbox?
I wonder if it is possible to find a specific row and specific columns in data base file (Access) . You see , I am using a DataGridView control to show only SOME of the columns (fields) of a table from an Access file . For example , lets say that in the DataGridView control I only show the following fields :Field1 , Field2 and Field3 .Now , when the user selects an entry in the DataGridView control , I want to insert the text from Field4 into a text box on the form .
The problem , however , is that I don't know how to get the specific row in the data base file and also I don't know how to get the text in column (field) Field4 of that row .One thing that might be important is that the index of the row in the data base file is not necessarily the same with the index of the current row in the DataGridView control . This is because in the DataGridView control the rows are order by the contents in the ID Field .ol .
get the whole and same content of any file i uploaded, for my editing purposes in my editor w/c retrieves file from the database. i.e of files are ".doc and .txt"and by the way what i meant by same content is the whole same appearance of my .doc or .txt file i.e "if the text is bold, forecolor is red and etc.."
i successfully established a file upload and a function to store it in a database... but what i'm missing is the whole and same content of the file. Another thing is i don't want the file to be saved in a local folder or somewhere..i just want it to be save directly to my database Below is my sample code of trying to retrieve the content.. but it is an error when you run..
Private Sub cmdSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) If filMyFile.PostedFile IsNot Nothing Then Dim fs As FileStream
nLog for .NET has the capability to send log entries as email. But if we want to send the entire current log file, how can it be done, short of reading the log file into a string and passing that as an nLog {$message}? I don't see that nLog has a property in its mailtarget for attachments.
Using the Microsoft VB 2008 Express program, I'm making a SWd20 character sheet (D&D) to be distributed to a few friends. It's a program where the user can figure out stats, species, class, etc without having to make any calculations him/herself.. but this will all be in vain without saving it..
So I'd love to know how I could make it so the user can save and load the entire file(including buttons, labels, text boxes, menu strips, possibly multiple forms, etc) on his/her own computer.. Is this possible, and if so, how can I go about this?
I've already searched through and found lots on saving text in the files to .txt files, but that doesn't cover everything I need
Is there any other way to download a file without the entire program freezing? whenever i call my.computer.network.downloadfile the VB stops furthering to the next code allowing my game to run choppily.
Here is the thing, I have a rather bit datagridview on a form and, I would like to print that to a bitmap.
I've tried something like this:
VS2010 Public Sub SaveToImage() Dim SFD As New SaveFileDialog
[Code]....
PS: I have modded a little bit this datagridview so it looks like a gantt chart with collapsible rows, and variable & multiple timelines at the same time, so the bars might go a long way to the right of the screen, that the main reason for the save to bitmap.
I already know the basic procedure of how to read specific cells of an .xls file using VB.NET but I can't figure out how to automatically get all the data from such a file.Basically, I'm obtaining the data like this:
Dim xlApp As Excel.Application Dim wb As Workbook Dim ws As Worksheet xlApp = New Excel.Application
[code]....
In this case, I know that there will be content in the first 10 rows of the columns A, B and C but what would I have to do if I had a huge document whose size and content might even change from time to time? I know that there is also an attribute ws.rows.count but this always returns a big value like 60000 even if only a few rows are occupied.So basically, I'm looking for a simple way to loop through all the used rows of an Excel file with the possibility of accessing each cell in that row.
reading the entire contents of a text file that contains the Mall name,monthly rent per square feet, and total square feet. The file is names mall.txt and contains the information as follows:
Green Mall 6.50 583
[Code]....
The objective is to use the sub btndisplay_click event procedure and the three sub procedures.
I'm writing a small tool that requires me to take a string as input, search it in a txt file & return the whole line on which the string occurs,..for eg. let's say my text file has line # 5 as : "TEMP-This is a test line" now if i give "TEMP" or "test" as input is want my code to chk evry line in the text file & return the entire line where the string is found...
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim FileName, FindStr As String Dim objReader As New StreamReader("c:MyFile.txt")
I have an XML file that contains several sections depending on how many search results came up. Here's my question.
1. What datatype should I use to store the harvested data from each result section? Should I use an ArrayList for each section or should I do it with one large array?
1. How do I step through each section of each result without loosing my position in the data?
I coded in it along time ago, back in middle of the 90's, but not heavily, so I don't remember that much, and never really worked with databases or file import/export. I'm trying to write code in to take my table or recordset thats active and export it to a XLS file.
I am trying to find a specific file in a specific directory and then i need to get the full path of the file.Is this possible i cant find any help topics about a specific file.
Is there a better (and faster) way to find out the last modified date/time for an entire drive (or folder) without scanning each file and folder individually to find the latest modified date?
I am trying to access a specific item in a listbox. For example, I have 5 items in a list box and I need each one on a different textbox, but I cannot find the code necessary to access a individual item in a listbox. I need the third item in a textbox but I cant find the code to access that SPECIFIC item and turn it into text in the texbox.
So in the tag of <a>, for each element, there is a class called "twtr-user" So basically, is there a way to go through the webpage and add each username and address to a listbox? This is what Ive come up with so far:
For Each temp As HtmlElement In wb.document.Links Dim str As String str = temp.GetAttribute("class")
[code]....
The problem is that (1) this doesnt work at all (2) Is there a way to add the href address and also the outer text?
how I can read a specific line's value in a listbox.fx I want to read the value of line 4 in a listbox to add this value to an Integer, which I can subtract from another value?
How can you remove a specific line from a listbox? How can you like make it so instead of password it would show ******* but on a listbox because it doesnt have passwordchar option. and how can you make it save the listbox data in the my.settings
I need to make events based on which index is selected in the listbox. I was wondering if there was an inbuilt function of if I need to use If conditions.
vb.net Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
That code will run when the selected index is changed regardless of which index. But I need each index/row to run a different event. I know I can use If conditions to get what I want, but I expect it'd be a lot more efficient with an inbuilt method.