20,285 Topics
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| | for my combobox i want to prevent user from typing **further text** if the typed text **do not match part** of combobox items i.e from starting Autocomplete mode set to SuggestAppend Autocompletesource set ot Listitems Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress Dim i As …  |
| | hello, i am trying to save data in my listview item to access database.. i am new to programming and i am currently working on a project i need to submit very soon, this is really urgent and i will be much happy if i could get assisted as soon …  |
| | Hey all, Sorry if this is really simple but I couldn't think how to phrase what I'm looking for on google. I've designed a piece of software for a friend for their business. When I learned VB we were always taught how to use it with Access Databases. I've decided … |
| | I am trying to create a form that allows a user to enter information and saves information to a file. Every item must be complete and the account balance must not be negative or error messages pop up. I have the form working, but when you click on the clear … |
| | I am trying to create a form that allows the user to search (Access database) for a record by last name or customer number. It can be a partial last name or customer number. The SQL statement and code are below. This is the same method used successfully for a … |
 | I have a label that I would like to update with the current operation being done in a button's click event. Sample code: Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click 'Process 1.... lblProcess.Text = "Now processing process1" 'Process 2.... lblProcess.Text = "Now processing process2" 'Process …  |
| | Friends, I am Developing a Windows Application For Lan, I am able to Scaning Pc's Name Which Are Connected on My Lan on Same Workgroup, But I have Problem That If Sudden I Get Lost Connection With any Client Pc, or Client Pc Become Shut Down So it Should Make … |
 | hello ! i want to disable my usb port using c# or vb.net ,is it possible to do so using .net ? if yes then any idea how i can do this ? Regards |
| | Hi guys,i was using crystal reports in my vb.net project.I read in some books and in the internet that you can create a grand total for some fields like total cost calculation.And using 'sum' you can calculate the total result.well in my case i can't find 'sum' in my crystal … |
 | i have decleared all variables as double. Sub kaat() goldkaatinratti = (Val(txtbox_tolagoldweight.Text * 96) + Val(txtbox_mashagoldweight.Text * 8) + Val(txtbox_rattigoldweight.Text)) * 8 / 96 End Sub but when i leave the textboxes empty it gives ma the error (Conversion from string "" to type 'Double' is not valid.) i CANNOT …  |
 | i just want to make a mp3 player, but i got problem at my mp3 path. this is my code: Public Class Form1 Private Sub Import_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Import.Click FBD.ShowDialog() TextBox1.Text = FBD.SelectedPath Dim folderInfo As New IO.DirectoryInfo(TextBox1.Text) Dim arrFilesInFolder() As IO.FileInfo Dim fileInFolder … |
| | Hi, i am biggener to VB.NET and ADO.NET. I have created a VB.NET form contains "Date From" and "Date To". i want to pass these two range parameters to crystal reports to manipulate the result. What is the way to do so using ADO.NET. Kindly some one explain Step by … |
 | I am currently taking a programming class. I finished my work early one day and was bored so.. I decided to make a randomizer that will only pick a number a single time. I have been trying to make it, but I run into continous errors with it. It seems … |
| | i am making a module in vb.net which will convert number of grams to number of tola masha and ratti respectively. 1 tola = 12 masha 1 masha= 8 ratti while 1 tola = 12.5 grams i can make number of tolas by number of grams \ 12.5 but can … |
 | Hi everyone! This is my very first post. I hope that some can help me. I'm totally newbie to VB but i need to make a executable file to do this: Open a given *.cpp file, and for every line inside this file check all the words containing only uppercase …  |
| | Sir, My English is not good, because of I attached Picture for you to understand my question. This is My Access Data Base There are 2 Table for Database. One for Master Details other for Repeat Details. According to my example Kevin has come 03 time repeatly. because of that … |
| | I am making a game in microoft visual basic. It is virtually finished, but I am having a problem. When you hit the start button a timer is activated making the character in the game equal mouse position. The problem is that the character is not actually going to the … |
 | there is no source code for vb program connected to vb His example, when there is a change in the dollar against the rupiah or the rising price of gold or stocks rise, so it will automatically be stored in the database comes with its sound when the changes occur. … |
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 | sir i want to get data between to tag... example:(showing in my view source) <img class='stat_icon' src='/images/green.png'> **data to be extracted**</a> or like <input type=hidden name=timestamp value='**data to be extracted**'> for the first example i wrote like: Imports System.Text.RegularExpressions Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles …  |
| | I'm trying to visualize how this will be set up... I need my VB.NET application to read year 2013 values (Year, Employee, and Annual Performance Score) from a CSV file and write them to an Access DB. This DB is linked to my VB.NET project using a dataset. No problem, … |
 | This program is to calculate commission and this is the pseudo I wrote for it. Tell me if I'm right. 1 Declare variables 2 get sales 3 calculate if sale < 1500 Then commision= sale * 0,02 else commision= sale * 0,04 4 Dispaly commision |
| | well here is the problem ! i am making a desktop application using vb.net and sql server for a local jeweler. i want to fetch "gold rate" to text box "txtbox_goldrate" from http://www.goldrates.pk . the other way is to use goldrate api from a webservice but that is not free … |
| | Please see question 3. I have attached the question paper with the second attachment as my answer. |
| | I have Visual Studio Express for Desktop 2012. I am trying to make an accouunt search feature. Similair to this: http://tinypic.com/r/4r2cer/5 Anyways, the Account Holder Name and Balance fields are read-only. How do I type in the Account Number and auto-populate those two fields based on the acct. number. If …  |
| | Hi, I'm a beginner in vb.net and I have a problem. At first I want to say sorry for my language, English is not my first language. Hope u onderstand my prob. So, I'm working disconected, I have a datagrid and now I want to search in this datagrid by … |
| | I have a combobox with 5 coloums of which coloumn 1 is DataGridViewComboBoxColumn I want to populate / add items to DataGridViewComboBoxColumn with data from access database using datatable. i am not getting how to add items to DataGridViewComboBoxColumn. How can i do it. Thanks |
| | I have created custom text box for specific purpose i.e to accept alphanumeric values only and the length of text should be 6. If the user put less than six characters the code in below block converts it to 6 characters by filling in zeros . ‘Custom Clss block Protected … |
| | When the readonly property of textbox is set to true then back colour turns to grey. i use below code to change the back colour to white Private Sub TextBox1_ReadOnlyChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.ReadOnlyChanged If TextBox1.ReadOnly = True Then TextBox1.BackColor = Color.White End If End … |
| | Hi, i need to know how can i inherits or pass login form authenticated values to MDI child forms. |
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