20,278 Topics
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| | Hi, I'm developing a data logging application using VB for the actual logging to a MySQL database. I'm reading a value from a device and then running an insert query every minute. This is great but if the value doesnt change all day then my records are going to all … |
| | I can use following codes to change resolution but problem is that when I run my program it changes resolution(1280*1024) & show form which doesnt fit the screen though its width is 1280 & height is 1024. But when I close that program & run it again then it works …  |
| | Hi Experts I m using vb .net2008. I want to skip read-only columns, for this I use these codes But their some error, how is it possible???? [CODE] Private Sub DataGridView1_CellEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEnter Dim y As Integer = DataGridView1.CurrentCellAddress.Y Dim x As Integer … |
| | am working in vb.net platform.I want to convert input value integer to word during at runtime |
| | Was researching this but could only find how to use a datagrid which is displaying from a database? I currently have a for loop which goes through a 2d array and prints out all the things I want into a textbox but, what I want is to be able to … |
| | How to read per row in a table in mySQL as the database? i want each username when they login, they will go to their respective forms. Like for example, there are 3 users and each user have their different forms. can someone help me with this... thank you! This … |
| | Hi people, This is my first post here. It really is a nice community, especially for people who are not "qualified" programmers with the "attitude". I am a programmer by hobby and did not like being in any community previously. There are some really nasty folk. Great job guys! This … |
| | I am trying to set the checkbox to be grey. If the user clicks one box and its arguments over ride the other boxes then those will be greyed, but I have searched everywhere for this and cant find it, anyone have a solution? All i have seen was indeterminate … |
| | How do I make my app have a description in the Processes tab of the Task Manager? Changing the assembly description doesn't do it apparently. Right now the description is just it's name. |
| | Hello, In .NET im using the backend as SQL Server. but when i write codings for all insert,update and delete in .NET and run the form, the error it shows like "Oledb exception was unhandled by the user" and error in SQL query. the codings are....follows.. [code] imports system imports … |
| | Ok, I posted earlier this week about reading in data from a csv/txt file into an array. My data is huge, 100 columns and 12000+ rows. I would like to name variables by column and then plot these variables. After I read the data line by line and delimit the … |
| | Hi, I am a VB.net greenhorn so my problem might seem trivial but for me it is getting to be a Herculean and confusing task. :sad: My problem is that I am making a project where the user has to give a quiz where he/she has the choice of number … |
| | I have a class assignment where i have to calculate the total cost of a parking garage from hours but i have to do it with a method function. So this might be a stupid question but can you read the user input values from a textbox in the function … |
| | how can i make the background image property not to be tile ( i want it to be as one picture in the middle) i am using vb.net2003 ;) thx |
| | Dear Friendz Ihave face problem with null value i remove the chk from null value n sql server and when i direct save anything in table it dosen't accept null value but when i save these in my form it accept null value . i don't know why form do … |
| | I need a web based project idea for my project work submission.  |
| | Hi all, I didn't think this would be a problem, but it appears that others also search for this solution. [B]There is an annoying DING! when hitting the Enter key in a ComboBox in VB.Net[/B] so I sought solutions. Here is the solution I am working with. I created a … |
| | I am trying to set strCustomerNumber to CustomerNumber from tblcustomers The tricky part is It has to be a specific Customer, so I have to retrieve the customerName from ddlCustomers before I can get the correct number here is my code: [CODE] Dim strCustomerNumber as new string("") strCustomerNumber = ("SELECT … |
| | Hi, I am using vb.net with visual studio 2008. I have the need to have a user select a directory on a network drive to bring up a folder with a very extensive list of files. The file names within this directory are what I'm concerned with and I will … |
| | How can I show report between two dates? I have shown report by ID number through parameter. To do it I had one text box & one report viewer & button. But now I have two text boxes to write two different date one button & one report viewer. What … |
| | I have a dropdownlistbox in a webform. When the page loads, it displays the initial text, that is ok. When selection is made, it works ok. But when i tried using the text property ie msgbox(cbomodel.text), what shows in the previous text. The newly selected item is never recognized. Is … |
| | Hello All, I have stored a Image in my sql server database and when i am tring to retrive the data the following error is coming.. (Conversion from string " 8901.jpg " to type 'Boolean' is not valid.) In the database and also in the \\Debug\member file that .jpeg files …  |
| | Hello guys! I have so many form to manage. I want to count the instances of a particular form. For example, if I show my form1 two times then there must be a counter for my form1 and if I also shown my form2 another counter for form2. I want … |
| | I was wondering if anybody knows how to uncheck a checkbox in a web browser using VB.NET? I Using the code .SetAttribute("checked", "true") will check a checkbox but using "false" will not uncheck it. I really need to figure this out, does anybody have any ideas? |
| | Hi all, New user here using VB .Net 2008 I seem to be having trouble getting group boxes to appear when I click a radio button. For example: [CODE] If radiobutton1.Checked Then Groupbox1.Visible = True Groupbox2.Visible = False Groupbox3.Visible = False Groupbox4.Visible = False End If[/CODE] This indeed brings up … |
| | I need to move a chart from one sheet to another in an Excel workbook, and I am having issues with different versions of Windows and Excel. Here is the code I am currently using: (excelApp is declared correctly) [code]excelApp.Workbooks("Book 1").Sheets("Sheet 1").ChartObjects(1).Chart.Location(2, "Chart 2")[/code] This works perfectly and consistently with … |
| | I'm writting program in VB 2010, but I have a problem. I want to draw a temporary line on PictureBox control MouseMove event. That works fine but deleting of that line doesn't work. I tried to draw the white line on the same coordinates (PictureBox's background is white), but won't … |
| | hey, I have tried many methods to save my datagridview contents to a file but with no luck does anybody have a good method for xml to datagridview, datagridview to Xml, or any other methods to read/write a datagridview |
| | Hi, I am having throuble resetting my textboxes to nothing if the selection in the listview is nothing. I.e. when i select a record my textboxes are updated with teh selected data, but if nothing is selected after something is selected I would like to clear the textboxes to blank … |
| | I would like to design a programm in visual basic.net meet the following requirements: Fibonacci numbers Input limit is 15 Numbers are 0 1 1 2 3 5 8 13 The program must allow input limit Display all generated Fibonacci numbers The sum of all the Fibonnacci numbers Anyone who … |
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