20,284 Topics
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| | I want help to solve this issue. I have a datatable which is created by doing an 'Inner Join' of three tables. This datatable is bound to a datagridview for display of the records. I want to use the bindingsource methods for doing the delete / update on the underlying … |
 | I have a program with DataGridView which is bound to MS Access table. When I addept to update I get "Syntax error in INSERT INTO", but no explanation about the syntax error. Column names in the table have a space in them, such as "Last Name". Could that be the … |
| | Hey, I have a little problem that I can't resolve, maybe you can: I want to write in a textbox a number, let's say 3. Then I'll click on a button and in the combobox it'll add the items 1, 2 and 3. Thank you for helping! |
| | Hello guys, Im looking to learn VB from the ground up and wanted to know if there are any in depth informative tutorials online which are free but extensive in content. Many Thanks for any suggestions Shady |
| | i have an excel file which contains the following: (only part of the file) 1 SEG-AMK EG1832 Mechanics and Materials 286 1.5 EG1832 2 SEG-AMK EG1833 Electrical Principles 375 1.5 EG1833 EG1952 EG1903 3 SEG-AMK EG1835.1 Engineering Mathematics (1) 456 1.5 EG1835 EG1001 4 SEG-AMK EG1835.2 Engineering Mathematics (2) 363 … |
| | I want to compare a date in a database to today's date and it they are equal. Display the contents of the related date in the database in datagridview on a new form. This is my code Private Sub TimerAppoint_Tick(sender As Object, e As EventArgs) Handles TimerAppoint.Tick Dim TheDate As …  |
| | how to print the result of the listview search?  |
| | i want save image in directory path and also save path in database...sqlserver 2005 and retrive in in same folde and path |
| | i have a database table containing: SEG,AMK,101427Y,EG3902,EG3902-G1 SEG,AMK,101427Y,EGS650,EGS650-G1 SEG,AMK,103852S,EG3901,EG3901-G1 SEG,AMK,103852S,EG3904,EG3904-G1 SEG,AMK,103852S,EGS104,EGS104-G1 SEG,AMK,103852S,EGS650,EGS650-G1 SEG,AMK,106581C,EG3901,EG3901-G1 SEG,AMK,106581C,EG3902,EG3902-G1 SEG,AMK,111713M,EG3901,EG3901-G1 SEG,AMK,111713M,EG3902,EG3902-G1 another table containing: 1 SEG-AMK EG1832 Mechanics and Materials 286 1.5 EG1832 2 SEG-AMK EG1833 Electrical Principles 375 1.5 EG1833 EG1952 EG1903 3 SEG-AMK EG1835.1 Engineering Mathematics (1) 456 1.5 EG1835 EG1001 4 SEG-AMK … |
| | I have a bit of vb.net code that will search for a string, then get a certain amount of characters after it and display in within a text box. My issue is that is some cases there are more than one string of text I need to display, so rather … |
 | DynDNS has recently changed their policy so that if you want to maintain your "free" account you have to login to their site at least once every 30 days. I'm trying to write a script that I can kick off on a scheduled task. I'm not very adept at coding. … |
| | Hi to all I want use one reportviewer for several reports each with a parameter. This person has done it here http://www.sourcecodester.com/visual-basic-net/load-rdlc-report-using-report-viewer-programmatically.html without parameters. How can it be used with parameter for each report. when I change line 15 to da.Fill(ds.Employees,txtEmployeeID.text) (where txtEmployeeID holds employee ID as a SQL parameter), … |
| | Hi, How do you get the WebBrowser's Url in a Combobox? I've tried the Url member but it says "Value of type 'System.Windows.Forms.WebBrowser' cannot be converted to 'String'." I also tried the LocationURL member also but it was in VB6 and not VB.NET. Please help me. Thanks in advance |
| | Greetings fellow developers, can you guys give me a hint on how to check if the datacolumn or datarow on the database has a value or null value what i want to happen is if the column1 has a value then the button is disabled. Dim Str As String Str …  |
| | Hi, I am new to this place and found this by searching for a log in system tutorial for a Visual Basic 2008 Express Edition. So far I have been able to put a code to have 3 users on: [code=Visual Basic]Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, …  |
| | im currently working on listview and i think i need help :) all i need to do is when i click the button it select the items and so on up to the last item and set back to beginning bu im my code its just up to the first … |
 | My code is working but my only problem is that the entire program freezes while it is looping and the freeze only stops when the loop is done, is there any way to get rid of this freezing? i want to see it display from 1 to 21 but instead … |
| | I'm trying to add [this](http://www.codeproject.com/Articles/15559/A-Windows-Forms-based-text-editor-with-HTML-output?msg=4610424#xx4610424xx) to my existing project. I'm right clicking the toolbox-> chose items-> select the exe. It automatically adds a reference to my existing project. But after I drop the control onto my form it gives me: "LiveSwitch.TextControl.Editor is not defined" 2 times and 1 "LiveSwitch is … |
| | Dear All, I am trying to display the buttons dynamically and buttons of text trough character bit map. It is possible or not. Please reply me urgently. |
| | Currently I am designing a inventory system, however jumping straight into vb.net was easier said than done. At the moment, all the information stored goes to two places, one being a master file that has all the information ever inputted, and the other being an individual file that is created … |
 | Recently I've used zedgraph barchart to create a chart with 12 bars. I did want to put each bar on an x-axis scale and change the label name of that scale, but I did not success. Could you please show me the way the put my bars inside the scales? |
| | i need some help... please help me convert this code into vb .net im using a device w/c is digital persona fingerprint scanner, the code works but it does not show any scanned image of the fingers in vb .net Private Sub cmdCancel_Click() op.Cancel lblMessages.Caption = "Operation canceled" Set op … |
| | Friends, I Have Developed an Application, Now I Want That My Application Should Start Automattically When System Starts, How Can I Do This, Please Suggest Me |
 | Private networkAvailableEventHandler As NetworkAvailableEventHandler = AddressOf NetworkConnectionChanged Private Sub NetworkConnectionChanged(sender As Object, e As NetworkAvailableEventArgs) If Not disposed Then OnPropertyChanged("IsNetworkAvailable") End If End Sub Dim disposed As Boolean = False Public Overloads Sub Dispose() Implements IDisposable.Dispose Dispose(True) MyBase.Dispose() GC.SuppressFinalize(Me) End Sub Protected Overridable Overloads Sub Dispose(disposing As Boolean) If disposed … |
| | I have a form with A GroupBox on it. Within the GroupBox is a TextBox and a ComboBox. I am trying to disable one or the other when either text is entered into the textbox OR when an item has been selected in the combobox. I can get the combobox … |
 | Hello group; I have been searching for a way to run an external macro on an excel sheet automatically. I have found some code including this local suggestion http://www.daniweb.com/software-development/vbnet/threads/332821/run-excel-macros-with-vb.net# which looks good but I am baffled by the final instruction **"just remember that you have to have an excel sheet … |
| | So I must build an app that has to do with mail address management and more. Let's say the user has an excel file with 2 millions of rows (email addresses). I made it the oledb way and the first mistake I made was putting ~500k rows in a datagridview, … |
| | I am able to find and replace in word, however all I want to know is if the word was found, I have tried the following code: This works oDoc.Content.Find.Execute(FindText:=x, ReplaceWith:=y, Replace:=Word.WdReplace.wdReplaceAll) This never give the true statement oDoc.Content.Find.Text = x If oDoc.Content.Find.Found = True Then But why not? |
| | hi. i made a simple chat app on vb 2005 express edition. Its juts a simple client server chat. could anyone help me turn it into a multi client chat. where more than 1 user could connect to the server. it must include a publich chat room where everyone connected … |
| | Hi I have a datagrid with 2 columns (Scores(Int) index 0 and Comment(varchar) index 1) Comment columnvalue depends on score columnvalue. This code works well in my cellvaluechanged event If e.ColumnIndex = 0 Then If Not IsDBNull(Me.dgvStudDisc.Rows(e.RowIndex).Cells(e.ColumnIndex).Value) Then If Me.dgvStudDisc.Rows(e.RowIndex).Cells(e.ColumnIndex).Value >= 0 And Me.dgvStudDisc.Rows(e.RowIndex).Cells(e.ColumnIndex).Value <= 5 Then Me.dgvStudDisc.Rows(e.RowIndex).Cells(1).Value = "Very … |
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