Unable To Display Warning
Jan 29, 2011
I wrote a small VB6 program to monitor the status of a Shared Network Drive. In this case it's an external hard drive. The drive is used for backup. The program is invoked automatically when the computer is booted and runs minimized.
If the backup drive is not turned on or otherwise not functional then the program changes from minimized to a normal window and displays various statistics and a warning that the backup drive isn't working.
I want to make the warning much more prominent, like minimizing the program that happens to be running or displaying the warning window in front of the progrmam that happens to be running. I want something really noticaeble. The computers don't have speakers so I can't play an warning.wav .
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Feb 28, 2009
i'm unable to debug my project that i made. i save it and everything, but it just won't playit says Warning 1 Could not find type 'WindowsApplication1.My.Resources.Resources, Time table'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built. C:SchoolIPTTime table, using 2 loopsTime table, using 2 loopsForm1.Designer.vb 123 0 now when i open it up and try to debug it , it comes up with an error, i even try referencing it but it does nothing ,
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Jul 23, 2010
So I have this error.
[Code]...
So I'm guessing it has something to do with the fact that I don't have office loaded on my computer. Now I have another laptop, with office that I loaded this project on, and it works fine. So do I have to load office on this computer, or can I just reference something?
[Code]...
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Mar 12, 2011
I have a lot of files in my computer.Here is an example: C:Data3023e4rMarch_20113023e4r_03112011_062334.docC:Data3023e4rMarch_20113023e4r_03142011_092301.docUnder the folder March_2011 has a lot of doc files. The file name string 3023e4r is the serial number,03112011 - the date created,062334- time created.I'm planning to have a text box,where i could enter the serial number. then it will display the files under March_2011.I want the filename string to be displayed in datagridview column with their respective heading(SErial number,date, & time)
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Feb 23, 2011
I can't manage to display unicode characters in VB.NET.I'm doing this in C#:
string myString = "u03A3"; //upper case sigma (sum)
But it doesn't work in VB and I can't find a way to make it work.
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Oct 23, 2011
why i am unable to display datas from database.
If mConnection Is Nothing Then mConnection = New Odbc.OdbcConnection
' check if the connection is already open
If mConnection.State = ConnectionState.Open Then mConnection.Close()
[Code].....
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Jan 7, 2012
I wrote the following program in vb.net. I am reading 2000 data points XY points from csv file into oledb connection and displaying it into the MS cHART but it is displaying only first 500 points...
Dim cn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:;Extended Properties=""Text;HDR=No;FMT=Delimited""")
Dim da As New OleDbDataAdapter()
Dim ds As New DataSet()
[code]....
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Nov 29, 2009
I'm unable to get the color to display in the colorLabel. I think the problem is in my selector expression. I tried "B", "##[B]##", "##B##"
Option Explicit On
Option Strict On
Option Infer Off
[Code].....
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Jan 20, 2011
I am using VB.Net 2010, and when I run the following code, I get System.Data.DataViewManagerListItemTypeDescriptor displaying in the dropdownlist box
cmbProdType.DataSource = ds
cmbProdType.DisplayMember = "ProductType"
cmbProdType.ValueMember = "ProductCode"
When I hover over the datasource, I can see the correct records. But its not displaying in the dropdownlist control.
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Aug 24, 2010
While displaying the .RTF file in rich text box control. It displays all the rtf formatting strings. how to display rich text in rich text box control.
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Dec 17, 2010
So I have a class that I use to filter the results of a datagridview in vb.net. And one of the things I want this class to do, is keep the column order, width, and visibility.
So what I do, is when my search class is instantiated, i create a copy of the columns in a hashtable, for later referencing.
Private dgv As DataGridView
Private dataSet As DataSet
Private bindingSource As New BindingSource
[Code].....
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Jul 2, 2010
Using data binding and ado i am controlling a listbox selection (draws from an access database) based upon a combobox selection. Problem is i want to display more than just one column.The code i am currently using specifies the displaymember and value member on form load. However, i cant seem to be able to specify multiple display members.
Heres the code i am using on load.
Bindingsource1.datasource = a_dtBuilding
Listbox1.datasource=Bindingsource1
Listbox1.displaymember = "Building"
Im sure this is easily solved although i have read i should use a listview instead of a listbox for this.
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Dec 8, 2009
The main problem is I couldn't display the result when I retrieve data from database.
1. On Picture 1 above, for the Dg_Details, I set the Columns in two type, textbox and checkbox. But, for the datagridview1, I didn't set anything.So, when I bind data from database to Dg_Details and datagridview1, the datagridview1 display the data from database, but the Dg_Details doesn't display the data. Below is the code I written in my form :
Try
objCommand = Me.MyConnection_F.open.CreateCommand
objCommand.CommandText = "select Reg_Num, Reg, Golf, Course_1, Course_2, Course_3, Course_4, Course_5 from Invoice_Reg where Receipt_No = '00001'"[code].....
I think that's happen because the Dg_Details already set and it blocked the result data from database.
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Sep 26, 2011
I am facing a problem displaying the records of my table on the visual basic form I have created.
This is my code :
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
myconnection = New SqlConnection("server=HOME-PCSQLEXPRESS;uid=sa;pwd=123;database=college")
[Code]....
Note: my database name is "college" , table name is "demo3" . Table contains 2 columns namely name and roll no. How to display the data in those columns on the visual basic form that I have created ?
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Oct 22, 2009
I've got a project where I want to be able to display a world map and draw lines between cities.I've looked at using a web browser with google maps but don't want it to have to be used while "online"
I've looked and longitude and latitude and converting these to UTM co-ordinates but i'm lost for how to place these on world map programaticly.I have a full list of all cities used in my program and have a list of their latitude and longitude co-ordinates because i need to work out thier distance apart which I have already done the code for.
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Feb 7, 2012
I have a form1 with a splitcontainer. I have put a button on the left panel, whenever user click the button, form2 will be displayed in the right panel.The question now is, i am not allowed to highlight the textbox in form2 with mouse. But i still can use the keyboard to highlight.
1) Replace textbox with richtextbox
2) set formborderstyle to Windows.Forms.FormBorderStyle.None.
The code i am using to open the form in panel:
B_frmMaintain.TopLevel = False
Me.scMain.Panel2.Controls.Add(B_frmMaintain)
B_frmMaintain.Show()
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Feb 12, 2011
I am unable to change my button text to "&" .
Button1.text = "&"
When I run the program button has no text.
What could be the problem ?
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Dec 24, 2009
Now I want to display picture in picturebox1.To do this I use this codes, but it does not display picture
on this line: Dim arrPicture() As Byte = CType(dt2.Rows(0)("img_path"), Byte())
it shows this message,
Unable to cast object of type 'System.DBNull' to type 'System.Byte[]'.[code]......
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May 19, 2005
Is there any way to disable a specific warning. For example, in one of my classes are re-implement System.ICloneable.Clone. After doing so I now get a warning that states, "'System.ICloneable.Clone' from 'implements System.ICloneable' is already implemented by the base class 'XXX'. Re-implementation of function assumed." Is there any way to remove this warning from the Error List
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Dec 8, 2010
I'm compiling a VB.Net 2.0 app (created in VS2008) using msbuild, and now I've added a generic return type, it's giving me the following:
Warning: Type library exporter
encountered a generic type instance in
a signature. Generic code may not be
exported to COM.
Having just spent ages removing all of the previous warnings, I don't really want to add a new one. Any idea how to get rid of it (aside from not using generics)?I don't know what details I'd put in the attribute, or what number to put in the project-level ignore list.
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Oct 6, 2010
I have an app with a timer control, and the interval is set to 60000ms (1 min). so every min i have some event happen. thats pretty simple. however, i want to have a 15 second warning that the event is going to happen. so basically 45 seconds after my timer starts, i want a message such as "15 seconds left until event x happens".
would i have to use 2 timers? i guess im lost on the logic. i know how to use the timer control, but i have been googling all night trying to figure this one out. i have tried using 1 timer set to 45 seconds (for the warning) and another timer at 60 seconds(for the event) but they go out of synch after 1 iteration and will not consistently stay 15 seconds ahead of the other. i dont want to post any code i have, because it is all trash and i want to start over from scratch.
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Oct 26, 2011
I wanted to know how to encrypt data.And I've found a solution at this web site.This script works if I use it as a function.Nonetheless, Visual Studio throws a warning that says the following.[code]Visual Studio underlines the second line after the equal symbol above.I have no idea what that means.Does anybody have any idea how I can resolve this warning?
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May 25, 2009
I have set up my form using with the languages and I have store the texts in the resource. I have debug the project and everything seen to be fine. I found that there is a folder in the project bin folder. The folder was called zh-chs. I have changed the name from roject1.resources.dll to testdll.dll and moved to the bin folder. I have added reference in my project and I have deleted the zh-chs folder. Suddenly, I have found a warning sage.
Code:Could not resolve this reference. Could not locate the assembly "TESTDLL, Version=1.0.0.0, Culture=zh-CHS, processorArchitecture=MSIL". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get
[code]......
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Jun 8, 2011
i wanna ask how to make warning messages when a user clicks the search button and found no record with what he input. [code]
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Feb 25, 2010
warnings got me thinking about old issues that always goofed me up when I was writing more VB.NET code.One of them was the fact that the compiler didn't warn if you declared a Function but never did an explicit Return statement or assign to the Function name. Running Visual Studio 2008, I just made a small experimental project, and it seems as though the behavior has never been fixed.I created a Visual Basic Console application, with the following code:
Module MainModule
Sub Main()
Dim test As Boolean = TestWarning()[code].....
I also went into the Project Settings and turned On Option Strict and Option Explicit.I also set the Warning Configurations so that "Function/Operator with no return value" was set to Error.I compiled the project and got no warning, and no error on the TestWarning() Function. This seems like a great place to put a warning, because it will default to False, and you may have simply forgotten to do a return. C# will error without a return statement. I thought that VB.NET did the same thing with the "Function/Operator with no return value" configuration. Is this a bug, or is there something I'm missing?
Edit: Further Experimentation
Function TestWarning() As Boolean
If DateTime.Now.DayOfWeek = DayOfWeek.Monday Then
Return False[code].....
If, and nothing in the Else, there is also no Warning/Error. It will simply take the default, even though you likely intended (via programming style) to have an explicit return. In this case, I explicitly returned False (which is the default for Boolean), so it's likely a hidden bug that I should have returned True in the Else.
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Apr 4, 2012
how do i programmatically change datatable and tableadaper components name property in my dataset.xsd ?
this my code:
Partial Class DataSetBimeh
Partial Class bimeh1DataTable
Private Sub bimeh1DataTable_Initialized(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Initialized
[Code].....
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Apr 19, 2008
This program is for advertising ads and prices are determined by which radiobutton is selected.This program uses objects created from a class . I am getting a waring message that Variable 'ad' is used before it has been assigned a value. A null reference exception could result at runtime. the warning is at ad.size = 225.So how do I get the variable filled before used if it depends on which radiobutton is checked? [code]
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May 24, 2012
I'm trying to decrypt a file with the following
vb.net
Function DecryptAES(ByVal CipherText As String, ByVal password As String, ByVal salt As String) As String Dim HashAlgorithm As String = h_alg Dim
[code].....
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Jun 11, 2009
When i ran some applications, more ofter than not there will be some messages showing in the immediate window, such as:
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
A first chance exception of type 'System.InvalidCastException' occurred in
[code].....
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Feb 11, 2010
Not a query, just mentioning a problem that might affect others, assuming it is not just some wierd bug on my system, that is. Perhaps someone can check this out.Under screen resolution, Windows 7 has a "make text larger option". On my machine at least, this has the effect of increasing the sizes/positions of any controls set in design mode. Not just in executable, it actually changes the values in design mode.
If you are relying on rescaling sizes/position set in design mode according to screen resolution only you may get incorrect positions when this mode is in use.This affects both VB.net and VB6.
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