Change A Datagridview Error Message?
Mar 22, 2011
I may have missed the solution to this problem, but in my database I have 2 columns that cannot be null and a system.NoNullAllowedException message is displayed if they are mt. I want to change this message to simply indicate that the cell cannot be null, instead of the huge message with all of the information which is of no use to the user. I cannot seem to find where to change this message. When the exception is thrown I would like to see the message say something like "Empty cell not allowed".
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Jun 4, 2011
if I forget to enter a value in a cell in my gridview a loooong error who says thar that the indata format is wrong. anyone who know where in visual studio I can make this error a bit more understandable for others?
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Apr 22, 2009
I have couple of questions with datagridview 1.How to handle the Enter-Key when the user edited the columns value.?I mean, without changing the columns values we can suppress the enter-key by following. No problem. It's working Fine.
Private Sub DataGridView1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles DataGridView1.KeyDown
If e.KeyCode = Keys.Enter Then
Dim numCols As Integer = DataGridView1.ColumnCount
Dim numRows As Integer = DataGridView1.RowCount
[code]....
But after if I select any one column & changed the values then if I press <Enter> it's moving to next row. But I want to move it to next column..
2. With Datagridview - I have a column for date. and it's defaut format is mm/dd/yyyy. But Iam looking to read the date by "dd/mm/yyyy" format. Also if the user feed wrong date format then it has to display my Error message. "INVALID DATE"
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Sep 1, 2010
I have DataGridView display Customers Details. The DataSource are from DataSet. After the user have created a new customer record and updated the SQL SERVER Table, Instread of refreshing the whole DataGridView I am trying to add new rows with data from the TEXTBOX into the DataGridView and it generated this error message: Rows cannot be programmatically added to DataGridView's row collection when the control is data-bound This is the coding which the error was generated from:
Private Sub FRefreshDataGridViewRow()
'use strmode to determine New or Edit existing record
Dim strCell1 As String = CType(Me.txtCustId.Text, String)
Dim strCell2 As String = CType(Me.txtCompName.Text, String)
[code].....
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Feb 22, 2009
how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click
Dim intFat As Integer
intFat = Integer.Parse(txtFat.Text)
lblResultDisplay.Text = txtFat.Text * 9
End Sub
My text box is call txtFat
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Aug 11, 2011
I am getting the error Parser Error Message: The server tag is not well formed. on the code line below:
<asp:HyperLink ID="imgFileType" ImageUrl="images/Icon_Pdf.gif" NavigateUrl='<%#"javascript:ViewFile('erg_", Eval("DocumentName") %>' runat="server"></asp:HyperLink>
I need the url link to be parsed as:
javascript:ViewFile('erg_Invoice_3200_QRG_Restaurant.pdf');
What am I missing in the syntax?
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Oct 20, 2011
I'm upgrading my VB6 project to VB.NET and I found one of the problem below relating to dimensional array.Here's my VB6 coding :
Private Function ConvertMatrixToBase0(ByVal MyMat() As Double) As Double()
Dim i, j As Long
Dim ConvMat() As Double[code.]...
When i port it over to VB.NET, i encountered error message 'ReDim' cannot change the number of dimensions of an array. for the line highlighted in red. And I suspect that VB.NET need to always define the exact dimension of the array during the declaration. But for the function above, for the array of 'MyMat()', I do not know what is the exact dimension every time it runs, and that is why i need to check the dimension of the array.My question is do we have any solution in dealing unknown dimension array in VB.NET? As in VB6, we can just define Array() instead of Array (,) in VB.NET.
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Jan 5, 2010
I am facing another error "An error occurred trying to load the page. Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND) )" performing the following scenario:- Opened a sample VS 2010 WPF project that I receiveved from a co-worker (Project compiles, and run on his machine)I tried to open project properties (Project --> Properties)The project properties panel/window didn't open, all it had was an error symbol (red/white X) and the error message above(HRESULT: 0x80020003).I am unable to view niether the designer window nor the code window (no messages are reported) but the pane where the code/design shoud display is empty, all you can see is the background color.
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Sep 1, 2011
I know it's possible in asp.net to create a custom error page in a web app, by putting the following line in the web.config: <customErrors mode="RemoteOnly" defaultRedirect="frmErrorPage.aspx" />
I have had to do this for my web app, since it is clearly much tidier than letting the program bomb out with it's ugly default error page. My custom error page just has the customer's logo and a brief message saying "Error has occurred. Please return to homepage"The trouble now is that I have no way of knowing what caused the error, when a customer reports it.
Is there a way to make the actual error message appear on this custom error page too?
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May 25, 2009
I dragged and dropped a label control on my web form. But then whe I go to my VB .net code behind file, if I try and set a property on that label control, I am getting a "Declaration Expected" error message for the label I created.Yet if I do try and explicitly declare my label control, the compiler tells me that the label control is already declared.[code]
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Apr 8, 2010
I renamed my project by creating an new project folder, copy/pasting the old project files into it and renaming those files. This works good, but now all of the message boxes that come up still display the original project name. How can I edit the text in the message box "header" and make it say something else?
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Apr 12, 2010
People have posted code to drag a borderless form using a Windows Message, both on this forum and in the CodeBank. This method has a drawback: you can't drag the form higher than the top of the screen -- or rather you can, but it immediately flips back again when you release the mouse button. I would like to change that behaviour.
After some time poring over the stream of windows messages, I found that the flip-back occurs whenever there is a WM_CAPTURECHANGED message immediately followed by a WM_WINDOWPOSCHANGING. The latter message contains a pointer to a WINDOWPOS Structure in its LParam field. Apparently it is possible to annul the impending change of position by setting the NOMOVE flag of that WINDOWPOS. [code]...
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Jun 3, 2012
1, Is it possible to change the size of the message box because currently the header text of my message box is off the screen.
MessageBox.Show( _
"Click OK to continue", "The following job has been cancelled", MessageBoxButtons.OK, _
MessageBoxIcon.Exclamation)
So in this case it only shows "The following job has bee" so is it possible to resize my message box so it shows the full length of the header text?
2, I have been using try catch structures in my coding, but in my message box I can't get to add the header text?
Catch ex1 As Exception
MessageBox.Show( _
"Error..." vbCrLf & ex1.ToString)
[Code]...
However the above just displays Error twice within the message box and no header. Also if possible how would I add a messagebox icon with the try catch structure?
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Dec 15, 2011
I have a DGV I am working on, and I have many columns.
For example I have Columns colcase(Combobox), colreportTime(Time)
the combox shows 4 cases {A,B,C,D}
what I need to do is if the user select "C"
the the colreporttime will show the time of this change unless the old value is C
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Nov 16, 2009
Im doin project in vb.net as front - end and sqlserver 2005 as back-end
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Jun 2, 2010
Is it possible to change the background color of Message box in windows application.
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May 5, 2011
The program has errorhandle and write log function, however, it could not catch the error message in the program.
The following error message in Event Viewer. Error Module: oleaut32.dll ,version 5.1.2600.5512, error code: 0x000048f9
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Nov 29, 2009
When I run the code, type a value in quantity and hit the calculate button I get an error message stating, "Quantity must be a numeric value" and I don't see in the code what I have missed. I thought I set quantity as a numeric value by making it an integer and parsing it.
Private Sub calculateButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles calculateButton.Click
' Calculate subtotal
Dim subtotalDecimal, amountDueDecimal, shippingDecimal As Decimal
[code].....
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Jan 29, 2010
I am using VS2008 and I have a form which has a datagridview. This is for an invoice where I already have the user select the customer from a details view and want to have the items in the datagridview change based on what the customer selected. Then when the item is selected I want to have the price change accordingly.
So far I have the customer selction as well as the item combobox(not limited to cust items yet) appear, but I cannot figure out how to get the join of the 2 items (cust+item as the price varies from cust to cust) to change the price. Question is, is it possible to do this in the same datagridview, or should i try to just break this down some other way?
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Feb 8, 2012
I am uploading an excel data to display in a datagridview and when i click on an update button it updates the database.but I want a code that will look up a column and get a value then display in a message box like "Data uploaded successfully for @ChurchID"where @Churchid is a column in the excel sheet but the id is the same but unique for every excel sheet upload If the upload is not successfull then it should give a failed message for that @churchID
Code
Dim i As Integer
For i = 0 To (Me.DataGridView1.RowCount - 1) - 1
Dim Connection As New OleDb.OleDbConnection("Provider=Microsoft.ace.oledb.12.0;data source=C:Documents and Settingsmichael.marteyMy DocumentsVisual Studio 2005ProjectsmyRegistermyRegisterinDebugChurchesRegister.mdb")
[code]....
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May 20, 2010
I have the following code and I want to say that if the datagridview - dgvImportData is empty then say this message otherwise say the other message.
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Nov 23, 2010
I devoloped a program that detects type of iphone If the iphone is detected it show me an error Index array out of bounds How can i make it show a message box showing Iphone not detected
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Mar 3, 2010
i am beginner of OOP program. i am using vb.net my problem is the vb.net not telling me if i have Error (Cannot implicitly convert ) at design time, but C# telling me if i have that error at design time.
[Code]...
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May 9, 2012
In IIS 5.1, i have set the website security to Basic Authentications and i have set the page for custom error in IIS which is directing to c:est.asp file. When user try to access the website, the user name and password screen comes up and after entering the wrong password 3 times, system shows the custom error page which is fine but why does system prompt for the user name and password again (for three times)?
I don't want user login screen on custom error page. I have tried to put the custom error page on the default website and set the security to anonymous but it still shows login screen on custom error page.
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May 11, 2010
Chr(34) : Chr is not declared error message
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Feb 22, 2011
I am working on a small program to find all images on drive and display them using Cygwin commands. I found a code snippet that seems to work well but get a error when I run it. Here is code:
Try
Dim r As IO.StreamReader
r = New IO.StreamReader(workingdir + "\images.txt")
[code].....
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Jan 30, 2011
i am receiving this error message when my application is being viewed on the remote machine(internet)
Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.Source Error:
Line 7: Dim oBF As New BinaryFormatter()
Line 8: Dim oFS As FileStream
Line 9: Dim strPath As String = Path.GetTempPath & "schedule.Bin"
Line 10:
Line 11: Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Source File: D:Hosting4423045htmlplease-godappointmentscheduler.aspx.vb Line: 9
[Code]...
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Feb 15, 2010
I am using
VB
webbrowser.navigate(link)
in a timer and that sometime ended up with error and sometime the browser shows a blank screen and keep on refreshing and other times it shows an error and the application stop responding.
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Mar 31, 2010
I have this application that updates information to a database. I had it working but whether I have deleted or changed something accidentally I don't know. This is the error that appears:
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.InvalidCastException: Conversion from string "SBS-resources" to type 'Integer' is not valid. ---> System.FormatException: Input string was not in a correct format.
[code]....
When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.
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Mar 10, 2009
I tried all the properties of the combobox to try if i am able to ONLY allow user to choose one of the collection in the combobox .Maybe by onli allowing to choose but not able user to type into combobox.Or even showing error msg to tell user to only choose the collections..
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