Error Provider On A DatagridView Cell
Feb 11, 2011
I created a DataGridView called grid_LivingBenefits.Each time a cell is going to be edited, the program will validate that cell.Now, I have two subroutines that take care of that validation.these are: ValidateDataType() and ValidatePrimaryKey()
at the DataGridView CellBeginEdit, the program checks for which cell the user is editing.at the DatagridView CellEndEdit, the program calls the subroutines for validation. If an input is invalid, I want the program to show an errorProvider on that cell.I used MessageBoxes first to check whether the validations are working and I got no problem there. but when I tried to use errorprovider instead of a messagebox, there's a blue zigzag line under the grid_LivingBenefits.CurrentCell
[Code]...
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Aug 3, 2011
i have 2 computers - a Server and a Client pc which is running on local area network with MICROSOFT SQL SERVER 2008 R2 Developer kit at the main pc and Client computer will need to connect to SQL SERVER at main pc using connection string.Let me named server computer as 'MAGNA-PC' and the client pc as 'LAC-PC' and database name is 'db_referafriend' so the code for MAGNA-PC(server) connection string is:[code] i GOOGLE and YOUTUBE for almost 2 weeks before i post . I know that i need to configure the sql configuration manager and enable tcp/ip also add a new port at firewall to allow remote connection also add the sqlserver.exe and sqlbrowser in firewall and I have also chosen "Using both TCP/IP and named pipes" under Remote Connections in the SQL Server 2005 Surface Area Configuration. and all of this doesnt work!
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Mar 22, 2011
I have a custom datagridview. I have to set focus to the cell(0,0) of that datagridview when it got focus.I have tryed the following code:
Me.CustomDataGridView1.CurrentCell = Me.CustomDataGridView1(0,0)
in the GotFocus event of that datagridview.But when i run and try to enter some text in a cell, then press the DOWN button to go to the next cell but there is a NullReferenceException.
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Dec 7, 2009
I have a DataGridView on my windows form. I am adding columns to the datagridview at runtime. In doing so, I create the columns by this code:
[Code].....
At least one of the DataGridView control's columns has no cell template.
I have looked and looked and I appear to be doing everything correct
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Jul 22, 2010
my csv contain mix datatype f.ex. in cell E8 data format is date, and other data in this E column are string.i use this connetion string in classic asp ,VB Script and back end SQl server
ChekCnn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Path1 & ";Extended Properties=""text;HDR=YES;IMEX=1;FMT=Delimited"""
Set rs1 = ChekCnn.Execute("SELECT * FROM myCSV.csv")
[code].....
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Dec 29, 2009
How do I show the error icon and ToolTip when the user is editing the cell in dataGridView?
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Feb 3, 2010
I used error provider tool to display the error when the textbox is empty. when the error message is displayed immediately it is inserting the record into the database.I want to clear the error and then insert. how to take the control to textbox?
[Code]...
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Mar 31, 2011
I used error provider tool to display the error when the textbox is empty. when the error message is displayed immediately it is inserting the record into the database.I want to clear the error and then insert. how to take the control to textbox?..Imports System.Data.OleDb
Public Class Form1
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
[code].....
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Dec 23, 2011
Have this code so that when a checkbox in a column of my datagridview is checked, then the corresponding cell in column 2 (of the same row the check box is in) will turn blue with font color white.
[code]...
I'd also like to add a line so that as well as the cell going blue, the bottom border of the cell disappears, so cellborderstyle = none.
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Dec 23, 2011
I have a DataGridView with several columns. One column is a TextBox column named "Status". This column can only show one of three values: 'Final', 'Ready', or 'No Reportable'. I want to have some code that would turn the TextBox cell into a ComboBox cell when the user left-clicks on the cell to allow the user to choose one of these three options. When the user clicks elsewhere or the cell loses focus I want the cell to change back to a TextBox cell.
Here is what I have so far, but the code throws an exception indicated below Plus, I don't think the code would remove the combobox when the cell loses focus.
Exception: "Provided cell does not belong to this DataGridView control."
Private Sub dgvCalculatedResults_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles dgvCalculatedResults.MouseDown
Dim ht As DataGridView.HitTestInfo = Me.dgvCalculatedResults.HitTest(e.X, e.Y)
[Code].....
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Aug 10, 2010
Is it possible to disable cursor moving from cell to cell in datagridview?
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Jun 1, 2010
The problem is that if you never enter anything into a cell for a new row then that cell is never validated. This is a problem because I have columns that should not be null. I am doing the check in the row level validation and storing the information about which cells are empty that should not be empty. The row level validation works fine and the row level validation error indicator goes on,(red exclamation mark at the beginning of the row) but I also need a visual indicator on the individual cells that are in error.
I am thinking that setting the HasError property for the cells that are in error should cause them to display n error style (the default red border). Is there a way to this this either from XAML (perferably) or from code?Alternatively I could cause those cells to re-validate when the row editing is finished. Does anyone know how to do this?
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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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May 4, 2010
My program in VB.net has been using in 4 years already. I coded it in my computer and run in other computer. It's modified several times and it still woked fine. Today, I modified it again. It works well in my computer, but when I run it in other computers, I got an error:
" Failed to decrypt using provider 'RsaProtedtedConfigurationProvider'. Error messsage from the provider: Bad Data."
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Sep 29, 2010
My app fails at this line of code:
Dim objConnection As New SqlConnection(Application("ConnString"))
My connection string is: [Code]. I googled this problem and the solution for it was having a malformed connection string where the "provider" was being specified when it shouldn't have. Example conn string: [Code]. I'm not specifying the Provider so I think I have a different problem.
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Mar 3, 2009
First attempt at using the error provider, I've set this up for each of the five text boxes I have on my form, when I click the button it shows the error provider flashing between the various boxes if I leave them all empty. Ideally I'd like the form to show the symbol next to the box thats empty, click the button and remove it from those which are correct leaving only the incorrect text boxes with the symbols. Any thoughts? [Code]
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Feb 11, 2009
When im using a loop in my program and i'm trying to use an Error Provider to pop up whenever a textbox in my groupbox is empty for some reason I cannot get it to work, can anyone tell me what i'm doing wrong?
For Each ctrl As Control In GroupBox1.Controls
If TypeOf ctrl Is TextBox Then
If CType(ctrl, TextBox).Text = "" Then
[CODE].............
I'm not receiving any type of error, it's just that when a textbox is blank the error provider is not doing anything.
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Jul 8, 2010
i have a picture box which in this case is my button , when i press my button(picbox) i want it to check if the error provider has got any errors and if it hasn't any errors i want it to start timer2. when i press it i get errors with the provider and after some seconds the timer2 starts.
[Code]...
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Jul 1, 2010
I have a Datagridview called DgvReturns. which contains two fields,
1) Yes - checkbox (boolean)and
2) Received Date - textbox (DateTime)..
What I want to do at run time is that when a user Checks the Yes checkbox Received Date is populated with the current Datetime.
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Jan 28, 2011
In cellEndEdit event I need current cell editedFormatedvalue ( well it is done) now my question is can we get the old value of the cell in this event or have to handle some other event for this means let I have a cell in which current value is abc and when I edit it it become def now I want to get both the values in cell end edit event ( or any else ) but finally I have to perform task on cellendedit
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Mar 2, 2009
I have a datagridview and it has 8 columns as textboxcolumns. I am handling their cell validation with cellValidating event.
My question is that if cell validation fails for 3rd column of the datagridview then the focus should move from 3rd column to 1st column of the datagridview. How can i do this?
I have tried datagridview.column(0).selected = true, when validation for 3rd column fails, but this is not working. Focus still moves to the next cell. I can stop the focus to the current cell with e.cancel=true but i want it to move to the very first cell of the datagridview.
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Mar 2, 2009
I have a datagridview and it has 8 columns as textboxcolumns. I am handling their cell validation with cellValidating event. My question is that if cell validation fails for 3rd column of the datagridview then the focus should move from 3rd column to 1st column of the datagridview. How can i do this?I have tried datagridview.column(0).selected = true, when validation for 3rd column fails, but this is not working. Focus still moves to the next cell. I can stop the focus to the current cell with e.cancel=true but i want it to move to the very first cell of the datagridview.
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Oct 24, 2010
I'm trying to set up a database connection between an ASP page running VBScript, and I have found code to do this. However, the 'provider' attribute to the connection does not work. The code is below:
set conn=Server.CreateObject("ADODB.Connection")
<strong>conn.Provider</strong>="Microsoft.Jet.OLEDB.4.0"
conn.Open(Server.MapPath("mIndexDb.xls"))
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "Select * From mIndexDbTable", conn
[Code]...
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Oct 15, 2010
I requested a Code Signing Certificate from my own domain Certification Authority on my Windows 2008 R2 domain controller.
When trying to publish my code to my webserver via Clickonce, it throws "an error occurred while signing: Invalid provider type specified"
In order to get the certificate I duplicated the Code Signing template on my CA, and tried both options available:
1) must use Microsoft Software Key Storage Provider
2) use any provider available locally
algorithm is RSA, key minim size 2048, Hash SHA1, alternative format unchecked
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Jul 7, 2010
i have a 3 radio buttons and a picture box.i have coded then picture box when a specific radio button is clicked it loads up a picture, and i want to make this picture change when you hover it but ONLY for that specific picture box. i have typed a code to make this work but it gives me errors.
If RadioButton1.Checked = True Then OnMouseEnter(picturebox1.Image = Windowsapp1.My.Resources.image1)
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Jun 19, 2009
I'm working on my first VB.NET 2.0 WinForm app. I'm trying to validate some input and I came across this fancy Error Provider control that seems great. However I have a problem with it. It seems that it only validates a field when it loses focus. I'm used to Web Form programming and using validation controls on it, but I don't see these in WinForms.
[Code]...
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Nov 26, 2010
I'm Connecting VB.NET 2008 and MS ACCESS 2007 using this code.
LocalConn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|inDebugDatabaseDatabase.mdb;Persist Security Info=True")
LocalConn.Open()
But it always return an error of The 'Microsoft.Jet.OLEDB.4.0 provider is not registered on the local machine.Im using Windows 7 Home Premium 64 bit.
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Oct 1, 2010
I have a vb.net application running .Net 1.1. for users to login in the login page has to decrypt the user login information. However, when I try to nitializeSACryptoServiceProvider, i get CryptoAPI cryptographic service provider (CSP) for thisimplementation could not be acquired error.
Initializing Method
Public Sub AssignParameter()
Const PROVIDER_RSA_FULL As Integer = 1
[code]....
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Dec 17, 2009
I am trying to link to a database. I have checked on my machine and I do have Msjet40.dll on my system?
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Mar 30, 2011
i have an VB.Net 2003 Application Program that use MS Access, that works fine in Windows XP and Windows7. But when i create that same program to VB.Net 2005 Application Program that use MS Access.it works fine in Windows XP. but in Windows 7 it shows this error Quote:microsoft.jet.oledb.4.0 provider is not registered on local machine
[Code]...
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