.net - Windows.Forms.Datagrid Error Markers?
Nov 5, 2010
I'm looking for how to set the error markers (red ! marks) in a Windows.Forms.Datagrid. After research I believe they appear after some validation routine, but how do I set these manually? E.g. If each row goes to a stored procedure I'd like to place an error marker whenever the SP returns an error
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May 13, 2010
I like to know how to make the forms buttons and text and data... auto adjust when windows Maximize or minimaze..because when its big I can see everything fine and when I restore to a smaller window the buttons are on the bottom and cant see them... Basically I want everything to look in the same position whether its a small window or big or at least that it has scroolbars if I see it small.
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Aug 24, 2011
How can you disable the multi-select using the windows forms datagrid in vb.net? I want the user to have only the ability to select a single row.
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Apr 14, 2011
An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll it also says make sure you do not have infinate loop or infinate recursion il give all code in order that they are executed in Check the chechbox and it disables all irelevent stuff and populates the combobox
Private Sub CheckBox_Spray_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox_Spray.CheckedChanged
If Me.CheckBox_Spray.Checked = True Then
[code]....
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Jun 21, 2010
OK, in it's simpest terms, I have a custom object (all string Items) which I add to a list of those items. The list is declared as a global variable. One form updates the list, another contains a dataGridView (vs.net 3.5) that displays the list items. The view displays the correct data. For some reason, if I select a header in the dgv before it's populated, that's fine, but if I select it (click anywhere with the mouse) it bugs out with an Index = -1 error from the System.Windows.Forms. CurrencyManager.get_Item(Int32 index) bit.
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May 22, 2012
I have been trying to figure out the source of error in my application. What this function (GetConcentrations()) is to display data from my database onto a DataGridView. The function is called in the PageLoad but works fine but when I call it in another Sub, I get this error.
Here is the code:
Private Sub GetConcentrations()
Dim conString As String = ConfigurationManager.ConnectionStrings("dbAsthmaConnectionString").ConnectionString
Me.dataAdapter = New SqlDataAdapter("Select * from tblConcentrations", conString)
[code]....
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Mar 12, 2010
When I do this
Public Class cInherits : Inherits Panel
I get this: Base class 'System.Windows.Forms.Panel' specified for class 'MenuButton' cannot be different from the base class 'System.Windows.Forms.UserControl' of one of its other partial types.
How do I inherit?
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Apr 28, 2010
ERROR:Error'Value' is not a member of 'System.Windows.Forms.TextBox'.
My Code:
Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
If TextBox3.Value > TextBox2.Value Then
[Code].....
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Nov 23, 2009
I have one SQL Server database with two tables:
CREATE TABLE [dbo].[Invoice]
(
[IdInvoice] [int] IDENTITY(1,1) PRIMARY KEY,
[code].....
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Dec 19, 2010
I am getting the error " 'InterectsWith' is not a member of 'System.Windows.Forms.Picturebox'. can anyone help me with this? and my code is:
Public Class Form1
Dim player_stand_l As Image
Dim player_stand_r As Image
[code]....
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Sep 28, 2010
I grabbed an example program to modify for my needs to grab data from a Word doc and transform to XML. Right off the bat I get multiple errors. [Code] I am getting Error Type 'System.Windows.Forms.Application' has no constructors.
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Aug 23, 2010
I am adapting this code from excel vba to a Visual Studio program I am writing that will list files that are relevant to given information. I keep getting an error about filesearch not being a memeber of 'system.windows.forms.application' on line fs = Application.FileSearch, I have read and saw that I should be using the DIR function...
Sub SearchForForms()
Dim fs As FileSearch ', ws As Worksheet, i As Long
Dim SearchFileName As String
fs = Application.FileSearch <~~~ ERROR[code]....
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Jul 10, 2009
Show me how to find certain text between 2 markers within a textbox.For example I have in the textbox:
this is a test [ST]MY DATA[FIN] for my program
i need to find the text thats inbetween [ST] & [FIN]...so the end result would be that textbox2 would say "MY DATA"
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Aug 23, 2009
public sub show(as owner system.windows.forms.iwin32window) error
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Nov 13, 2009
I'm using the Microsoft Chart Controls for Microsoft .NET Framework 3.5 and am having a spot of trouble getting Data Markers to show on the image.I'm generating the chart at run-time, so can't just use the designer.
Sub New()
MainChart = New Chart
MainChart.Size = New Drawing.Size(500, 200)
[code]....
Which all works lovely, and I get pretty charts.The only problem is that there are no markers on the datapoints.
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Nov 26, 2009
I am refactoring an old program to use VS2008 (instead of VS2005) and the 2003 Crystal Reports merge modules no longer work on the client machine. I am using the CR version bundled with VS2008. Neither the CR10 merge modules downloaded from the SAP site work, nor the CR x86 msi.
Could not load file or assembly 'CrystalDecisions.Windows.Forms, Version=10.2.3600.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The system cannot find the file specified.
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Nov 7, 2009
When executing this code I get this error:
Unable to cast object of type 'System.Windows.Forms.MouseEventArgs' to type 'System.Windows.Forms.DataGridViewCellMouseEventArgs'.
Private Sub NoteGrid_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles NoteGrid.CellContentClick
Try
[code]....
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Sep 2, 2009
with this code dont know wht its not working source = wc.DownloadString(String.Format("http://" & cboHSearch & "/cse?cx=013269018370076798483:gg7jrrhpsy4&cof=FORID:1&q=" + cboEngine.Text + "&sa=Search", Me.cboEngine.Text.Replace(" "c, "+"c), resultCounter))
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Mar 10, 2011
it is possible to make the collapsible markers(-) or (+) for collapsed sections/regions larger.VS 2010 Pro.
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Jan 19, 2012
following code from c# to visual basic, and I'm coming up with the following error: 'Public Event ItemCheck(sender As Object, e As System.Windows.Forms.ItemCheckEventArgs)' as an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event.
[Code]...
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Oct 16, 2011
I am trying to create an xml editor that read and write xml. my code reads the xml with no problem and allows me to create new rows but when I try to "write" it over I get the following error: "Token StartElement in state Epilog would result in an invalid XML document"
here is my xml:
<?xml version="1.0" standalone="yes"?>
<MacroList identifier="test">
[code].....
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Oct 29, 2011
I am trying to use values from form1 in my project, in form2, but Im not sure how to do it. I've tried
txtboxTotal = (Form1.vsbLength * Form1.vsbWidth) * Pattern
But I get: operator '*' is not defined for types 'System.Windows.Forms.VscrollBar' and 'Systems.Windows.Forms.VscrollBar.'
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Mar 4, 2011
im sure that this is incredibly simple but im very new to this. could someone tell me what Error 2 Operator '<=' is not defined for types 'System.Windows.Forms.TextBox' and 'Integer'. K:programmingchapter 4 labchapter 4 labchapter 4 labForm1.vb 16 24 chapter 4 lab
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Feb 19, 2010
When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
[code]....
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Nov 16, 2009
I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
[code]....
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May 6, 2009
I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
[code].....
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Nov 26, 2010
I'm upgrading a project from VB6 to VB2008.I have a routine that clears a combo box, named 'cmbDataTable' which could be on any form. I pass the form and the combo box is cleared.
[code]...
I assumed it would be the same in VB2008 but I get the error.'cmbDataTable' is not a menber of 'System.Windows.Forms.Form'I am working my way through the project, first updating the global procedures - this is one - I haven't written the calls so cmbDataTable doesn't yet exist.
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Mar 11, 2010
THis is my error: The designer cannot process the code at line 25: Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified. Please remove any changes and try opening the designer again.
Callstack is:
at Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.CreateQuoteExpression(XmlElementData xmlElement)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.XmlElementData.get_CodeDomElement()
[code]....
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Feb 6, 2010
I am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
[code].....
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Sep 8, 2010
I have the code which checks if there is a selected tab
Private Function GetBrowser() As WebBrowser
If TabControl1.SelectedTab IsNot Nothing Then
For Each c As Control In TabControl1.SelectedTab.Controls
If TypeOf (c) Is WebBrowser Then
Return c
[Code]...
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