Checkbox In Datagridview Not Working Properly?
Aug 16, 2010
I have an unbound checkbox in my datagrid view along with other bound fields from a dataset. I do not need to send back the checkbox status to my dataset or the DB. Instead I will loop though the DGV and look for those checked and do another process with them after its done being loaded. The problem is this. When I check a checkbox, then check another, the first one goes back to unchecked and so forth, back and forth. There is no add, update or deletes needed for this DGV.
[Code]...
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Jan 25, 2010
i have a windows forms app which displays a bunch of records from my sql database. when i modify records in the grid and click on save, all changes are saved EXCEPT the changes made to the currently highlighted row. they aren't written out the database until i exit the actual program, despite clicking on my save button.so for example, if i change 5 different records in the grid, and click on save, and then click on refresh to reload the data from the database, 4 out of the 5 are saved correctly, but the row that is currently highlighted (meaning, the last row i changed) still has the old data.My code for the save button look like:
Code:
Private Sub TerritoryBindingNavigatorSaveItem_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TerritoryBindingNavigatorSaveItem.Click
[code]....
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May 6, 2009
I added a tooltip control in my form and set a tooltip for a checkbox. The tooltip shows fine until I check the checkbox... If I check the checkbox once and uncheck it, the tooltip never shows up when I hover the mouse over it... How to make the tooltip to show on mousehover no matter the checkbox is clicked or not?
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Nov 22, 2011
I have a DataGridViewCheckBoxColumn who's column name is "booReadyToReport want to hide all the checkboxes in this column if "bintAnalyteCodeID" doesn't equal the selected value in a combobox on my form. ut I run this bit of code the DataGridView DataError event fires currently, have nothing in the event except an comment. he code seems to work, but I'm new to VB.NET and I'm wondering if this is the correct way to handle thishould I use the CellPainting event?
highlight rows with RBF3
For Each dr As DataGridViewRow In Me.dgvCalculatedResults.Rows
f dr.Cells("bintAnalyteCodeID").Value = Me.cbxAnalyte.SelectedValue Then
[code].....
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Mar 14, 2011
In my word processor I have an 'Open' option on a menu strip. Here is the code for it:
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
With ofdFile
.Title = "Select a file to open"[code]....
For some reason when I press the 'Open' item and open the ofdFile dialog box .txt files do not appear even when I have the 'Text Files' filter selected However, when I use the 'All Files' filter they appear. And the 'HTML Files filter is also working properly.Why are the .txt files not appearing when I use the Text Files filter?
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Oct 18, 2011
I don't even know where to begin describing this. I have a project, that uses settings, for some paths, settings that I retrieve with the My.Settings. function.In my laptop, when I change the .exe.config file, the settings are updated accordingly, but when I try that on the production server, it just shows the default value used while compiling.
I tried changing the solution configurations to debug and other custom configs with no effect.Tried to use the same folder copied and pasted without version control, still the same result.Tried a co-workers laptop, by using the last svn revision, it works there too. But on neither of the servers works.
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Apr 17, 2012
I cannot figure out why my calculation is not working. I am doing for 1 to 12 and it gives me 12 inputs but counts my entries as 13? What am I missing. If I change it to 0 to 11 same thing. I am not sure what the issue is, but I cannot see it, and am not sure where to look.I need to end up with 12 cycles through and intEntries to be 12.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'initialize accumulator
Dim decEntries As Decimal[code].......
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Nov 1, 2009
dim testpanel as new panel
dim test as CType(testpanel, Control))
msgbox(typename(test)) ' it gives me "panel"
'i dun get it, how can typename of test give me Panel when i explicitly call it to be converted to a Control type?
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Jul 4, 2011
So I opened 2 forms, Form2.vb and Form3.vbNow I put this:
Private Sub Form1_PreviewKeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs) Handles Me.PreviewKeyDown
If e.KeyCode = Keys.F8 Then
[code].....
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Mar 25, 2012
i am making a simultaneous equations program and cant figure how to get passedtext properly working, as i declare the amount questions the user wants to answer in the settings form, it then passes this over to the simultaneous equations form and i cant get it to keep spawning questions until the number is reached.
Public Class simultaneousequations
Dim Random As New Random
Dim typeofquestion As String = Random.Next(1, 3)
[code].....
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Oct 1, 2011
I have some System.Collections.Specialized.StringCollection 's in my.settings and the won't do anything: I have tried adding things to them and I get a null reference, now I have used these before and they worked fine I have tried reading from them, like I have in the past, and it dosen't read anything; the strings come out emtey as in one emtey string when there is three full strings
[Code]....
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Jan 21, 2012
I have 6 textboxes (named textbox7, 2, 3 , 5 and 6) and i want to switch the values put in them (7 in 6, 6 in 5, 5 in 4, 4 in 3, 3 in 2, 2 in 7) by clicking a button.Actually this should be a volley formation scheme :Pi wrote this
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
TextBox7.Text = Replace(TextBox7.Text, TextBox7.Text, TextBox2.Text)
[code].....
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Oct 8, 2011
Using VB.Net
i am using controls (textbox, combobox, checkbox, etc) with Groupbox and without groupbox in the form
Tab function key is not going to the Groupbox Controls
For Example
Form1
{
Textbox1
[Code]....
Once form1 loaded, textbox1 will be focus, then i click the tab it's going to textbox2, combobox1 and save button. The Tab is not going to Group box (textbox3, checkbox)
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Feb 13, 2012
So I created a store procedure on my Sql Server 2008.
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May 24, 2009
I've defined a public property in a mdiParent form
Public Property StatusBar_LastChecked() As String
Get
Return Me.Statusbar1_LastChecked.Text[code]....
Now when I run the code, the msgbox shows the current text and then the new text. BUT the actual text in the StatusBar remains unchanged.
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Jun 29, 2011
I got the following code from net,its working sometimes but sometimes not working, why?Its not showing the video by every click of the button Preview.I want some better code which will work smoothly and will show the video by every click. [code]
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Jun 14, 2011
I'm using fileopen() function to open the file, after doing all the works I'm using fileclose() to close the file. But when I access the file again it returns already the file is opened by another process.
Sample:
Dim intFile As Integer = FreeFile()
FileOpen(intFile, mstrFilename, OpenMode.Binary, OpenAccess.Read, OpenShare.LockWrite)
FileClose(intFile)
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Mar 27, 2009
I designed a software in which I used active captionas background colour. Now It works on my computer or current OS but not working properly onto other computers or OS. I mean to say that the background colour
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Apr 23, 2011
i followed a few tutorials on here to create a calculator in VB.NET. But i am having trouble getting the percent button working properly.I have tried to come up with some things but nothing i have tried is working.I used this Basic Calculator VB.Net and this one Create a Calculator.I have searched google for an answer but it seems what i have is not working.Im not sure exactly what is needed so i will post all of the code i have. [code] My percent does not work it multiply's by a random number is seems.I am new to VB.NET so im not sure what i am missing.
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Feb 11, 2010
have an xml file like this.
<?xml version ="1.0" encoding ="utf-8"?>
<menu>
<menuNode title="Register" value="true">
[Code]....
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Oct 8, 2011
Using VB.Net (Windows Application)
In the Form, textbox, combobox etc....
-> When i open the windows form, if i press ctrl + Enter, then pop windows is opening
-> if i enter any data's in the text box, then i press ctrl + Enter, then pop windows is not opening
Code
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.KeyPreview = True
End Sub
[Code]....
When the form load, ctrl + Enter shortcut key is working, once i enter or select any data's in the form, then ctrl + Enter shortcut key is not working (not showing the popup windows)
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Nov 24, 2010
I am facing a really very interesting problem with string.
My code is
[Code]....
But when I comment those lines (which are uncommented in code above) its working fine.
I am taking value in filepath variable from file dialog's FileName property.
EDIT: I have also compared the values of variable stropt and strwithpara with "IF" condition and found those are same.
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Feb 8, 2009
I am using VB 06 code for MS winsock and no im not supprised its not working properly but I cant find any tutorials anyware for VB 08 and its starting to anoy me. I have managed to reorginise some of the code so it works but im at a loss to know what to do to correct these errors. .
Send Button
sckmain.SendData("[" & txtname.Text & "]" & txtsend.Text)
txtlog = txtlog.Text & "[" & txtname & "]" & txtsend.Text & vbCrLf
txtsend.Text = ""
Host Button this works:
sckmain.LocalPort = txtport.Text
sckmain.Listen()
Connect button this works:
sckmain.RemoteHost = txtip.Text
sckmain.RemotePort = txtport.Text
sckmain.Connect()sckmain.RemoteHost = txtip.Text
[CODE]...
Connection request
If sckmain.State <> sckClose Then
sckmain.Close()
End If
[CODE]...
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Jul 7, 2010
I need to calculate the number of weeks between 2 dates. This will be used in a billing system.
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May 15, 2011
I have some DataGridView code written in vb.net. (Nothing is attached to a datasource.)The 4th column is a checkbox cell.How do I detect if that checkBox is checked or unchecked?This code strangely reports TRUE or FALSE at random times. It even turns ON the checkbox in rows other than the row I clicked in. (Huh?)
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
Dim whichGrid As DataGridView = CType(sender, DataGridView)
[code].....
I've tried countless other methods... none seem to actually get the checkbox ON/OFF value in vb.net.
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Jun 3, 2010
If you try to access a password protected page it does a security check and redirects you if you are not logged in, retaining the URL (ie. Members/MemberLogin.aspx?oc=/PodCast/Default.aspx)The vb script places the "/PodCast/Default.aspx" in a variable and holds it until the login process is complete.Once the user types in their username and password it is suppose to do a Response.Redirect(strRedirectURL) and go to the "/PodCast/Default.aspx" but instead it goes to the default.aspx page for logging in successfully
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Mar 23, 2011
I am using Visual Basic Express 2010.
I have programmatically set up a Datagrid and binding navigator etc., but I cannot get the movenext, movelast buttons to actually hook up to the Data on the Datagrid.
I have tried to set up an addhandler for the BindingNavigatorMoveLastcontrol, and although I can get the BindingNavigatorMoveLastcontrol to display my messagebox
WHICH IT DISPLAYS TWICE FOR SOME REASON I cannot get it to actually move around the Dataset, or any of the other navigation properties for that matter.
Wednesday61
Imports System.Data.SqlClient
Imports System.Windows.Forms
Imports System.Drawing
[Code].....
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May 23, 2011
In my windows app i have a button which is only visible when a user selects a certain value on a DropDownList. For some reason the button does not work when i click on itI've enabled the button on page load and it works, however when i choose the value on the Dropdownlist the button does not work.
Protected Sub DropDownList4_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles DropDownList4.SelectedIndexChanged
If DropDownList4.SelectedValue = "Yes" Then
[code].....
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Jun 20, 2012
I have spent a long time trying to find a solution for the problem I am having with comboboxes within a child form. I'm sure this must be a Microsoft error and not something I'm doing wrong..The best way to explain the problem would be to tell you what I have done so far:
If you open a new Project in VB and add two Windows Forms. Form1 will be the parent. Form2 will be the child.On Form1 add 1 x panel(Form2 will open up within the panel so make sure the panel is big enough to fit Form2) and 1 x button. The only code needed for this form is:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
Now run the program and click button1 to open form2 (form2 should now open within panel1).
The comboboxes and textboxes lose some of there functions for example:
1. You cant set focus on combobox without hitting drop-down
2. You cant highlight text properly in either the combobox or textbox.
3. You cant set the cursor index position using your mouse in the combobox or text box.
Does anyone know a way around this?? Mainly for the combobox as I've got some functions working for the textbox.
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May 21, 2012
I am having issues with a combobox set to:
AutoCompleteMode = Append, AutoCompleteSource = ListItems.
Example: Items in the combo are: "Average", "Good", "Poor". If "Average" is selected in the combo, then I type "G", "Good" will autocomplete. But if "Average" is selected, tab out of the control, then tab back into the control, then I type "A" nothing is autocompleted. It just shows "A" in the combo.
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