FormLoad - Cannot Delete Row From DataGridView
Mar 31, 2009
I am using VB 2008 .net3.5. I have a form with a datagridview. The datasource of the dgv is a BindingSource. The datasource of the binding source is an object and the datamember of the binding source is a List(Of T) from that object. On formload, I create a new object with new and give the list some values and Set the datasource of the binding source to the list. The dgv loads the data but I can't delete a row. The AllowUserToDeleteRows is set to true. I select a row and nothing happens. Just to be sure I went back and did the EXACT SAME PROGRAM with C# .net2.0 and of course the dgv allows me to delete a row.
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Apr 6, 2009
I use a datagridview where the rowheaders frustratingly stay blank after I load the form. If I modify/add/delete anything the rowheaders pop up. then when I sort by clicking on a columnheader the rowheaders become blank again. all these actions (load/add/modify/sort) go through the same refresh function. I can't seem to figure out why the rowheaders sporadically show up. they should stay visible all the time. btw, datagridview.refresh() doesn't work
[Code]...
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Mar 24, 2011
I am having, and it may be related to another issue i am having, but im not sure.I have a form that all of a sudden stopped executing the formload event.i checked the initialize component method, stepped through it, and it runs fine.the formload has the handles clause on it. i put a breakpoint on formload and it does not stop on the sub header. so could it be part of this issue?::: every once in a while, the code parser breaks, and reads partial lines of code (designer generated code at that)...so an error that pops up is Error in line "clearBeforeFi" not recognized....in dataset designer code, it is reading half the line, seeing it as the whole line, and i get a thousand errors. I restart the IDE, and that is fine again.....
however, this formload thing does NOT want to go away.it shows the form, runs the initialize code, so it shows the form fine, but executes nothing.[code]...
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Oct 12, 2009
I want my application to be able to be changed by the user. For example on my form I have the labels Blue, Red and Green but the user requires yellow and another colour which is unkown to me so they would have an ADD function which saves to the database so next time they login their colours are there as labels.
How would you pick up the name of the colour from the database? and place that into your code to create a dynamic control with the same name as the colour which is unkown?[coded]...
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Dec 31, 2009
I'm having trouble getting a If Statement to work on a button.It will only work when on the "Form Load" section.Heres the If statement I'm trying to put on the button press event.[code]
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Jun 7, 2011
I have a project which is 98% complete. Its basically a Shop(till) interface. I have a form that has tabs the first being the main till, second shows a listview with everything in stock and the quantity of items in stock. Im stuck on one part of the program where when the form loads it checks the stock and if any of the items have a quantity less than 5 for example than it displays a message box to the user telling him/her to order new stock, but im not sure exactly how to do that.
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Mar 6, 2012
i have a issue when i load my ini to my listbox and 'this my load ini to listbox
im a As String = My.Computer.FileSystem.ReadAllText("movieextlist.ini")
Dim b As String() = a.Split(vbNewLine)
ListBox1.Items.AddRange(b)
try to scan for extentions it crashs, BUT if i do on formload listbox add every ext 1by1 it works. if i use the load and hit scan it crashes
Using FB As New FolderBrowserDialog
If FB.ShowDialog = Windows.Forms.DialogResult.OK Then
For Each Ext As String In ListBox1.Items
[code]....
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Jan 7, 2010
One of my clients is going from Server 2000, SQL 2000 w/ VB6 to a new environment of Windows SBS 2008, SQL 2005 standard 64bit, w/ Visual Studios 2005. We have a custom built app written all in VB that has been converted. We already took care restoring the databases and setting up the odbc and such. After conversion, the app threw a couple of errors, and warnings, which have been fixed. We have a formload function that is supposed to populate 2 fields with dropdown information. One is a folders list in outlook and the other is a send recipient. The Recipient field populates fine and the outlook email box does not.Here is the formload code. I can't figure out why this would allow one box to fill and not the other.
Private Sub frmProcessEmail_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
'starts up email
start()
[code]....
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Jun 3, 2011
is it possible to call form load event on button click
Following is the vb code i want same function in vb.net
Private Sub cmdaddcancel_Click()
Form_Load
[Code]......
in vb we simply call Form_Load is it possible in vb.net
For eg: IN VB.net currnetly i am on form no 1 and there is one button on click of dat button i want the current form should again load is it possible
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Oct 20, 2008
The Title says it all Adding Multiple Checkboxes on FormLoad Depending on Amount of Items In Database. [code]
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Jul 14, 2009
I use this code to delete row in datagridview. but it is error :
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index[code]...
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Mar 10, 2009
program outline:I have a sql databse Records which has 3 columns accountid, passwords and validity. I successfully programmed the insert record function via Add button. I also have Datagridview. I want to have a function which will delete the record from the datagridview & database when i would click the right button. I have properly applied the contextmenu for the datagridview. but However i am couldn't able to function it properly. how to do thisow to delete record from datagridview by using right click functi
Code:
Imports System.DateTime
Imports system.Data.SqlClient
[code].....
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Oct 13, 2009
I have 1 datagridview which display the columns which is name,telephone and selection which is the checkbox and 1 button which is delete button. So what I wanted is that to delete one-by-one when the checkbox is selected. Here is the code that I use which is to display the data:
Private Sub Contacts2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim sql As String
[Code]....
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Oct 27, 2009
I bound the DataGridView with Database.I have checkboxes in the first column.I want that on button click,delete rows whose checboxes are checked?
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Jan 7, 2010
I want to delete row in datagridview, this (DataGridView1.Rows.Remove(DataGridView1.CurrentRow)) works fine if row is selected , but if it is not and you press on the delete button appears error, for this i wrote this code
On Error GoTo 1
DataGridView1.Rows.Remove(DataGridView1.CurrentRow)
1:
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Nov 23, 2009
I'm new to VB and using a datagridview for the first time. I've spent the last 2-3 days trying to get row deletion to work and can't do it. I've tried every piece of code I can find on the internets, and none of them are doing it.I have the selection mode set for full row, with a delete button on the form. Clicking it will delete the row from the DGV, but the changes are not going back to the database. Here is the code I'm using right now in my delete button event handler:
[code]...
The row disappears from the DGV, but not from the database. I've gone back and started from scratch a few times now
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Mar 18, 2009
how to go about the code for a button to delete the row in a datagridview. i have rows of data in there with a button at the end of the row. the difficulty im having is assigning the values in the row to delete it from the data grid and then update the database to remove the entry.i've tried this but it doesnt work? i'm sure there will be some short statement to do it but dont know what it is.
Private Sub rentalDataGridView_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles rentalDataGridView.CellContentClick
For Each row As DataGridViewRow In rentalDataGridView.SelectedRows[code].....
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May 14, 2012
imports System.Data.SqlClient
Public Class Form3 Inherits System.Windows.Forms.Form
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim ra as Integer
[Code] .....
Attached File(s)
deleting.txt (793bytes)
Number of downloads: 9
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Feb 10, 2010
I have a VB 2008 program over the Northwind DB customer table.It uses LINQ to add, delete and edit records.
So I load everything into a datatable/dataset first.The Add and Delete occurs when the buttons are clicked on a binding navigator. The edit occurs when a cell is changed, and that row is clicked off. I've set the Customer ID field as the primary key in the DT. I then bind everything together with a binding mavigator.
So far so good, Adding & Editing works nicely the DGV & customer table . [code]...
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Jul 28, 2009
I have a data which is saved in textfile. when form load the data in text file will be load in datagridview. i want delete the selected row from the datagridview. I used this coding to delete.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim row As Integer
[code].....
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Apr 29, 2011
How can I delete a cell value in DataGridView?
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Mar 15, 2012
I want to know how to delete a current row from DataGridView and this will automatically deleted from my database (MySQL)
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Nov 30, 2011
i dont know how to delete datas from datagridview in vb.net.
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Mar 17, 2009
I am able to delete one, but I need to delete all records, do you know any command that will work?
am using this code but still wrong databasename.table(tableName).delete() and am also cannot compact the database properly... am always get this error
" Database already Exits" .. this is my code
[Code]....
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Jan 3, 2012
how can I delete all the rows in a DataGridView remaining only the row of column headers
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Dec 12, 2010
I am new to vb.net 2008. In a datagridview I added a column with checkboxes. I need to delete the checked rows only.
[Code]...
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Oct 3, 2010
i have a Datagridview on my forum and when i Populate it it auto creates a empty row at the end of the grid... i have looked online and seen a few post about it but nothing seams to work... i have tryed...
DataGridView1.AllowUserToAddRows = False
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Feb 5, 2009
Im making a program that displays television shows and the time they are on. Im using a datgridview and a MS Access Database and i got it to add items at the right times and I can delete the items but i have to use e.rowindex as the value object for the delete dommand.[code]...
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Dec 17, 2010
i used v s 2010 i have one problem..when i delete more then one rows from backend database using datagridview's checkbox....when i delete continus more then one row it maintain a my field NO in backend....... but suppose when i delete a row 2 and 4 then.......it can not maintain a backend.....
my programming is that *When i delete a row then all then getherthan of that row s No field Number is like n=n-1 *
[Code]...
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Nov 3, 2010
I am using a datagridview where I added a checkbox column. Now I want delete these rows where I marked the checkbox and finally click the delete button.[cod]e...
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