I'm using vb2008 and trying this code to invisible the rows in DGV this code work with me, but when I change the value of Cell from > 7 to < 7 it showed me this error: Uncommitted new row cannot be made invisible.
vb
Dim cm As CurrencyManager = Form1.BindingContext(Form1.DataGridView1.DataSource)
cm.SuspendBinding()
For i As Integer = 0 To Form1.DataGridView1.Rows.Count - 1
[code]....
I have a DataGridView in my VB.net Form. I need to make some rows invisible based on a value. As there is not GridviewrowdataBound, I am trying to achieve it as shown in the below Code
Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting[code].....
When I try to do this I am getting the Uncommitted new row cannot be made visible error.
I am currently using a DevExpress (10.2) Banded GridView within my Visual Studio 2010 project. It works great except I was have an area where I allow the user to choose which columns they want visible or invisible. I noticed that if I make all the columns within a band invisible the band still remains and gives an empty column in my grid. I was wondering if there is some way to automatically
View 1 RepliesI have some forms that include a flowlayoutpanel with some items.A button expands/hides this panel.I want to make this show/hide change smoother to the users eye so added this code:
Private Sub Resize_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
If RadioButton1.Checked = False Then
[Code]...
I have made a class that represents people. When I create a new person, it causes an warning saying "Variable 'NewPerson' is used before it has been assigned a value. A null reference exception could result at runtime"
HOW I have tried to fix it.
I have tried adding value to many of the properties, but it still says that.
WHAT it is like.
It is almost like I have a string with a value of null.
My pc is 32bit and run vs2008.Once I try to install my windows app into a client laptop which is 64bit, I got an error said that
An attempt was made to load a program with an incorrect format
I've made a project with serveral forms and instances of classes.The program works fine until the last form close.2 messages were shown:1. The exception unknown software exception(0x0eedfade) occured in the application at location (?????????)2. Regular dialogue "Runtime error 217 at (????????)
View 2 Replies[ERROR]
System.Net.Sockets.SocketException:No connection could be made because the target machine actively refused it 192.168.0.59:500 at system.Net.Sockets.TCPClient.Connect(String hostname, Int32 port) at WinClient.Form1.btnSignIn_Click(Object sender, EventArgs e)
[/ERROR]
Though I dont believe the issue is with the code here it is:[code]......
I am in a trouble with this error:"An attempt has been made to free an RCW that is in use. The RCW is in use on the active thread or another thread. Attempting to free an in-use RCW can cause corruption or data loss." I am not sure if the RCW-error is related to my problem but I was having this error last January 25. It appears when I am ending my application. I ignored it. The next morning when I resumed coding for my application, the changes I am making does not appear at run-time anymore. Whatever GUI changes I make in my application (at design time), it does not make any effect any longer when I am running the application. What is causing this? I am so afraid if I have to restart my application from the scratch. I have gone far.
View 1 RepliesI have a batch file. It includes two lines, as follows: pkgmgr /n:unattend.xml pause I have run this batch file manually and it works (installs IIS on the local machine). But when I try to run it in code I get an error: "An attempt was made to load a program with an incorrect format". Here is my code to run the batch file:
[Code]...
i wanna know how to have an invisible audio playing in the background of your program, as soon as someone opens it should play.
View 3 RepliesI've a project where users can upload images onto the server and i have to add an invisible water mark into it. anyway,i've recommended that it would be better to purchase or use a 3rd party API that allows the invisible watermarking to be done using VB.NET. So i was wondering does anyone have any recommendations
View 1 RepliesIm trying to use SendKeys to an invisible cmd(that i open in the program), but I can not get it to work. it just sends the text to the program that is active. is there any way to send a specific program I'm using Visual Basic Express editor 2008th
View 15 Repliesvs2008, Binding Resource & Binding Navigator by Wizard I had drag a field from a table into the form, and the wizard had created the binding resource and the binding navigator of the required field including the 2 field I use as PK Autoinc "ID" and PK "site". I run the form, and in the BindingNavigatorAddNewItem_Click I put
[Code]...
i have a bounded datagridview with a checkbox column
I want to set to invisible all rows not checked:
For Each oRow As DataGridViewRow In dgMulti.Rows
oRow.Visible = (CInt(oRow.Cells("Checked").Value) <> 0)
Next
But if if have 5 rows and i check last 4 and selection is on 1st row, the 1st row is set to visible = false but still showing
I had this working but I have done something to not allow my data grid contents to appear.It appears to be working as when I select the buttons which call different stored procedures the records counts are correct yet no data appears in the grid other than what appears to be empty cells.
Private SubLoadAllDMR()
Dim AllDMR DMRDataLists
[code].....
I am using VB.Net and I'd like to ask how could I make my form invisible while the other objects on it are visible? When I set the form's opacity property into 0%, the objects on it are affected.
View 2 Repliesmy program reads settings from a file into an array. But i can't set the labels visibility's to false.
If Ins(2) = "NaN" Then
Label3.Visible = False
Label23.Visible = False
Else
[code]....
I want to make an invisible button where the text is visible but not the button. When the mouse moves onto the button there will be an outline of the button.basically it just blends in the element
View 4 RepliesIs it possible to make my Form invisible? Not putting Form1.Hide or Form1.Visible = false in Form_Loading. I want it to be invisible on startup, basically have no GUI.
View 12 RepliesI made a birthdaylist. You can store birthdays in it, and it will alert you on the day a person has his birthday. To do that the program has to startup when the computer starts up, and give the alert if neccesary and then close itself again. This all works, but the mainform is visible in that period.
View 5 RepliesPublic Sub View_Rows(ByVal e, ByVal Type)
rowcount = DataGridView1.RowCount
For i As Integer = 0 To rowcount - 1
[code].....
i'm using two backgroundworker on two different invisible forms.One bgworker starts to work before the second, it depends on the cpu usage calculated every minute.
When the second bgworker starts to work, an operation me.invoke is called to show a message, but when the code reachs the comand, the system give me this exception : impossible to call invoke or begininvoke method without a form handle.The me.invoke method is called during the dowork fase of the bgWorker.
Im looking for an event that fires after a user enters a tabbed page and after the datagridview on that tabbed page is painted. BUT only fires on the load, not every single time the datagridview is painted. I am making rows in the datagrid invisible to the user based on wether or not a checkbox in the row is checked.
If I do this on the Tab_Enter event it paints the datagrid before I can loop through the records and change the visible property And if I do this on the Datagridview_Paint event it fires everytime the datagrid is painted (I only want it to fire once)
[Code]....
I'm having a problem with my form: all controls are suddenly insvisible! They are still working, though. It looks like this now: [URL] The menu items File, Edit, View and Extra used to be in the yellow bar above, but now they're gone, just like the status labels in the yellow bar below.
View 1 RepliesIn my Grid View ,When a button is clicked,i want to insert that row in to database and at the same time make the row invisible in the Grid View. I can insert in to database but can't make the inserted row invisible.
[Code]...
I understand the properties to change a button from visible to invisible, but I need to be able to have two buttons alternate visibility when the first button is clicked.It's for a game. The first button is to "Begin Game" and on open, the invisible button that sits over it is called "Begin Again" which I would like to only appear once the Begin Game button has already been clicked. This would then trigger the "Begin Game" to become invisible.
View 3 Repliesam trying to make use of inheritance to keep consistency in my user control appearance. I created a usercontrol to use as my base design, as a platform to link to a tab as acontainer. To this I added a few framing visual items like a header panel andsome labels.I then created another usercontrol that inherits from my base control, with the intention of adding the necessary items to this derived control to build it into a complete functional usercontrol that I can associate with a tab on my main form. I want to keep the visual appearance consistent across all similar derived controls. Then later if I change the design of the base form, this flows through to the derived controls.
View 7 RepliesI'm using a richtextbox which contains some invisible text; this is so I can have the user add a hyperlink - the code inserts the hyperlink as invisible RTF text after the link text. The problem I have is trying to delete the hyperlink - if I try and set the selectionstart and selectionlength to select the hyperlink, they ignore the invisible part (which is all of it).
So, how do I select the invisible text so it can be deleted? - I have the appropriate index and length available. An alternative approach is to somehow map the index to find the location in the rtf property of the RTB and delete the text in there;
I'm making a program that changes a word then adds it to a listbox, the only problem is, when I change the word, I don't want the change to be noticeable, are their any invisible characters?
View 24 Replies