Loading A Form And Reinitializing Updated Values
Jan 25, 2010
I have a question and I hope it is a simple one. I created a form that "on-load" pulls a value from a .mdb query and assigns the value to a variable. This value is used in generating a new primary key for an associated table. The form works perfect except that if I close the form, and then reopen it, it does not give me the updated value which is written to the database. I know in VB6, you could use the "unload" method to exit a form and when you "loaded" the form again it would start new with the updated value. How do I go about this in VS08? If you don't understand what I am saying, here's the example...
[Code]....
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Mar 16, 2009
Sounds simple enough, but its not working. In this example, I want to set the values of 3 fields to equal a 4th. I could do something like this..[code]...
Values in the param array did not get updated in the return! I was expecting to have all of the final values now be "1", like they are in the Function.
Is there any way to get an update-able ParamArray collection like this? ParamArray must be declared ByVal, but with a reference type like String, shouldn't that only make a copy of the pointer and allow me to change the underlying value?
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Dec 3, 2009
Basically I have two forms - Form1 has a DataGrid on it (Infragistics) and in the double-click row event it creates an instance of the EditForm and passes along the UniqueId for editing. Once the user saves the changes (if they make changes) - I want the DataGrid on Form1 to refresh. Here is how I thought I could get this to work ... I create a public property called RefreshRequired as boolean. Before unloading the EditForm it sets this property to true. Then Unloads. This continues the code in Form1 (which showed the EditForm as modal) but RefreshRequired is still showing as False? Why isn't my EditForm able to set the property?
FORM 1
Private Sub grdList_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles grdList.DoubleClick
' TODO Ignore Double-Click Event when Right Mouse Button Triggers Event
[code]....
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Jul 1, 2009
part of my code is in below
[Code]...
I would expect to see the path.Path include the new record, however, I also notice that tempnextgen also include the new record. Can anyone help me out on this issue? Why the tempnextgen got updated as well, how to prevent this unexpected operation?
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Jul 7, 2009
I am using the project management database created by Microsoft to track our projects. I would like it to notify (send an email) out to people once they are added to a project. And then send another one out when their due date is a couple days out as a reminder. Can someone help me with this. I am not a guru at programming and am just starting to get in to it. I would love to get this task done and then I think this database is complete. ( I am guessing I need to use the DoCmd.SendObject, but from there I am lost and what needs to go before it.)
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Dec 16, 2011
I have an application I've written for some of the people at work and there is one bug that I have no idea how to solve. The application is multithreaded so that the main form can be updated with new information as it comes in. Throughout execution, several other forms come up as well (one at a time).Every so often I get reports that the program freezes. When I check out the program it looks like the main form is not being updated(checkboxes are see through, textboxes are blank) and the main form can't be moved around. This only seems to happen sometimes when the program is left for long periods of time (+30 min) and only on the released .exe and never in the debugger(as of yet). I've tried leaving the program running overnight and it had no problems.
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Jul 25, 2011
This VB.NET rookie is asking for the support of those with expertise. BACKGROUND: Form1 has a Datagrid, Dataset1 create by drag DB into datagrid. Form2 presents the record selected from the datagrid. Within the LOAD_FORM I search the DB with the Key and place data in Dataset2 (DS created manually)
CHALELNGE Record updated in Form2 is saved in DB fine and when Form2 is closed, record updated does not appear in Form1. I�ve tried the following but no sucess In form1 event Ive got the code to load data into the DS Me.TUSERSTableAdapter.Fill(Me.PTDataSet.TUSERS) FINALLY: What should I do to see the datagrid updated?
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Jul 16, 2011
I have written general module to transfer the grid values into respective textbox. For that I pass Listview control of form & parent control ( e. g. groupbox ) of textbox.
The module loop trrough each column of grid & store the value in respected textbox ( the textbox names are identical as that of grid column) It works fine, but when I pass tabcontrol it does not work
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Aug 10, 2011
At the moment, I'm writing tons of custom control, which all fits my needs. But the thing is, each time I Debug the project, it doesn't update the form designer at all, not even the code. My solution to this is to Rebuild the project, which can take time. This is very frustrating.
I'm using Microsoft Visual Studio 2010 Ultimate to compile.
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Aug 26, 2011
Im Using VB 2008. I have MsgBox() statements in all Mouse & Form Click events to TEST & NOTHING FIRES during Form Load when I click on Form or Button Controls !!! The Form Load event contains code for Displaying the Label.Text control many times with changes in the Text to simmulate annimation.
[Code]...
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Jul 18, 2010
I am doing a small MS Access database based program, but I got one problem. Instead of loading the the rows like this (each nr is the count of the row):
"1,2,3,4,5,6,7,8,9,10", it loads it like this: 7,8,9,10,1,2,3,4,5,6
Here is my code for where it loads the data:
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source =" & Application.StartupPath & "\Filmer.mdb"
con.Open()
sql = "SELECT*FROM Film"
[Code] .....
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Mar 9, 2011
I have a few combo boxes that need to be loaded up once and displayed multiple times (whenever the main form is opened) The reason for this is because it's taking about 10 seconds for the form to load each time it's opened due to unnecessary re-querying. Here is an example of what I have as a combobox source and what I've done. I've put the query, connection, etc... in a module and call it on the login form - I don't get any errors but the data does not load into the combos.
'In Module
sql = "SELECT DIR_ID, DIR_NM FROM LTC_FBS_DIR ORDER BY DIR_NM ASC"
RConStr = String.Format(RConStrFormat, LoginForm.txtUser.Text, LoginForm.txtPass.Text)
'using instead of dim connemp
Dim connemp4 As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(RConStr)
[Code] .....
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Nov 13, 2009
The problem is this: I have two forms. One form and the other form do mathematical calculations. I want to save the values that the user inputs, so when the user quits the program and then starts it up again the values are still there. But when I open up the program, start typing in values, then calculate them, hit quit. Try to open up the program again, its giving me a message that the input file is invalid. When I click ok, the program doesn't crash, continues. But the values are not there at all. The other form I put exactly the same code, just changed the variables and it doesn't want to save the values at all! I wrote this code for saving and loading the values:
[Code]...
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Jun 14, 2010
Is there a way to turn off all visual updates to a .NET form while I am manipulating it? When my program first loads, for example, I set the tab control to the tab that was last open. The user can see the program switching tabs.
I have looked into SuspendLayout and ResumeLayout, but either I don't understand what they are doing, or I am not using them correctly, because they don't seem to have any effect. Someone told me that there used to be a way to turn off paint events in VB 6. Does this still exist in .NET?
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Aug 29, 2011
I have 2 forms. When a user clicks something on form1, form2 pops up. After user is done with form2 and closes it (where the dataset is updated), I want form1 to "reload" the dataset to reflect changes made in form2.
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Apr 26, 2012
How do i load the Main form of a WPF so that a seperate thread goes and gets data from the database while the form is in an apartmentstate ? (drag-able / movable) I Know this is possible with opening a new window from your main form like this :
Private Sub openOrderWindow()
Dim OrderWindow As Orders = New Orders
OrderWindow.ShowDialog()
End Sub
[code]....
I've tried putting MyBase.ShowDialog() and .Show() and .9000+ other things The only benefit I've got out of using a seperate thread to load from the databse is i can see the screen right away (as oppose to it being a transparent box until it loads) but i cannot move it around or minimize itis there any way to make it Movable while it loads?
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Dec 3, 2002
Does anyone know of anyway that it would be possible to speed up the process of loading forms.With VB6, forms (simple ones) was extremely fast but with VB.net, the initial loading of a form (even the simplest one) takes very long. Although it gets better once it's loaded once and the reloaded the next time (almost instanttaneous), but the first time loading gives a bad impression to any user that .net is actually much slower.
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Mar 6, 2009
I've got 2 forms; form1 and form2.
Button1 is added to form1.
When I click button1, I want to close form1 and open form2.
I tried the following.
me.close
form2.show
Its not working. Form1 gets closed but form2 is not showing up.
When I use the following code
me.hide
form2.show, its working.
But hide will not unload form1 and it will still occupy memory.
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May 5, 2011
In my form3 i have this code
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim vs As Integer
[code].....
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Aug 11, 2010
I am using Visual Basic Express Edition 2008. I want my main (and only) form to not be re-sizeable.
FormBorderStyle = FormBorderStyle.FixedDialog
To my main form load function. However, when I add this code, the form loads over my splashscreen. I am trying to have my splash screen displayed for a set amount of time
[code].....
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Jun 8, 2011
I have a form let's call it Form1 that calls another form(Form2) Form2 to has a bit a code that needs to load in the LOAD_EVENT and takes about 4 seconds.
I have made a new form(frmProgress) that only has a progress bar.I want frmProgress to show up and load the progress bar meanwhile Form2 is loading.I've tried using BackgroundWorker but I can't seem to get the grasp of it.
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Aug 10, 2009
How I insert loading bar into vb.net form? I want insert loading bar with information that step in loading. I want to show info like when we install new program, in install program we will see progress installing.
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Jul 5, 2009
I have an application developed in VB.NET 9.0. I am trying to load a form when the application loads. It is basically a form without border and has a .gif on it. Actually when the form loads I cannot see the gif.
frm.FormBorderStyle = Windows.Forms.FormBorderStyle.None
frm.StartPosition = FormStartPosition.CenterScreen
frm.ShowInTaskbar = False
frm.TopMost = True
frm.Show()
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Jan 7, 2009
could you please tell me how to load a child form in a parent form. since i am a beginner i have some confusion ..
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Aug 5, 2009
When my form first loads or when it closes a number of events which I have in my code fire, such as a combo box's selected index changing as it populates. Is there anyway to prevent this from occuring? Currently I use a boolean variable which I set to true/false depending on if the form is loadig or closing and then each of the events first check this value before they fire.
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May 5, 2009
Is there a easy way to show some form of progress bar on your form in ASP.NET that the code is busy running in the background (meaning thinking)? Like the default I.E have the small little window on the top that moves when its thinking
I have done this before with Ajax but its alot of work and my site is not a Ajax enabled site.
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Dec 3, 2009
Problem: Form hasn't fully initialize but shortcut keys can be usedDetails: Launch an mdi child with database access retrieving data, and user is already using the shortcut keys while the data is still been retrieve which results to error since object hasn't fully initialize yet.
Goal: Hinder user from using shortcut keys by disabling the keys at initialization then enabling it after all objects are good to go.
Another Situation is:A form with a gridview and a button.I got a hotkey that when press, handles a gridview getfocus event.
The problem is that the gridview is still making its instance and when press the hotkey, it activates the getfocus property of that gridview(which is still creating its instance).
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Jan 31, 2012
I have a form that I need to show "nonmodal" while I do some work, the form displays a label that outputs strings captured from a cmd window. So I am doing it like this
Dim f As New AutoRDP()
f.Show()
f.doit()
f.Close()
Private Sub lockprompt_Load(ByVal sender As System.Object,
[Code] ......
The problem I have is I can load the form correctly.. all the elements loads up blank. But if I use showdialogue() it loads correctly, but I cant return to do my work..
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Oct 17, 2011
Problem:Combo Box in CHILD MDI Form is not reflecting the "data" added from the table1. I have an MDI Parent form, and MDI Child Form.2. The Child form contains a Combo Box, and i want to load the data to this combo box dynamically "selecting from" a table. I am able to select from the table, and using the following code to add rows to the combo box
frmForeignKey.cmbSource.Items.Add(targetSSID) frmForeignKey.cmbTarget.Items.Add(targetSSID)
3. The Child form is called with the following code from MDI Parent form
Dim fkChild As New frmForeignKey fkChild.MdiParent = Me fkChild.Show()
[code].....
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Sep 1, 2011
Problem is, i do have two forms. Form-1 is the parent and Form-2 is the child. Form-2 is having so many executable functions built in. Therefore when i am calling form-2 from form-1, always that takes few seconds to upload(although negligible).
Now I got a very nice ajex_loading.gif picture (moving) form Google and was thinking why not showing that pic in between my form loading process. Added PictureBox property. Telling it to show()...but still that is feeling shy at me
[Code]...
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