Select The Type Of Entry Which Opens The Respective Form?
Jul 21, 2009
I am using VS 2008/VB with Access 2007. I have 2 forms that I use to create entries. In the first form (fomr1) I select the type of entry which opens the respective form (form. In form1 I use some code to read through a oledbreader the id rows and get the max value in that column. I take that value and I add 1 to it and then assign the value to a textbox in form2. The whole process worked fine until today which gives me this exception "An error occurred creating the form. See exception.innerexception for details. The error is Object reference not set to an instance of an object. "
I need to create a program that requires password entry. I was thinking of having a form that the user uses to set the password that only opens once (unless a button on the main form is clicked to reset the password.) once the password has been set, the form closes and another opens to enter the password and for each and every time the program is run. Another thing is that if the password has been entered wrong 3 times, the program gives a message box and closes on the ok button.
i m doing project in vb and database is microsoft accessin my form i have 3 radiobuttons and 3 combobox when i select radio button then respective combobox enable and remainig disable i load all the data in combobox through data reader the problem is user can select different radio button so as query also changes to fetch the data from databse whenever i select 1 rasio buttons its work whenever select it not work [code]...
I'm trying to check if a LINQ Entity exists in its table, but at design time I dont know what type that entity is. So I figure I'll just get the table, and try the Contains method on it. But I cant get the table in such a way that I can query it at design time.I've tried the GetTable method on the datacontext, but I dont know how to cast it to the appropriate type when using GetTable(Of). GetTable(Type) works, I just use Entity.GetType(), but then I don't know how to query the ITable thats returned.To try and cast the ITable to something useable, I created an interface(IWhatever) that could implement properties that are native to all of my entities I would encounter. [code]
I have a form with a Tab Control that has 18 pages. When I click on a tab it opens the page and select a textbox on that page (txtTextbox1. Select() ). This works for the first 8 pages but not for the remaining 10 pages. Although on these pages I can mouse click on the textbox, enter info, save then click my Add button that clears the textboxes and has the code (txtTextbox1. Select() ). The textbox is selected just fine. The code for all my pages is the same except for the tab name and the control names. The tab key will move the selection to the next textbox in order on all pages and the Enter key is coded to do the same. The first 8 pages have a total of 256 labels, buttons, list boxes, textboxes and checkboxes on them.
All my controls for getting data from user are in TableLayoutPanels and GroupBoxes inside TableLayoutPanel, I want to set default selected index of entire CoboBoxes to 0 in all TableLayoutPanelsand and GroupBoxes inside TableLayoutPanel. [code]...
I have a web project in asp.net in which i have dashboard on which there are dropdownlists with previous seven dates and when i select the date from dropdownlist it opens the file from folder matching with date selected.My dropdownlists are arranged vertically.A strange problem is that when i select the date from ist dropdownlist it opens the file fine and when i select the date date value from any other dropdownlist it opens the same file which opened from the ist dropdownlist all remaining dropdowlists behave same like.And other strange Problem is that when i start opening files from the last dropdownlist to ist.
how can i select all inputs of thisweek entry.in my database i have fromdate and todate fields, now how could i select if i'm in anyday of the week but i have select to display thisweek activities. it will display into the datagridview all the activity setted for this week...exam in Microsoft outlook there, Day or today, and work week and month button..if i select today or day it will deplay in the datagrid all activties for the day, and if i select work week it will display activities for the entire week.. and month also...i'm using visual studio 2005 and access 2003
I am also very new to visual basic, and need some simple advice from you guys. I basically have a button, text box and a .txt file.When the button is clicked, I need one of the entries in the .txt file (which are names) to be selected and displayed in the text box
I have a form ( call it NewForm ) that can be opened from many other forms, but I don't want to have the user to run into the problem of having many windows/forms open.I want to close the calling form and open NewForm.NewForm will prompt the user for information, but if the user doesn't find what they are looking for I want to have a "Cancel" button on the form. With the "Cancel" button I want to go to the previous form.is there a way to tell which form called NewForm so I can just reopen/unhide that form/window.
When I initialize a new form to open, the subroutine in the new form starts before the new form is shown on the screen and so when the subroutine finishes and the MsgBox comes up, the form isn't showing.
Is there a way to make the form pop up first before the subroutine starts?
I am using VS 2008, Windows XP R3, and Visual Basic.When I open some forms in the form designer, (In Solution Explorer, right click on the form, then select View Designer) the form always opens as Edited. An Asterisk "*" appears after the form name in the open window tabs. If I open the form to just view the code (In Solution Explorer, right click on the form, then select View Code), the form opens normally. This happens for just some forms.
It always happens for the same forms, and never happens for the other forms. What I am missing in those forms where the designer always thinks the form has been edited?
When opening a button and opening a new form as soon as it opens it close for some reason but its not giving any errors as to why its doing this now I've checked the linked linking it to the next form that's fine.
Private Sub PrintPerscription_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Login.con.Open() sql = "SELECT Patient.* FROM Patient where Patient.Wardno = " & Login.WardNo.ToString da = New OleDb.OleDbDataAdapter(sql, Login.con) noOfRows = da.Fill(dsPatient, "Patient") [Code] .....
I need to have 4 text boxes and three command buttons. One button should be used for exiting the program, one button should be used for clearing all of the text boxes, and the last button should be used for any calculations/conversions. You should also have a radio button group for the user to choose entry temperature type.
One text box should be used for the entry of an initial temperature. The radio button group will then allow the user to select the entry temperature. When the button is clicked for conversion, the other three text boxes will populate with answers to the conversion. and if I enter 37 degrees Fahrenheit, the Fahrenheit text box should read 37 after the conversion.)
I am new to these forums. I had a VB.net class several years ago and cant seem to find this info in the text from the book used in the class. Here is what I would like to do. I have a 2 forms. One with three buttons and the other with a listbox. When I click on one of the three buttons (on form1), I want to fill the listbox (on form 2) with one of three arrays. is this possible, it seems like it should be.
I have a form that opens a other form in multi threading but after that it wont close I have tried: application.exit (Works but closes the whole app) me.close (nothing happens) end (nothing happens) me.hide (nothing happens) This form is form1 that wont close and opens form3 I every other form works.(7 forms total)
I am creating a form and I have a label that will display the user's name, but what I need to do it trigger a text box when the application opens that will allow the user to type in their name and then assign that value to the label in my form. How do I trigger the text box and assign the value to my label? My label is named lblStudent.
I am creating a program that has many text boxes and labels on the form. I want to be able to edit fields close the program and open it up so that the form opens with the last editing I did in the fields.
I'm trying to set my software up so that when I check the checkbox for winRAR to be installed, it'll pop up a new window asking if I want to install the 32 bit version or the 64 bit version. I have no problem getting the window to show up but than if I try to exit out of the window and than uncheck the box (in case it was accidentally checked) it'll just open the window again. I am thinking I have to tell vb that when I uncheck the box it shouldn't do anything.
Here's my code. (I know that the Nothing under the Me.chk_rar.Checked = False doesn't work but I left that blank once and it just opened a bunch of windows and crashed my system. I know it says "E:Music" right now but I just pointed it there so that there was something there normally it'll point to the other window. If I need to created a new Form for every little window that I have for instance the little window that I want to pop up, do I need to create a new form just for that little window to ask which architecture is needed and than giving the options for 32 bit or 64 bit.
Private Sub chk_rar_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chk_rar.CheckedChanged Me.chk_rar.Checked = True Process.Start("E:Music") Me.chk_rar.Checked = False Nothing End Sub
I have two forms. The first one opens the second one after all fields are filled out successfully. The problem I am having is I want to close the first form when the second form is displayed, but every time I try using frmCustomer.Close() when the second page (Result) loads, it completely closes the entire application.What am I doing wrong? What is the correct way of doing this?
I am having trouble getting the Student Name entered in the Student Name Form to change the Text titles of the GroupBox's on the Main Form and Schedule Form. I understand the logic of what needs to be done to some extent, but I am having trouble coming up with the correct coding.
Below is a snippet of the Student Name Form code that I tried most recently just to see if I could get any change to happen to the other 2 Forms when the Accept Name button was clicked. As of yet, I cannot get a change to happen at all in the groupboxes of the other Forms.[code...]
I am trying to autoselect pre-programmed items in a listbox when a form opens with the control on it.but i cannot find a proper method to select all the items in the listbox and hold the resulting text as a string that will later be saved to a text file. i do not need help with saving the text to file but rather selecting the items in the listbox.so, after alot of trial and error and no luck I think I am supposed to use
ListBox.ObjectCollection
propriety. but i have no clue whats so ever in how to manage to select all the items in the listbox when this form opens...if this does not make sence then I will rephraze it.
I am trying to build a form that has a button on it that will open up a 2nd form that allows me to view and edit the connection string. I believe the connection string is also called app.config, and can see that in the Solution Explorer for the project.All I have managed to do is drag a button onto my main form and relabel it. I have no idea how to create code to access the connection string.
I created primary/start up Form for my VB2005 app (called Admin.vb). Now when I go back to the solution explorer, I can see Admin.vb but it doesn't have the form icon and clicking it doesn't open the form. Instead it opens the code.All of my other forms are fine and have the right icons and open in the [Design] view ...The form obviously still exists as it opens in runtime but I can't seem to open the design view for it.
I am having Socket server, and I have two forms. One is the main form for the server and the other one is a custom made messagebox. When a request comes to the server the main form has to invoke the second form (messagebox). When the main form is open for the first time everything works fine. But when I close the main form without closing the application and open it again and request comes to the server the custom made messagebox opens but it freezes and looks like this:
