|
Your second form needs a reference to the first form. When you have a reference to the Form object, you can call any of the Form's methods, such as Close.
I usually pass a Form reference to another Form object by exposing a property such as ParentForm, or sometimes I pass it via the Forms constructor. A lot depends on circumstances and how I want to use the second Form object.
Michael
CP Blog [^] Development Blog [^]
|
|
|
|
|
I want to start a new application in using vb.net 2.0 and I would like to be able to deploy this application with it's own integrated database. Could someone point me in a direction on how to do this.
Thanks
H.Wolfe
|
|
|
|
|
What do you mean by "integrated"? You can use any database for this, be it SQL Express, MSDE, Access, XML files...
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
I know what you are saying, i am doing the same thing. The best thing to use is MSDE. it is microsofts smaller free version of SQL. It has a 2GB limit but that is ideal for database apps unless it is something really big.
|
|
|
|
|
Hi to all! I am doing a project of AutoDialer. I have done coding in VB6. Its is ringing the phone. But what I want is, When the reciever picks up the phone, an audio message must be played. The audio message must be prerecorded. Can any body help please, I am using AT comands for ringing the phone.
|
|
|
|
|
This is only possible if you have a Telephony-capable modem. You can't use a normal modem to do this.
Beyond that, you'll have to search for examples of VB6 TAPI applications[^].
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
How do I run a SQL stored procedure from within Visual Basic?
Thank you.
|
|
|
|
|
|
the very simple method is use the procedure as you use the select query
cmd.CommandType = "ProcedureName p1,p2,p3"
' Either
cmd.executenonquery
'or if you want to recieve some thing
da.SelectCommand = cmd
da.Fill(Dt)
where cmd= Command
da= dataadapter
dt=datatable
p1,p2,p3 are the parameters which you need to send
hope this will help
|
|
|
|
|
|
hi i am a student working on my final year project i hav dissabled print option from the file menu using a com addin but when i press ctrl + P the print option comes up again. some one help me
and i want only my addin to work in word i want to dissable all other addins can some one guide me
chandrashekar
|
|
|
|
|
Maybe Dave can double check me but if you assign the key sequence to something else like form1.focus then it might bypass the print function.
1. Out of clutter, find simplicity.
2. From discord, find harmony.
3. In the middle of difficulty lies opportunity.
Albert Einstein
three rules of work
|
|
|
|
|
Sorry, I don't do Office automation.
But, it doesn't sound like the right idea.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
hello, is there anyone know how to auto-fill a textbox?
I have 4 textbox, first_name, middle_name, last_name, and full_name, I want the full_name textbox to be auto-filled when the first_name, middle_name, and last_name entered, so user doesn't need to fill in the full_name textbox. any idea to do this?
thanks.
Lisa
|
|
|
|
|
Handle the TextChanged events of the 3 text boxes, you could even do this with a single function. Combine the contents of the 3 text boxes and place the result in the FullName textbox.
Private Sub NameTextBoxesChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FirstName.TextChanged, MiddleName.TextChanged, LastName.TextChanged
FullName.Text = LastName.Text & ", " & FirstName.Text & " " & MiddleName.Text
End Sub
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
In VB.Net this should work (code is untested):
<br />
Private Sub Textbox_TextChanged(Sender as Object, e as EventArgs) Handles first_name.TextChanged, middle_name.TextChanged, last_name.TextChanged<br />
<br />
full_name.Text = first_name.Text & " " & middle_name.Text & " " & last_name.Text<br />
<br />
End Sub<br />
|
|
|
|
|
Ummm... and this is different from what I posted, how?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
:-OSomehow I missed your post. Sorry about that.
|
|
|
|
|
I've been trying to attach a SQlReader and SQLCommand to the same SQLConnection and i am getting the error that SqlConnection is already open.
I think that we can attach only one object to the connection at a time, correct me if i am wrong.
|
|
|
|
|
Nope, you're right. You can only attach one object to the connection at a time. But there is nothing stopping you from creating a second connection to the same database and using that with your other object.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
But then is'nt it utilising extra resources. What is connection pooling for then? I don't understand why we can only attach one object with a connection. Then it means that if i have to query the same table again using a different object(SQLReader) then for that i have to open a new connection, despite of the fact that a connection is already open on that database, putting extra load on sql server(it dosen't sound much of an issue when we are using in a simple data application, but it is a big issue with a erp model based application).
I am using vb 2005 beta. don't u think that in the next version they should allow multiple objects on sqlconnection or am i wrong?
|
|
|
|
|
Connection pooling is for recycling connection objects very rapdily. For example, when hundreds or thousands of users are hitting your data-driven web page, the connection objects are constantly being recycled in the pool, each making a single call to the database.
I don't know the reason behind why you can only attach one reader to a connection, maybe it's because of something to do with server-side cursors, who knows. But, best practice, unless absolutely necessary, is to open a connection, use it for whatever query you need, then close it and detroy the objects. This applies even if you have to open a new connection for a second simultaneous query.
You're really not putting that much of an extra load on the server. Going back to the website example, if connection pooling can open and close connections at a rate of thousands per second, how much of a load are you really puting on the server by opening a second connection in your application?
But, leaving a connection open DOES consume resources on the server. How many users are going to be hitting the database all at once? How much RAM is in the SQL server? How many connection licenses does your server have? Starting to get the picture?
And no, I don't think they should implement this feature to allow multiple command objects access to the same connection object. I think it'll promote bad practices, like people opening a global connection for the life of an application, which is a very bad idea!
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
|
|
Hi,
How can you close a form form within another one.
|
|
|
|
|
You can only do this if the current form has a reference to the form you want to close. If that's the case, all you have to do is call its Close() method.
What exactly are you trying to do with this?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
