Way To Synchronize Dragged Controls
Jan 26, 2010How can i synchronize dragged controls (in my application), so they maintain their relative position to each other? is there some API function or .net method that can do this?
View 5 RepliesHow can i synchronize dragged controls (in my application), so they maintain their relative position to each other? is there some API function or .net method that can do this?
View 5 Repliessynconize scrolling of two webbrowser controls in VB?
View 2 Repliesi am creating a text editor, I have a drag and drop feature. the dragged data come from the labels text. I want to get the dat from other source , in a variable. Because the content of my labels text are sentences, I want to show that in only one word.
Here is the code for my drag and drop
Dim rtb As RichTextBox
Private Sub Form6_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Label1.Text = "hello"
rtb = New RichTextBox With {.AllowDrop = True}
[code]....
I have created a list form that gets attached to a main form in VB.NET. This all works fine except that when the main form gets activated, I need the list to be brought to the front as well. I have put in a simple IF function to do this but when I added these lines of code, the main form, as well as the list form now do not get brought to the front until you let go of the mouse button. Obviously this means that if you drag the form, it stays at the back until you let go of the mouse button.
The code that I added is below:
If CRL.Visible = True Then
CRL.BringToFront()
End If
CRL is the list form.
If I comment out this code again, the main form get brought to the front while dragging but obviously the list form does not. The main form as well as the list form are MDI children.
I am creating a text editor in Visual Basic .Net 2005. I want to get the list of filenames dragged into the MDI form. I can't figure out the proper code to do that.
View 2 RepliesI�m having trouble with the picturbox control, my problem in its basic form is:I have a picture Box array consisting of 9 picture boxes each with a different image in loaded at run time these are names 0.jpg to 8.jpg I then have 2 more picture Boxes named ansOne and ansTwo. I have made it so you can drag the images of these numbers to either of these picture Boxes It this next part I�m having trouble with:
I then want to have thoughs images represent a sum so when a button is clicked it adds or multiplies thoughs images together but as numbers ("badly put I know ")I am very unshore of where to start. After the image has been dragged how would I know what image has been dragged and turn that in to its integer equilivent?I had thought of using split string or something similar to just get the number before the .jpg so tried picAnsOne.imageLocation but that throghs a null reference And that�s as far as I have got.
I am trying to drag drop an xml file onto a form and then read the file and extract valuesI have got a routine that accepts dropped files onto the form, but i only want files with the extension ".xml" to be accepted, is there a way to only accept certain types of file like a filter?And what is the function for manipulating a file once it has been dropped onto the form? I would like to read the file.here is the code i have that accepts a file onto the form and then i have a routine that i want to read the file from but i don't know where to start with this:
Private Sub picXML_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles picXML.DragDrop
'picXML.Image = the created FCOM table from
[code].....
I'm working on a music player (I'm a beginner), I've gotten the basics down but I've been stuck on something for the last few days.
I'm wanting to have a listbox that (only) music files can be dragged onto, once they are dragged onto it I want the listbox to add it as an item on that listbox. So basically, I'm wondering how to drag items onto listboxes, restrict that to only music files (specifically .wav & .mp3) and have that dragged item be added to the listbox.
PS. I'm making this media player myself, without WMP or DirectSound (I believe it's called).
[Code]....
synchronizing a combobox with a textfield. I have a form with a textfield and a combobox. The combobox is populated with the department name from the database when the form loads. I would like the textbox to display the corresponding department number when the user selects a department name from the combobox. I have tried using the SelectedIndexChanged event of the combobox but I can't seem to code it to work. This is the code I'm trying to use but it is displaying "DEPARTMENT" in the textbox. Department Code is the primary key of the table.
strSQL = "SELECT * FROM DEPARTMENT"
Dim da = New OracleDataAdapter(strSQL, cn)
da.Fill(dSet, "DEPARTMENT" )
[Code]....
I'm trying to get my application to restore the default values of my application settings but every time I click the Synchronize button it says:
No user.config files were found in any of the following locations.
I have never before tried to synchronize this application and am working with Visual Studio 2010. [URL].
I have a small application in ms access for student information. which is on my sever.now I have same application in .net and sql server which is online in my website, while access application is on my pc...Now I want that, If i make changes in my access application, the data must be copied to my online application automatically,Same thing i want vice versa,means if i make changes in my online application, the data must be copied to my desktop database.
View 1 RepliesPrivate Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If ListBox1.Text = "kg" And ListBox2.Text = "lbs" Then
[code]....
I have my client app installed in many computers, each computer is connected via LAN. Each Client app uses its own SQL database. I need to synchronize the databases in each computer so that every client app has the same data. How can I achieve this using VB.net (VS 2010 , Winforms)
View 1 RepliesI have two datagridview with same columns. When user resize the column of one of the datagridview during run time, then another datagridview column will synchronize to resize as well..
View 2 RepliesWith my program I wanted to change the fixed connection string to a User entered one. So in the application settings I added DBConnectionString as a user define String. If the string if empty, it shows the window where one can add the server, database and user name / password. If you press the OK button, it saves the settings:
Private Sub LDBOKBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LDBOKBtn.Click
' ----- Server name is required.
If (Trim(LDBServer.Text) = "") Then
MsgBox("The Server or Host name is required.", _
[code]....
The problem is that when you press the same button to show the System Settings again, the ConnectionString is empty again. So nothing was saved.
I have written a stupid backup utility that copies new or modified files. That's fantastic until I come across files that are 11 GB in size that have been modified. I have a feeling I can compare the file to be backed up and the file that will be over-written (old version of file) and "synchronize" the file instead of copying the entire 11 GB.
View 6 RepliesHow do you accept dragged text to a notifyicon control? I am aware that the notifyicon control supplied with .net does not have an AllowDrop property nor does it have dragenter or dragdrop events. I'm looking for a way to somehow do this without reinventing the control.
View 11 RepliesTrying to replicate the docking controls in Visual Studio 2008. My application replays the RADAR environment for the FAA and I want the ability for dual monitor users to drag the control panels to the other monotor to leave the main canvas clear. This functionality is similar to the way the different panels in VS can be dragged outside of the main window.
View 1 RepliesI'm currently making an application that involves time tables / scheduling. I'm required to generate a timetable for school teaching activities. in this application, I want to display the time slots using labels and I want to enable users to drag them around to place the subject cards in the available slots. I'm even confused with the control to use for the time slots. Right now I'm thinking of using datagridview for the time slot. So I'm trying to drag the labels around and placing them in the datagridview cells.
View 1 RepliesI have a web browser I'm using in my VB.net form to which I drag *.CTB files. At present I can drag any file type into the browser can I limit this to CTB file extensions only and if the user ties to drag in any other extension that a message box appears quoting that the file must be ctb extension?
View 1 RepliesI am trying to set up a listview where I can reorder the items, but no matter what I do the item i drag and drop goes to the end of the listview. I searched and tried to fix this issue but I just can't seem to find a fix.
[Code]....
Is it possible to get this information from a drag&drop Startup path of a external program that was dragged over my app? The process name of the external program that was dragged over my app? This is what I already got. Private Sub Main_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles Me.DragDrop
[Code]...
i clicked and dragged a picture into my form. How can I get it to be displayed in a picturebox?
View 1 RepliesI want to achieve the following:
The user drags text from any open window not related to my application ( like firefox or word, for example) onto button1 on form1 in my application. when he/she does that, a new form (called form2 that contains a richtextbox) will open and the dragged text is directly copied (or inserted) into the richtextbox of the new form. button1 has allowdrop set to true. Beyond that I don't know how to proceed.
I tried:
e.effects = DragDropEffects.Copy
But it seems it is not enough.
I have a class that contains a List(of T) used in a multithreaded application. I have three methods Get, Add and Remove where these access and modify the List(of T). I was using SyncLock to lock m_List any time I queried it for the desired object as well as when I added or removed objects. However I'm curious as to if there is a performance gain by simply locking m_List when I add an object or remove an object as opposed to when I'm searching for a desired object?
[Code]...
I've got an XML file which is a pain to manually update. So I was thinking of creating a small app which synchronizes this data for me based on data from an Excel Sheet or something.
The XML schema looks like this:
<Data>
<Level1 value="Canada">
</Level1>
<Level1 value="Chile">
[code]....
I sometimes come across patterns or common practices that I do not agree with. I have a clear opinon of what is considered "good design", which is mainly based on my understanding of abstraction and creating layers.IMO, the core of an application is it's object model. It's a hierarchic model where one object references other objects or lists of them. That's a memory-internal model. For example, a house object references a list of rooms referencing lists of furniture.An object is identified by it's reference. There are no IDs or PKs in that layer.Saving/Loading data is an additional feature. Sure, no application will do without, but it's based on top of the core of the application. I could write an application that works very well without loading/saving, and for version 2 I will think about whether to save data to a database or an XML file. Merely this fact proves that a database layer is not the lowest. I've never agreed with that three-tier model - even if you call me unteachable.
In addition to all application objects, there are Datasets - and that's my problem now. They can be considered as a copy of what is already present in the application's object model. Its from a different, table-oriented view. As both structures exist in parallel, there's the need to synchronize the DataSet with the (rest of the) application's objects.That's the task that I am always struggling with, and I ask how you handle it. I know this is a major design question but, fortunatelly, I could quite get around this problem so far.The only solution I can imagine is maintaining additional relation lists. For example, whenever the property of a room object changes, that change must be reflected in the associated DataRow in the DataSet. For this purpose, I need a look-up table that tells me the PK of the given room in the database. It requires a lot of additional efforst to do all the synchronization.Again, the house or room object itself does not have a PK and it won't get one because on that layer, it doesn't even know that a database exists.
I am using Mail.dll Commercial component. I can read the unseen or unread messages in my windows application. IF i open the mail using the [URL] then I cannot get the mail in windows application. Is there any way to synchronize the gmail mails
View 1 RepliesI need to run my program as admin because it accesses the registry on load. Well I wanted to implement a drag and drop feature but have come to find there is a access issue with running as admin and the dragenter event. Is there any known workarounds for this? I have searched all over the place.Just a side note I only need to get the file location from the item being dragged in...
View 3 Replieshow reliable is LastWriteTimeUtc to synchronize 2 folder on 2 different computers? what problems could rise using LastWriteTimeUtc.is there a better way to see if a generic file is of a newwer version?
View 7 Replies