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I want to develop a bar chart with the following requirements:
An activity is represented as a box / rectangle with different colors. The colours change according to the activity. The width of the box determines the duration of the activity and is linked to start date and end date in a database record. The order of the activities will be changed by dragging the boxes (in the same row) and the record should be updated automatically. There are many people who are assigned these activities, which are represented in different rows. I should also be able to drag the boxes from one row to another with an immediate update of database.
Could anyone help in telling me the best approach for this task? I am just an intermediate programmer. I hope that my requirement is understandable. Please help me... 
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I've tried so many different way's of doing this and I'm sure the solution is simple, I just need a push in the right direction!
Sorry that this post is so long but people usually misunderstand me on this topic.
All I want to do is to establish a client-server connection between two computers of which the one is behind a hardware firewall (A.K.A proxy server). The word PROXY in this case refers to a computer with two NIC's, one to the internet and one to the LAN. This proxy server has a whitelist of allowed sites, ports and protocols.
Eg. Any PC on the lan can connect to www.news24.com, because the website is whitelisted. In the same manner any PC on the LAN can send and receive emails. In the event where a client attempts to access a website not on the whitelist he is promted for a password that will grant the access.
I want users of my app to be able to specify wheter they use a proxy server or not and what the address of that server is. Let's assume the proxy server has been set up to allow communication on that specific port (i.e I'm not trying to trick, hack or bypass the firewall, the connection is legitimate)
A good example of this is MSN Live Messenger, see it's connection setup screen here[^]
My actual question is, how do I implement this proxy into my connection, do I need to connect to the proxy first and then somehow request it forward my connection?
PS. This is not a web-request (eg. http get/post request)
"you can't forget something you never knew..." M. Du Toit
"Watching Migthy Joe Young made me hate my life..................................I want a gorilla!" A. Havemann
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The proxy has to be configured (NOT from your code, but by your proxy server admin) to open a port to the public and forward it to your servers internal IP and port.
If it was so easy to get the proxy to open a hole from code, image what all these Trojan virus writers could do!
Your client would connect to the public IP and this opened port. The proxy then forwards this request to your server on its internal IP and port number.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Dave Kreskowiak wrote: If it was so easy to get the proxy to open a hole from code, image what all these Trojan virus writers could do!
I'm not exactly asking how to open a hole from code, I'm asking how to pass through the hole already opened for me on the firewall by our proxy server admin.
Where do I specify the address of the proxy server? In code? In Internet Explorer?...Will my app use those IE settings?.....But thats only for stuff like HTTP, FTP etc...
Do I connect directly to my end-point or do I need to establish a connection to the Proxy first?
"you can't forget something you never knew..." M. Du Toit
"Watching Migthy Joe Young made me hate my life..................................I want a gorilla!" A. Havemann
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How to add a MSHFLEX GRID in a form
It is not displayed in Tool box. Which DLL we have to add to get Reference for the MSHFLEXGRID.
THanks in Advance
Priya
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You could use the flexgrid, but what's stopping you from using the built-in .NET DataGrid or DataGridView instead?
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Generally in Connection string we will give the path as
Data source="D:\xyz.mdb"
In VB we will write the same code as
Data Source=" & App.Path & "\DC.mdb"
How to set the same datsource in VB.Net
Waiting for ur reply
Thanks in advance
Priya
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Environment.CurrentDirectory
However, be aware that this can be changed during run time.
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How many times are you going to ask the same question??
The VB.NET equiv is:
Dim dataSource As String = Path.Combine(Application.StartupPath, "DC.MDB")
This is the first time I'm going to disagree with Colin. I don't like using CurrentDirectory because its a path that can change during the exeuction of your code. Just ask anyone who has ever used the OpenFile and SaveFile Dialog boxes incorrectly...
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Hi friends i couldnot find any tools for creating frames in vb.net..please give me your valuable suggestion...
jeyan
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what do you mean with frames? A rectangle, A panel object? If you be specific, I will help you.
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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Okay here is the method how to set background color for selected cells in a datagridview control.
DataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect
Dim I As Int32 = 0
For I = 1 To DataGridView1.SelectedCells.Count
DataGridView1.SelectedCells(I).DataGridView.BackgroundColor = Color.Aqua
Next
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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Hello,
[2005]
I have a datagrid that is bound to a typed dataset. I have a combo box that is bound to the same typed dataset.
The user will select from the combo a category the bindingsource will filter only the categories that the user wants displayed in the datagrid.
However, i have button called reset, which should display everything back into the dataset. However, it doesn't do this. I have checked to see how many record are contained in the dataset after the reset button is clicked during the debugger and the number of rows is correct.
The dataset are filled during the form load and when the user clicks the reset button
I know that everytime the dataset gets filled, it is cleared and filled automatically, so I don't understand why this would happen. My code is below. Thanks for any advice on this code.
'Load categories into equipment category combo box<br />
Private Sub LoadCategories()<br />
Try<br />
Me.cboCategory.DataSource = Me.DsAddComponetAndEquipment1.SoftwareCategory<br />
Me.cboCategory.DisplayMember = "Category"<br />
Me.cboCategory.ValueMember = "CategoryID"<br />
Catch ex As Exception<br />
MessageBox.Show(ex.Message)<br />
End Try<br />
End Sub
'Load all the components into the grid<br />
Private Sub LoadAllSoftware()<br />
Try<br />
Me.TA_Software_dsComponent_Equipment1.Fill(Me.DsAddComponetAndEquipment1.Software)<br />
Me.dgvSoftware.DataSource = Me.DsAddComponetAndEquipment1.Software<br />
Catch ex As Exception<br />
MessageBox.Show(ex.Message)<br />
End Try<br />
End Sub
'Reload all software<br />
Private Sub btnReset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReset.Click<br />
Me.LoadAllSoftware()<br />
End Sub
'Display what the user has selected from the category of sofware<br />
Private Sub cboCategory_SelectionChangeCommitted(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboCategory.SelectionChangeCommitted<br />
Dim bsCategory As New BindingSource<br />
<br />
Try<br />
bsCategory.DataSource = Me.DsAddComponetAndEquipment1.Software<br />
bsCategory.Filter = String.Format("CategoryID = {0}", Me.cboCategory.SelectedValue)<br />
<br />
Me.dgvSoftware.DataSource = bsCategory<br />
<br />
Catch ex As Exception<br />
MessageBox.Show(ex.Message)<br />
End Try<br />
End Sub
Thanks very much for your time,
Steve
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Hi Steve,
First thing that comes to mind with your code (although it hasn't got anything to do with the problem) is that you really don't have to use me. everywhere, and MessageBox.Show doesn't need .Show.
As for the actual problem though:
steve_rm wrote: 'Load all the components into the grid
Private Sub LoadAllSoftware()
Try
Me.TA_Software_dsComponent_Equipment1.Fill(Me.DsAddComponetAndEquipment1.Software)
Me.dgvSoftware.DataSource = Me.DsAddComponetAndEquipment1.Software
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
You could try:
<br />
dgvSoftware.DataSource = DsAddComponetAndEquipment1<br />
dgvSoftware.DataMember = "Software"<br />
or alternatively you could try:
<br />
dgvSoftware.SetDataBinding(DsAddComponetAndEquipment1, "Software")<br />
steve_rm wrote: [2005]
I take it that you mean that you are using .NET 2005? Unfortunately my boss doesn't want to invest in the upgrade yet, so I am still looking at it from the .NET 2003 point of view. Therefore it is ofcourse possible that my code doesn't apply for your environment anymore, but otherwise, are you sure that .fill actually empties the dataset first before filling it again? For me that doesn't work, I still need to call DataSet1.clear() first.
Now if binding works when your form is loaded, than maybe you should think of doing the .fill thing only once (at the beginning), copy the whole dataset into a temporary dataset, and just copy the temporary ds back to your main ds when the user presses the reset button.
The active data binding should take care of the rest.
Hope this is of use to you,
Johan
My advice is free, and you may get what you paid for.
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Thanks for your reply and advice.
Steve
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I'm using this
rtbText.SaveFile(currentFile, Word.WdSaveFormat.wdFormatDocument)
it saves it ok but when I try to open it in word it ask if it can install a converter I click No then the document is shown but now whan I click save it ask tells me that it will save it as a text document.
All I want to do is save the text in the .doc format, why is it proving so difficult?
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Anybloodyid wrote: All I want to do is save the text in the .doc format, why is it proving so difficult?
Because the RichTextBox can't save anything in Word's .doc format! The RTB doesn't know anything about it. All it can do is save as straight text or RichTextFormat, or RTF.
Word can load either type of document, but it'll ask you which format you want to resave it in when you go to do so.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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So basically there are three options open word, save doc, close word.
Open word, save as RTF.
Don't bother with word.
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Yep.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Well, it's done, I can finally save a word document from my application 
And then open it in word as a word.doc.
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Actually, you saved an RTF file with a .doc file extension. It's not really a Word document. It's just in a format (RTF) that Word happens to know how to load and interpret.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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So, what you're saying is that when I write a document in MS word and do a SaveAs and choose.Doc, it actually saves it as an Rtf and sticks on a .Doc extension.
What's the point of that?
I might as well save in another format called .Mxt (My Extension)
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I thought you were saving this out of a RichTextBox. In that case, an RTB only knows two formats: Text and RTF.
If you're saving out of Word, it'll save in its own proprietary format, with the .doc extension, RTF, Formatted and Unformatted Text, HTML, and a few others.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Yes that's it, I copy to clipboard, open word, paste and save, but I now do it without having the SaveAs dialog from word opening.
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