Re: Drag and drop databound treeview WPF - C# Discussion Boards

Drag and drop databound treeview WPF

10-Jun-07 0:02

Hi,
Any idea how to directly show child table when clicking on the bloody parent collapse button in a datagrid control?? Do we always have to see the bloody relationship name link and click on it to open the child?? Can we hide the bloody toolstrip from the top of the child table?? Is there any other way to view datagrid table in more friendly way, say, have more than one child open simultaneously.. Is the bloody datagrid control that bloody??

Thanks for reading my bloody post;)

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WillemM9-Jun-07 23:54

9-Jun-07 23:54

Yesterday I had a great experience designing an application in WPF. It's really cool to see how easy it was to create a databound treeview. However, I want to drag nodes within the treeview.

So far I did the following:

- Implement a mousemove eventhandler that initiates the drag operation
- Implement a dragover eventhandler to check if a dragged item can be dropped
- Implement a drop eventhandler that moves the item.

However the last eventhandler proves to be problematic. Although I have the correct data, I can't seem to grab the treeviewitem that th mouse is currently over. Anybody knows how I can get this?

WM.

What about weapons of mass-construction?
"What? Its an Apple MacBook Pro. They are sexy!" - Paul Watson

Muammar©10-Jun-07 0:06

10-Jun-07 0:06

Try searching through articles, I remember running across a good one dealing more or less with your issue just this week but sorry I cant remember the title not the author.

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WillemM10-Jun-07 0:09

10-Jun-07 0:09

Found an article explaining a dragdropmanager for a listview: http://www.codeproject.com/WPF/ListViewDragDropManager.asp[^]

Going to read that and see if it fits my application as well.

WM.

What about weapons of mass-construction?
"What? Its an Apple MacBook Pro. They are sexy!" - Paul Watson

Muammar©10-Jun-07 0:19

10-Jun-07 0:19

Thanks Willem, I've been through that one as well, it's also good..
I found the one I just told you about. You may wanna take a look at it as well.

Cheers,

Smile: A curve that can set a lot of things straight!
(\ /)
(O.o)
(><)

WillemM10-Jun-07 1:07

10-Jun-07 1:07

Unfortunatly that one is for Windows Forms, however I did manage to get a bit further with detecting the item that the source item is being dragged on. Now to fix the last bugs, because now it seems as if the MouseMove event is no longer fired if you iniated a drag operation.

WM.

What about weapons of mass-construction?
"What? Its an Apple MacBook Pro. They are sexy!" - Paul Watson

Muammar©10-Jun-07 1:16

10-Jun-07 1:16

Good, I think I'll be into WPF or WTF;P soon.. No seriously, I'm interested, it sounds quite sexy Roll eyes | :rolleyes:

Smile: A curve that can set a lot of things straight!
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(><)

WillemM10-Jun-07 1:22

datagridview windows application hyberlink

10-Jun-07 1:22

As it turned out the solution was moderatly simple.
I had to do the following in the drop eventhandler:

Task t = (Task)e.Data.GetData(typeof(Task));
            
_currentMousePosition = MouseUtilities.GetMousePosition(taskTree);
HitTestResult result = VisualTreeHelper.HitTest(taskTree, _currentMousePosition);

if (result.VisualHit is FrameworkElement)
{
	_targetTask = (result.VisualHit as
	FrameworkElement).DataContext as Task;

}

After that it's just removing the task from the original parent and add it to the new parent. Pretty easy Big Grin | :-D

Too bad the mouse handling in WPF sucks, because I had to rely on Josh Smith's MouseUtilities class to get the actual mouse position relative to the treeview. Maybe I will build a dragdropmanager for the treeview similar to the one Josh created. It makes life a lot easier.

WM.

What about weapons of mass-construction?
"What? Its an Apple MacBook Pro. They are sexy!" - Paul Watson

Mohammad Daba'an9-Jun-07 19:00

Mohammad Daba'an

9-Jun-07 19:00

hi, am developing windows application, I put datagridview on one of its windows forms, i want to know the way of adding hyperlinks column that will enable be to move to another windows form when i click on it

Thanks alot
Hamody

Don't Cross Post

Sathesh Sakthivel9-Jun-07 19:04

Sathesh Sakthivel

9-Jun-07 19:04

Don't cross post the Same question in different foru.

I have seen CG has answered you in Asp.Net.

Regards,

Satips. Rose | [Rose]

Re: Don't Cross Post

Mohammad Daba'an9-Jun-07 20:59

Mohammad Daba'an

9-Jun-07 20:59

no no i need a code sample cause i searched and didnt get anything, he didnt give me a sample, so please f u know, give me a sample

Thanks alot
Hamody

Re: datagridview windows application hyberlink

Muammar©9-Jun-07 23:43

9-Jun-07 23:43

Try this article

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Drop path

Sergio Paque9-Jun-07 15:10

Sergio Paque

9-Jun-07 15:10

Hi, I want to drag and drop items from a listview to windows explorer, is there a way of knowing the path of the directory where the items has been dropped?
Thanks in advance.;)

Re: Drop path

Muammar©10-Jun-07 0:12

Nested table in datagrid??

10-Jun-07 0:12

string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
foreach (string file in files)
{
    try
    {
    if (!listBox1.Items.Contains(file))
    listBox1.Items.Add(file);
    listBox1.SelectedIndex = listBox1.Items.Count - 1;
    }
    catch (Exception ex)
    {
        MessageBox.Show("Cannot find "+file, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
}

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Re: Drop path

Sergio Paque10-Jun-07 0:26

Sergio Paque

10-Jun-07 0:26

Thanks for your answer, but what I want to know is the path of the windows explorer directory where the items were dropped.

Windows Send To Max

smarttom999-Jun-07 12:52

smarttom99

9-Jun-07 12:52

I'm writing a program that is a shortcut in the windows sendto directory. When the user sends too many files the program won't even load so I can't even warn the user of the problem. I think it's based on the size of the full path of each file. Does anyone know a way around this? Thanks a million.

report

SVb.net9-Jun-07 11:29

SVb.net

9-Jun-07 11:29

hi , please how i can add paramters to report by C#
i'm using this classes

CrystalDecisions.CrystalReports.Engine.ReportDocument _Rpt = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
string _path= Application.StartupPath + @"\CrystalReport1.rpt";
this.Text =_path;
_Rpt.Load(_path);
here i want add filter to this report ???????

123

9-Jun-07 9:43

You know.. collapse button on the row header on which you click to view the child table.. I'm going nuts but just cant get it Mad | :mad:

Please HEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEELP!! Dead | X|

Smile: A curve that can set a lot of things straight!
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Solved

9-Jun-07 23:39

Ok, I did it..

<pre><code>
oraCONNECTION = new OracleConnection(@"Data Source=orcl;Persist Security Info=True;User ID=DLDSP;Password=DLDSP;Unicode=True");
oraADAPTER = new OracleDataAdapter();

DSet.Clear();

oraADAPTER.SelectCommand = new OracleCommand("SELECT * FROM INS_STRUCT", oraCONNECTION);
oraADAPTER.Fill(DSet, "INS_STRUCT");
oraADAPTER.SelectCommand = new OracleCommand("SELECT * FROM VILS", oraCONNECTION);
oraADAPTER.Fill(DSet, "VILS");

DataColumn PK = DSet.Tables["INS_STRUCT"].Columns["ID"];
DataColumn FK = DSet.Tables["VILS"].Columns["UZLA_ID"];

DataRelation Rel = new DataRelation("VILS",PK, FK);
Rel.Nested = true;
DSet.Relations.Add(Rel);

dataGrid1.DataSource = DSet.Tables[0];
FormatGrid(dataGrid1); //Not listed here.
</code></pre>

Smile: A curve that can set a lot of things straight!
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[Message Deleted]

jabbasabba9-Jun-07 8:04

jabbasabba

9-Jun-07 8:04

[Message Deleted]

Re: atSMS and C#

jabbasabba10-Jun-07 1:02

jabbasabba

10-Jun-07 1:02

Anyone who knows howto rewrite this event in C#?

Re: atSMS and C#