Class property isn't working in custom controls - C# Discussion Boards

tyrone0109 wrote:
by using only 1 program develop by c#.

You know what you were doing, right? Control the pc via only ONE app? This is totally a awesome hack app. Smile | :)

I Love KongFu~

Hi, all.

I study C# programming about list view control.
and I would like to show file icons on the list view control, when I drag & drop some files.
I could show file paths on list view control though. but I can't show file icons.

 string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);<br />
            foreach (string file in files)<br />
            {             <br />
                Icon ico = Icon.ExtractAssociatedIcon(@file);<br />
                Image img = ico.ToBitmap();<br />
<br />
                ListViewItem lvi = new ListViewItem();<br />
                lvi.Text = "";<br />
                lvi.ImageList.Images.Add(img);<br />

// this line has an error.
// I would like to show file icons on this list view control , when I drag & drop some files.
// I can show file paths when I drag & drop on the control though.

   listView1.Items.Add(file);<br />
                       <br />
}<br />

Thanks.

Whats the error ?

Icon.ExtractAssociatedIcon(@file);

Remove @

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

Originally, I did that way.

even though I removed @, an error occured.

like this:
First exception of 'System.NullReferenceException' format is occured from StackDocklet.exe.

Perhaps the ImageList is null? The times that I've used file icons in a ListView, I added the images to the ImageList, then set the image index of a ListViewItem accordingly. Of course, you need to set the ListView.ImageList property to the aforementioned ImageList

that mean 'StackDocklet.exe' do not have any icon...

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

lsh486love wrote:
lvi.ImageList.Images.Add(img);

the ImageList value is null.

You can try this:

string s= "1.txt";
Icon i = Icon.ExtractAssociatedIcon( s );

ImageList imageList = new ImageList();
imageList.Images.Add(i);

this.listView1.SmallImageList = imageList;
this.listView1.Items.Add(new ListViewItem(s, 0));

Hope this will help you~

I Love KongFu~

This thing is irritating me since morning...well, I inherit PictureBox in a class and add property of another class something like this

public class PBC : PictureBox
{
    Testing Testing1;
    public PBC()
    {
        Testing1 = new Testing(this);
    }
    public Testing Testing
    {
        get { return Testing1; }
        set { Testing1 = value; }
    }
}
[TypeConverter(typeof(ProperyConverter))]
public class Testing
{
    Control Control = null;
    string textHolder = "";
    public Testing(Control control)
    {
        Control = control;
    }
    public bool IsInitiated
    {
        get { return Control != null; }
    }
    public string TextHolder
    {
        get { return textHolder; }
        set { textHolder = value; }
    }
}

all looks good but when I set the 'TextHolder' property in Design Mode it works but when run all gone...so to find the problem out I set the TextHolder and open the form's Designer.cs and found nothing about Testing and TextHolder. Then after some test I got to know its happening because of 'public Testing(Control control)' constructor...then I added new one

public Testing()
{ }

and when I set the TextHolder property and I saw something in Designer.cs.
VS created an instance of Testing class, set its property 'TextHolder' and then set that instance to the control.

Testing testing1 = new Testing();
testing1.TextHolder = "fgvhh";
this.pbc1.Testing = testing1;

One thing I do not understand...why VS making this is so complicated. It can be simple like this

this.pbc1.Testing.TextHolder = "A Test String";

any idea guys ?

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

Just had a quick look, and this sort of hit me straight:
[TypeConverter(typeof(PropertyConverter))]

Another thing, i wouldn't use the word "Testing" as a public proerty name of type Testing Wink | ;)

I know it looks nice and stuff but it confused me already Wink | ;)

var question = (_2b || !(_2b));

Greg Chelstowski wrote:
[TypeConverter(typeof(PropertyConverter))]

it doesnt matter, just a typo

Greg Chelstowski wrote:
Another thing, i wouldn't use the word "Testing" as a public proerty name of type Testing

it wont effect BTW...

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

Xmen wrote:
Greg Chelstowski wrote:
[TypeConverter(typeof(PropertyConverter))]
it doesnt matter, just a typo

Sorry dude, I thought you copy-pasted your code, that's all Wink | ;)

Xmen wrote:

it wont effect BTW...

I know it won't, I was only pointing out it's confusing...
;>

var question = (_2b || !(_2b));

how one encrypted video and another normal video are embedded please send me the code for me if anyone hae that.

hi... how can i change this doc....etc to get file infor of just Image file....JPEG etc ???/

private void ProcessOfficeDocument(string fileName) 
{ 
    DSOFile.OleDocumentPropertiesClass docDSO = new DSOFile.OleDocumentPropertiesClass(); 
    string docTitle = null; 
    string docModified = null; 
    string docAuthor = null; 
    string docKeywords = null; 
    try { 
        docDSO.Open(fileName, true); 
        DSOFile.SummaryProperties docSummary = docDSO.SummaryProperties; 
        docTitle = docSummary.Title; 
        docAuthor = docSummary.Author; 
        docKeywords = docSummary.Keywords; 
        docModified = (string)docSummary.DateLastSaved; 
        
        if ((!string.IsNullOrEmpty(docTitle))) { 
            _Title = docTitle; 
        } 
        
        if ((!string.IsNullOrEmpty(docAuthor))) { 
            _Author = docAuthor; 
        } 
        
        if ((!string.IsNullOrEmpty(docModified))) { 
            _DateModified = DateTime.Parse(docModified); 
        } 
    } 
    
    catch (Exception ex) { 
    } 
    //Do whatever you need to do here...' 
    finally { 
        if (((docDSO != null))) { 
            docDSO.Close(); 
        } 
    } 
}

A S E L A

Dear All,

I am trying to bind Data Grid in c sharp i am using code like

DataGrid.datasource = dataset.tables[0].toString();

But problem is if i try to bind it like

DataGrid.DataBind(); their is error DataBind()key word not come in intelisece

window and no data display in Data grid.

What should i do please do replay.

Sajjad

wowowo...its simple

DataGrid.datasource = dataset.tables[0]

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

thanks as i post message then i solved it in 1 mints.

ToString ? I suggest you buy a book on C# instead of making stuff up.

Christian Graus

Driven to the arms of OSX by Vista.

Thanks for suggestion first of all tell me why you send me this type of answer i was one confusion thats why i send it on codeProject not specially to you understood.

while an application is running, I was looking for a way I can list the objects instantiated by that application, only live once. any help?

You mean what's not yet been garbage collected ? I'm not sure if you can do that.

Christian Graus

Driven to the arms of OSX by Vista.

You can use the CLR Profiling API to do that - ICorProfilerCallback2[^]

Regards
Senthil [MVP - Visual C#]
_____________________________
My Home Page |My Blog | My Articles | My Flickr | WinMacro

I have a GridView with a auto-generated column containing the edit and delete operations in the first column of the GridView.

I would like to move this column to the most right of the GridView.

Can anyone shine some light with this?

Thanks.

this may help Wink | ;)

int columnIndex = 0; // Just imaginary values
int lastColumnIndex = 5; // Just imaginary values
DataControlField dcf = GridView1.Columns[columnIndex];
GridView1.Columns.RemoveAt(columnIndex);
GridView1.Columns.Insert(lastColumnIndex, dcf);

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

Hi,

If anyone has some sample programs/documents for WebDAV protocols implementation using C# then please give it to me.

Thanks in advance ...

Hi,

I wrote this small WebDAV client in C# as a library to use. It may be of any use to you: http://kvdb.net/projects/webdav