DataGridView and Generics - Windows Forms Discussion Boards

Mr. Candyman7-Nov-07 8:41

7-Nov-07 8:41

Anyone can point me to some Windows Form Free DataGrid-like control that can support Master / Detail View (a hirarchical sub-rows view, that is), if there is any? I've been searching google but couldn't find anything free :P.
Thanks.

Re: Mater / Detail Datagridview

led mike7-Nov-07 8:46

led mike

7-Nov-07 8:46

Mr. Candyman wrote:
I've been searching google

Interesting[^]

Re: Mater / Detail Datagridview

Mr. Candyman7-Nov-07 9:40

Mr. Candyman

7-Nov-07 9:40

Thank you, but I was looking for a control to use in a Windows Application, and all I can see is for web app.

Re: Mater / Detail Datagridview

led mike7-Nov-07 10:41

led mike

7-Nov-07 10:41

Mr. Candyman wrote:
but I was looking for a control to use in a Windows Application

Interesting[^]

Re: Mater / Detail Datagridview

Mr. Candyman7-Nov-07 11:28

Mr. Candyman

7-Nov-07 11:28

Thanks, but again I could'nt find anything useful. What I really need (if possible) is a control like the asp.net details-view (one single datagridview) but for a windows form and free. Some examples where interesting but mostly used 2 datagridviews, and I can do that myself Wink | ;)

expanding label control

abdelhameed817-Nov-07 0:37

abdelhameed81

7-Nov-07 0:37

i am creating a customized messageBox to add the images and the icons that i need. I have a little problem is that the message and the lable that will hold it.

I need to make the lable to expand vertically as much as the text is, but not horizontally, how?

thanks for your help

abdelhameed81

Re: expanding label control

Christian Graus7-Nov-07 9:43

Christian Graus

7-Nov-07 9:43

If you set the height of the control, I'd imagine it wouldn't get any higher.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

DataGridView and Generics

Ponzano Paolo5-Nov-07 23:44

Ponzano Paolo

5-Nov-07 23:44

Hello to everybody,
I've got a problem with datagridview and generics, here's the piece of code :

<br />
  dataGridView1.ReadOnly = false;<br />
      List<Product> myProds = new List<Product>();<br />
<br />
      myProds.Add(new Product("Prod 1", 1, 1));<br />
      myProds.Add(new Product("Prod 2", 2, 2));<br />
      myProds.Add(new Product("Prod 3", 3, 3));<br />
    <br />
      dataGridView1.DataSource = myProds;<br />
      <br />
      myProds.Add(new Product("Prod 99", 99, 99));<br />

on video I've 3 rows but in the datagrid.datasource I've 4 items.
Where do I do wrong?

Thanks in advance

Paolo Ponzano

Re: DataGridView and Generics

Christian Graus5-Nov-07 23:53

Christian Graus

5-Nov-07 23:53

As this is windows forms, there's no databind command, the grid is bound at the point that you set the data source. So, the objects you add after, are there, but the grid does not rebind every time you add an item.

Re: DataGridView and Generics

Ponzano Paolo6-Nov-07 0:29

Ponzano Paolo

6-Nov-07 0:29

so what should I do?
Thanks

Paolo

Re: DataGridView and Generics

Pete O'Hanlon6-Nov-07 1:11

Pete O'Hanlon

6-Nov-07 1:11

Reset the datasource after you have added the new items.

Deja View - the feeling that you've seen this post before.

Re: DataGridView and Generics

Ponzano Paolo6-Nov-07 1:13

Ponzano Paolo

6-Nov-07 1:13

First of all, thanks to all of you for your answe, I've resolved it using BindingList<t> instead of List<t>, now I've a problem of cross-threading but I'm gonna take care of it!

Thanks again

Paolo

Re: DataGridView and Generics

Ponzano Paolo6-Nov-07 1:34

Ponzano Paolo

6-Nov-07 1:34

ok, now that the problem has been fixed we've another one that came out, and for this I need your help at all!!!

This is the main form event :

  private void Form1_Load(object sender, EventArgs e)<br />
    {<br />
      myWorker = new Worker();<br />
      dataGridView1.ReadOnly = false;<br />
<br />
      dataGridView1.DataSource = myWorker.myList;<br />
<br />
      Thread myThread = new Thread(new ThreadStart(myWorker.DoWork));<br />
<br />
      myThread.Start();<br />
    }

The Worker class is this one :

  public class Worker<br />
  {<br />
    public BindingList<Product> myList = new BindingList<Product>();<br />
<br />
    public void DoWork()<br />
    {<br />
      Random r = new Random();<br />
      for(int i=0; i<1000; i++)<br />
      {<br />
        myList.Add(new Product("Test",r.Next(),r.Next()));<br />
        Thread.Sleep(1000);<br />
      }<br />
    }<br />
  }<br />

At the myList.Add(...) I get an exception of type "Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on."

But this happen in a Business Object not in a Window's Control. I suppose this's because of the datagridview.Datasource property set, but how can I fix it?

Thanks in advance,
Bests

C# Soap and HTTP

AssemblySoft5-Nov-07 6:16

AssemblySoft

5-Nov-07 6:16

am writing an app that uses the .Net classes TCPClient and NetworkStream to read and write data between 2 machines. All works fine.

I have recently found a need to be able to send Http 1.1 with a SOAP message as the Http body. Currently i am using an XmlDocument to load and parse the SOAP data. However to do this i first have to read in the HTTP header, search for the beginning of the body and construct my own XmlDocument.

There must be a better way. I don't want to call a web service, i just want to send http with a soap body and receive the same.

I am looking for a means of loading in the NetworkStream into some kind of HTTP object to read the http stuff and also load the body into some simple Soap object that can be used to pull out/ set values.

Comments, Suggestions Welcomed.

Carl

cross-post

Luc Pattyn5-Nov-07 6:40

Luc Pattyn

5-Nov-07 6:40

Re: cross-post

Paul Conrad6-Nov-07 16:00

Paul Conrad

6-Nov-07 16:00

That bad, huh?

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

List View

Roberto Pereira3-Nov-07 10:38

Roberto Pereira

3-Nov-07 10:38

Hi,

I have one application that have one Mdi Form, and i would like to list all my open forms in a List View control.

Thanks.

Roberto

Re: List View

Paul Conrad3-Nov-07 12:53

Paul Conrad

3-Nov-07 12:53

You will have to iterate through all of the form objects and if they are open, add them into the listbox.

Something like this:

foreach(Form childForm in MdiChildren) listBox1.Items.Add(childForm.Text);

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Re: List View

Roberto Pereira5-Nov-07 8:31

Roberto Pereira

5-Nov-07 8:31

Hi,

It didn't work, but i think it would be something like that.

I'm gonna try more ways.

Thanks.

Re: List View

Paul Conrad6-Nov-07 16:00

Paul Conrad

6-Nov-07 16:00

It should be something in that nature...My code was just a rough one, and it worked for me.

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Combobox in DatagridView

metbinu2003@yahoo.com2-Nov-07 21:36

metbinu2003@yahoo.com

2-Nov-07 21:36

Hi,

I have a Datagrid with Product details (productcode, ProductName, and Color). I have to make the color column as a combobox, that the user can select the color from the list. The problem I am facing is, I don't need all colors to the combobox, I need colors available for that particular product only. (ie combobox list should be dynamic as per the indivitual Item or individual row). Please Help mE, its Urgent.....

with regard s
Binu Varghese
Thanks in Advance..........

dataGridview Cell string as an input text

basi00142-Nov-07 4:40

basi0014

2-Nov-07 4:40

I have a button that launches a URL based on a text string provided to it.

I want that text to be linked to the column 6 of the row selected in my DataGridView. Basically, i want to know how can i use the current index of row and column.

Historically i have been using the text in a text box using the following syntax

private void toolStripLabelbutton1_Click(object sender, EventArgs e)<br />
{<br />
    CommonFuncs.OpenURLSource(<br />
        LinkGenerator.button1Source(this.textBox.Text));<br />
}

Any help is appreciated.

Re: dataGridview Cell string as an input text

Giorgi Dalakishvili2-Nov-07 6:54

Giorgi Dalakishvili

2-Nov-07 6:54

If you want to retrieve text of the cell at row i and at column j then you can use this:

datagridview1[j,i].Value

where datagridview1 is the name of the datagridview. Note that the returned Value property returns object so you will need to convert it to string

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Re: dataGridview Cell string as an input text

basi00145-Nov-07 6:31

basi0014

5-Nov-07 6:31

What if, for row i in the datagridview1[j,i], I want row to be the row row selected or clicked?

ColorEditor in ComboBox

Brady Kelly2-Nov-07 2:49

Brady Kelly

2-Nov-07 2:49

I may be asking prematurely, without first doing the necessary homework, but I need to ask before I leave work, so I can really get stuck into the homework. I would like to present the same arrangement for colour options that Visual Studio uses in its Fonts and Colors options dialogue. I have some good resources on how to use ColorEditor, in a PropertyGrid and even externally, on its on a form. I'm just not sure if the material covers the actual color display used in the dropdowns.

I gather ColorEditor overrides a DropDown event, displaying the ColorEditor panel when the user clicks a drop down, but in PropertyGrid when not dropped down, only the colour name is displayed. I want one of those fancy dropdowns that shows the selected colour in the texbox area of the dropdown.

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