Re: Help with Code conversion - C# Discussion Boards

James Gupta26-Jan-06 10:23

26-Jan-06 10:23

The error says that you are using a type as an instance (ie trying to assign values to a CLASS not an INSTANCE of it). Basically, just change the "=" in the if loops to a "=="

This may have been a simple typing mistake (happens to me all the time lol) but just in case:

"=" is the assignment operator, it assigns the value at the right hand side to that on the left.

"==" is a logical operator which tests if the two values are equal (ie if(MyAge == FilmAge))

Hope that helps

Re: Help with Code conversion

TMF32026-Jan-06 10:29

TMF320

26-Jan-06 10:29

James,

To be honest it was no typing error (just inexperience). I appreciate your additional explaination. It helps me to learn.

UNfortunately though, I am still getting the error. Could there be another reason for this occurance?

Thank you again for your time.

Tim

Re: Help with Code conversion

TMF32026-Jan-06 11:24

TMF320

26-Jan-06 11:24

James,

What I was able to discover was that if I followed intellisense and used Item instead of LinkItem I was able to get by the error:

if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem))

This however, produced another error which I haven't been able to get by:

Cannot implicitly convert type 'object' to 'System.Data.DataRowView'. An explicit conversion exists (are you missing a cast?)

This is referencing line:
DataRowView oDrv = e.Item.DataItem;

From the following code:

<br />
<small><br />
public void Customers1_ItemDataBound(Object sender, RepeaterItemEventArgs e) <br />
    {<br />
        if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem)) <br />
        {<br />
            //This is to look for the Customer2.Repeater that is nested inside the Customer1.Repeater.<br />
            Repeater oRPT = (Repeater)e.Item.FindControl("Customer2");<br />
            DataRowView oDrv = e.Item.DataItem;<br />
            //This line is to retrieve only the records in the CTPT table that have the same ItemID as the HSCTI record in the current row.<br />
            oRPT.DataSource = oDrv.CreateChildView("ItemID");<br />
            oRPT.DataBind();<br />
        }<br />
    }<br />
<br />
    //Show all related Comments on the Customers2 Repeater.<br />
    public void Customers2_ItemDataBound(Object sender, RepeaterItemEventArgs e)<br />
    {<br />
        if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem)) <br />
        {<br />
            //This is to look for the Customer2.Repeater that is nested inside the Customer2.Repeater.<br />
            Repeater oRPT = (Repeater)e.Item.FindControl("Customer3");<br />
            DataRowView oDrv = e.Item.DataItem;<br />
            //This line is to retrieve only the records in the CTPT table that have the same ItemID as the HSCTI record in the current row.<br />
            oRPT.DataSource = oDrv.CreateChildView("ct_number");<br />
            oRPT.DataBind();<br />
        }<br />
    }<br />
</small><br />

Do you have any thoughts on this?

Thank you for your help. Trying to meet a deadline by morning. Will be here all night if necessary.

Regards,

Tim

Re: Help with Code conversion

Dan Neely26-Jan-06 11:29

Dan Neely

26-Jan-06 11:29

DataRowView oDrv = (System.Data.DataRowView)(e.Item.DataItem);

Re: Help with Code conversion

TMF32026-Jan-06 11:41

TMF320

26-Jan-06 11:41

Dan,

Thank you very much for your post. You got me past the error!!!

However, although I don't get any errors I still cannot see the nested data within the repeaters.

Some history:
I am attemtping to produce a Repeater that contains 2 nested repeaters that display child data to the parent of the previous. Like this:

Customer Information:
Call Tracking Incident
Comments for each CTI

So the last two repeaters will repeat for as many parent records there are in the parent.
Does this make sense?

It seems that developing single or two tier gridviews or repeaters is not a problem but when you want to expand to mulit-tier repeaters, there is little information on it.

If you have some time could you work me through this? The application is small and probably a sinch for you to troubleshoot.

I don't want to impose on you (but I'm desperate at this point).

If you could give me a few minutes I could post the code.

Sincerely,

Tim

Re: Help with Code conversion

James Gupta26-Jan-06 12:02

James Gupta

26-Jan-06 12:02

TMF, if your still on im up for another few hours - my MSN is jamespraveen@aol.com - just add me and we'll talk if you still have any problems

Re: Help with Code conversion

TMF32026-Jan-06 12:39

TMF320

26-Jan-06 12:39

James,

In the case that you haven't checked email in a bit, I sent you some information concerning the application that might help in diagnosing the problem.

Thank you again for all your help.

Tim

Re: Help with Code conversion

TMF32027-Jan-06 2:43

TMF320

27-Jan-06 2:43

James,

I didn't hear back from you yesterday after sending the code. Hope all is well.

If you get a chance to look the code I sent today I made a change in it that you'll need to know about.

See below:

The change deals with the pointer to the actual realtionship name instead of the table ID:
From: oRPT.DataSource = oDrv.CreateChildView("ItemID");
To: oRPT.DataSource = oDrv.CreateChildView("HSCTI1");

Unfortunately, I still do not get the child view.

<br />
<small><br />
public void Customers1_ItemDataBound(Object sender, RepeaterItemEventArgs e) <br />
    {<br />
        if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem)) <br />
        {<br />
            //This is to look for the Customer2.Repeater that is nested inside the Customer1.Repeater.<br />
            Repeater oRPT = (Repeater)e.Item.FindControl("Customer2");<br />
            DataRowView oDrv = (System.Data.DataRowView)(e.Item.DataItem);<br />
            //This line is to retrieve only the records in the CTPT table that have the same ItemID as the HSCTI record in the current row.<br />
            oRPT.DataSource = oDrv.CreateChildView("HSCTI1");<br />
            oRPT.DataBind();<br />
        }<br />
    }<br />
<br />
    //Show all related Comments on the Customers2 Repeater.<br />
    public void Customers2_ItemDataBound(Object sender, RepeaterItemEventArgs e)<br />
    {<br />
        if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem)) <br />
        {<br />
            //This is to look for the Customer3.Repeater that is nested inside the Customer2.Repeater.<br />
            Repeater oRPT = (Repeater)e.Item.FindControl("Customer3");<br />
            DataRowView oDrv = (System.Data.DataRowView)(e.Item.DataItem);<br />
            //This line is to retrieve only the records in the Comments table that have the same ItemID as the CTPT record in the current row.<br />
            oRPT.DataSource = oDrv.CreateChildView("CTPT1");<br />
            oRPT.DataBind();<br />
        }<br />
    }<br />
</small><br />

Please let me know if you have any suggestions.

Sincerely,

Tim

A transparent label?

drc_no126-Jan-06 6:57

drc_no1

26-Jan-06 6:57

Well, i'm quite new to C#, but i wanna learn. So, i've decided to make a program, but i have some dificulties in finding a label that can be set to transparent(only the label, through a transparency key).
The idea is that i have a large picture in the form and that i want to put some labels(or buttons or anything else which has some writing in front and the option to click on it... and, of course can be set to transparent) on the picture so that when you click it, it shows a messagebox. Confused | :confused:

The basic idea is that i need an object that can stay on top of a picture and be transparent.
p.s.: the idea with cutting the the picture in small sizes which can be set as background won't work because there are many labels... Sigh | :sigh:

thank u!

Re: A transparent label?

James Gupta26-Jan-06 7:39

James Gupta

26-Jan-06 7:39

Only forms can have an opacity key but you can set the label to get its color from an ARGB (Alpha Red Green Blue) value.

Re: A transparent label?

drc_no126-Jan-06 7:41

drc_no1

26-Jan-06 7:41

Thanks... I've found an overriden control that does that. And i think it's what i was looking for... Thanks, anyway -> the project name si simple line...
Big Grin | :-D

Help! Access generic list data in App_code class from code behind

Sue_NC26-Jan-06 6:38

Sue_NC

26-Jan-06 6:38

C# newbie has a simple C# question here:
suppose I have a list in PhotoManager.cs class under /App_Code. In photos.aspx.cs I want to call one item from the list data such as string skname, what should I do? I know if you use dataset you will have something like this: dsCategory.Tables(0).Rows(0).Item("skname") but I don't know how to do it with List. I googled for a while still no luck. BTW, the GetCategory method returns single row of data.

public static List<getcat> GetCategory(){

.....................................

GetCat temp = new GetCat(

(int)reader["skid"],

(string)reader["skname"]);

list.Add(temp);

................

}

I am thinking something like this

string strTemp = PhotoManager.GetCategory.Item("skname")

Obviously this has syntax error. any input is appreciated. thanks a lot in advance!

Beginners Question - User Controls

MarkMokris26-Jan-06 6:36

MarkMokris

26-Jan-06 6:36

I have created my own user control by subclassing UserControl. In the layout of the user control is a standard Button. The Button has its own Click event. How to I programatically raise the Click event of the UserControl when the Button inside is clicked?

Thanks,

Mark

Re: Beginners Question - User Controls

DigitalKing26-Jan-06 9:23

DigitalKing

26-Jan-06 9:23

Inside the UserControl:

private void button1_Click(object sender, EventArgs e)
{
this.onclick(e);
}

Modeless display - UserControl!

DotNetInterest26-Jan-06 6:23

DotNetInterest

26-Jan-06 6:23

Hi
There is a Usercontrol which is displayed in the modeless state.
Now i display another Usercontrol on top of the the other control and the other control is now completely invisible (it goes behind the new one i have shown now).

The invisible control has a a button control in it and it has a mnemonic set so that upon a particular key press, it will fire its Click event code.

Now when the user is currently working with the new Usercontrol that is displayed on top on the old one (which is currently invisible, but it is there), and hits a key, say "J", the old control's button control's click event gets fired. This is because the key "J" is its mnemonic. How to ensure that when that Usercontrol is not visible, the key down hit is not consumed by the hidden usercontrol's button control. and is used by the one on top - i.e. the new control.

I hav tried all sorts - OnVisibleChanged(), OnLostFocus() etc where i tried to remove hte Click event handler from teh button's click event and adding it when the control becomes visible, etc, but these do not work.

I think the only way to do that is to do something in hidden control's WndProc().

Any ideas?

vb convert c#, passing parameter crystal rpts

steve1_rm200026-Jan-06 5:40

steve1_rm2000

26-Jan-06 5:40

Hello,

I have a vb code which l am trying to convert to c# and having many problems with it. PFD = rpt.DataDefinition.ParameterFields.Item("@dt"). In c# there is not a parameterFields method called Item. So i am not sure how do l get the name of my parameter that is in the crystal report viewer.

Can anyone help me convert this code to c#.

<br />
Imports CrystalDecisions.Shared<br />
                Imports CrystalDecisions.CrystalReports.Engine<br />
                <br />
                Dim mDate As DataTime = #01/01/2005#<br />
                Dim rpt As New CrystalReport1<br />
                Dim PFD As ParameterFieldDefinition<br />
                Dim PValues As ParameterValues<br />
                Dim Parm As ParameterDiscreteValue<br />
<br />
                PValues = New ParameterValues<br />
<br />
                PFD = rpt.DataDefinition.ParameterFields.Item("@dt")<br />
                Parm = New ParameterDiscreteValue<br />
                Parm.Value = mDate<br />
                PValues.Add(Parm)<br />
                PFD.ApplyCurrentValues(PValues)<br />
<br />
                CrystalReportViewer1.ReportSource = rpt<br />

Thanks in advance,

Steve

Re: vb convert c#, passing parameter crystal rpts

J4amieC26-Jan-06 5:53

J4amieC

26-Jan-06 5:53

try this:

<br />
using CrystalDecisions.Shared;<br />
using CrystalDecisions.CrystalReports.Engine;<br />
<br />
DateTime mDate = DateTime.Parse("01/01/2005");<br />
CrystalReport1 rpt = new CrystalReport1();<br />
ParameterFieldDefinition PFD; <br />
ParameterValues PValues = new ParameterValues();<br />
ParameterDiscreteValue Parm;<br />
<br />
<br />
PFD = rpt.DataDefinition.ParameterFields["@dt"];<br />
Parm = new ParameterDiscreteValue();<br />
Parm.Value = mDate;<br />
PValues.Add(Parm);<br />
PFD.ApplyCurrentValues(PValues);<br />
<br />
CrystalReportViewer1.ReportSource = rpt;<br />

hope it works

Re: vb convert c#, passing parameter crystal rpts

steve1_rm200027-Jan-06 1:05

steve1_rm2000

27-Jan-06 1:05

Thanks for all your help.

PFD = rpt.DataDefinition.ParameterFields["dt"];

Have to take out the @ sign of an error message says field name does not exist.

Thanks,

Steve

The network Problem is Solved but.....

snouto26-Jan-06 4:08

snouto

26-Jan-06 4:08

Hello everybody .
I am developing chat / Server Application and my project worked will on my localhost and Lan but not on Wan or the internet. I posted this problem at the past and some professional programmers helped me i thank them very very much really i appreciate that from them , I Found that the windows xp has built in firewall i enabled it to access internet users to my server ports manually from my network connection properties. Ok and it works and i chatted with my friends through the internet using my application , But the problem is i need anyone install my messenger on his pc to enable these ports automatically during installation not to make the user manually enable his/her firewall . I know it must have a possible way to do that through win32 send messages function . Is there anyone knows how to send message programmatically to the firewall of windows to enable these ports through code through calling sendmessage , And if there any other methods i appreciate that from you all

Mess With The Best And Die Like The Rest

Re: The network Problem is Solved but.....

J4amieC26-Jan-06 5:46

J4amieC

26-Jan-06 5:46

If you think about it, a firewall that allows programmatic access to its setup woul be pretty daft! Virus writers could quite easily circumvent the protection of the majority of computer users.

I think the possibility of doing this (at least without local admin rights) is slim to nil.

Re: The network Problem is Solved but.....

leppie26-Jan-06 6:36

leppie

26-Jan-06 6:36

you have 3 options:
- contact the admin
- try upnp requests if IGD is upnp capable
- try open ports on Windows Internet Firewall

xacc.ide-0.1.1.11 - now with Settings & AutoComplete(kinda)

Binary converting byte to sbyte

Marco [Stinger]26-Jan-06 3:45

Marco [Stinger]

26-Jan-06 3:45

Hi coders !
I need to binary convert a byte (unsigned 8 bit, 0 to 255) to an
sbyte (signed 8 bit, -128 to 127).
I have no problem converting an array of bytes to any other
type using BitConverter.To[type] functions, but there's no
BitConverter.ToSByte ....

VS 2003 - compact framework SP3

any ideas ?

Ciao
Marco

-- modified at 9:54 Thursday 26th January, 2006

Re: Binary converting byte to sbyte

Guffa26-Jan-06 7:45

Guffa

26-Jan-06 7:45

You can just convert it, ignoring overflow, as there is no data loss.

byte source = -42;<br />
sbyte dest;<br />
<br />
unsafe { dest = (sbyte)source; }

---
b { font-weight: normal; }

Re: Binary converting byte to sbyte

Marco [Stinger]26-Jan-06 11:13

Marco [Stinger]

26-Jan-06 11:13

Are you sure ?
First off

<br />
byte source = -42;<br />

is indeed wrong since byte is UNSIGNED (0 to 255).
Second a simple cast doesn't convert BINARY the values,
meaning a 10010011 is (let's say) 215 for a byte and
-81 for a sbyte.

still looknig for help

Ciao
Marco

Wink | ;)

Re: Binary converting byte to sbyte

leppie26-Jan-06 11:39

leppie

26-Jan-06 11:39

tried unckecked ?

xacc.ide-0.1.1.11 - now with Settings & AutoComplete(kinda)

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