DatagridView Adds Extra Empty Row - C# Discussion Boards

Subin Mavunkal20-Dec-11 4:39

Subin Mavunkal

20-Dec-11 4:39

Why cant you use

[DataMember(Name="ID"]
[XmlAttribute("ID"),IsRequired=false]
public void ID {get; set;}

[DataMember(Name="SpecifiedID"]
[XmlAttribute("SpecifiedID"),IsRequired=false]
public void SpecifiedID{get; set;}

instead of

[DataMember(Name="ID"] ***
[XmlAttribute("ID"),IsRequired=false]
public void ID {get; set;}

[DataMember(Name="ID"] ***
[XmlAttribute("IDSpecified"),IsRequired=false]
public void IDSpecified{get; set;}

Is it permitted to use same Id for two different data members ?

rk288120-Dec-11 19:35

rk2881

20-Dec-11 19:35

hI,

Sorry for the mistake in question. Datamember names are different only.

[DataMember(Name="ID"]
[XmlAttribute("ID"),IsRequired=false]
public void ID {get; set;}

[DataMember(Name="SpecifiedID"]
[XmlAttribute("SpecifiedID"),IsRequired=false]
public void SpecifiedID{get; set;}

Still i m getting same error.

Eddy Vluggen20-Dec-11 6:30

Eddy Vluggen

20-Dec-11 6:30

rk2881 wrote:
It is giving error because property names are starting with same string "ID".

I bet that it's due to the datamember; it's no problem to have identifiers that start with the same prefix.

rk2881 wrote:
Pls help me ASAP.

We're volunteers, and your question is just as important as all the others here.

Bastard Programmer from Hell Suspicious | :suss:

SledgeHammer0120-Dec-11 6:37

SledgeHammer01

20-Dec-11 6:37

Did you notice that you have duplicate DataMember names? Thats not allowed. Also, how do you have get/set on a void method?

DatagridView Adds Extra Empty Row

rk288120-Dec-11 19:54

rk2881

20-Dec-11 19:54

Thanks for the reply.

I found the solution. Here is the link:
http://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlserializer.aspx

AmbiguousName20-Dec-11 1:07

AmbiguousName

20-Dec-11 1:07

hello guys... i have this datagridview inwhich I add some data using DataTable. Now If I add more than one rows in my grid, it adds two empty rows at the bottom while it should add just one. Here is the code

private void CellDblClick(object sender, DataGridViewCellEventArgs e)
{
    int colPartNum = 1;
    string colPartDetails = "Keyboard";
    int colQty = 5;
    double colPartCost = 15;

    //This is just a DataTable declared at the TOP
    AllItemsDT.Rows.Add(colPartNum, colPartDetails, colQty, colPartCost); 

    AddRowsToGrid(AllItemsDT);
}

private void AddRowsToGrid(DataTable dt)
{
  dgItemDetails.AutoGenerateColumns = false;
  dgItemDetails.Columns[0].DataPropertyName = dt.Columns[0].ColumnName;
  dgItemDetails.Columns[1].DataPropertyName = dt.Columns[1].ColumnName;
  dgItemDetails.Columns[2].DataPropertyName = dt.Columns[2].ColumnName;
  dgItemDetails.DataSource = dt;
  dgItemDetails.Rows[0].Selected = true;
}

So why it is adding two empty rows at the bottom if I add more than one rows, while it should add just one? thnx

Re: DatagridView Adds Extra Empty Row

PIEBALDconsult20-Dec-11 4:27

PIEBALDconsult

20-Dec-11 4:27

You may need to call AllItemsDT.AcceptChanges()

And I'm unsure you need most of what's in AddRowsToGrid

app working in window Xp but not in window 7

Hum Dum19-Dec-11 22:44

19-Dec-11 22:44

It's 32 bit Window application using kernel32.dll for serial port communication.
(I know about System.IO.Ports.SerialPort class existence, but application run fine in XP.)

In window 7 its not working as expected.
I disabled UAC, run as administrator. This started application but some function are not executing properly.

Like for GSM modem interface,
Modem response for AT command is OK, but in window 7 its not responding for app.

But if i use hyper-terminal in win7, its responding for AT.

What needs to be done to able to run the app?
I tried Google before posting here, but not much help.

I think, its kernel32.dll which the app unable to access or window 7 is restricting some function/feature of it?
Can any one please guide/help me?

regards

OriginalGriff19-Dec-11 23:03

OriginalGriff

19-Dec-11 23:03

Windows 7 is a lot stricter about hardware access than XP, and this is probably your problem. Have you tried running your app in Compatibility Mode?[^]

Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water

Hum Dum19-Dec-11 23:37

19-Dec-11 23:37

yes i tried that also.

but application not working as excepted. After compatibility mode setting, application able to read and write on serial port but unable to access modem status (GSM modem status, its capturing in XP like ring, busy etc).

[DllImport("kernel32.dll")]
public static extern Boolean GetCommModemStatus(IntPtr hFile, out UInt32 lpModemStat);

Also for GSM if i use ATZ command its responding, but not for AT.

It has to be with security, access control setting.

any other idea.

regards

Luc Pattyn20-Dec-11 7:03

Luc Pattyn

20-Dec-11 7:03

Having code execute well on one operating system does not imply the code is correct or good enough.

When inexplicable things happen, that tells me you are ignoring success/failure results somewhere. Make sure you look at every return value for system calls (such as the ones you're calling in kernel32.dll), call GetLastError correctly when such a function signals an error, and do not swallow exceptions, always report something is wrong, with the necessary details.

And be careful how you handle GetLastError, as the P/Invoke layer interferes with it; I explained it in here[^].

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Hum Dum8-Jan-12 22:43

8-Jan-12 22:43

WRT to you link, i tried but no luck.
then i replace hardware card/modem with another one.

And on this everything worked as excepted, without any code modification.
But same old card is working on XP, also responding to hyper-terminal in win 7.

Then i tried SerialPort class of .Net framework 2.0 wrt to this Article and old modem/card responded as excepted in win 7.

I am using this article for PI invoke.

My question is why its not working in win 7 with PI invoke code.
but responding with SerialPort class of .Net 2.0, also to hyper-terminal.
Old modem is PCI card, while new is PCI express.
Any light/idea you shed highly appreciated.

below are query modem log of both old(not working) and new(working)
Not Working Query Modem log

01-06-2012 20:48:20.029 - File: C:\Windows\system32\tapisrv.dll, Version 6.1.7600   
01-06-2012 20:48:20.045 - File: C:\Windows\system32\unimdm.tsp, Version 6.1.7600   
01-06-2012 20:48:20.045 - File: C:\Windows\system32\unimdmat.dll, Version 6.1.7600   
01-06-2012 20:48:20.045 - File: C:\Windows\system32\uniplat.dll, Version 6.1.7600   
01-06-2012 20:48:20.060 - File: C:\Windows\system32\drivers\modem.sys, Version 6.1.7600   
01-06-2012 20:48:20.060 - File: C:\Windows\system32\modemui.dll, Version 6.1.7600   
01-06-2012 20:48:20.060 - File: C:\Windows\system32\mdminst.dll, Version 6.1.7600   
01-06-2012 20:48:20.060 - Modem type: Conexant 56K Voice Modem
01-06-2012 20:48:20.060 - Modem inf path: oem15.inf
01-06-2012 20:48:20.060 - Modem inf section: Modem1
01-06-2012 20:48:20.060 - Matching hardware ID: pci\ven_2003&dev_8800&subsys_280016ef
01-06-2012 20:48:20.060 - Opening the modem device failed with error 00000020
ATQ0V1E0 - OK
AT+GMM - Conexant 56K Voice Modem
       Ver4.20.01AG11
AT+FCLASS=? - 0,1,2.0,8
AT#CLS=? - 0,1,2.0,8
AT+GCI? - +GCI:B5
AT+GCI=? - +GCI:(B5)
ATI1 - Conexant 56K Voice Modem
       Conexant
       Ver4.20.01AG11
       Rev
ATI2 - Conexant 
       Ver4.20.01AG11
       Rev
       MV (CID\SPK)
ATI3 - Conexant
       SL8800 PCI
ATI4 - Active Profile:
       S00=000 S01=000 S02=043 S03=013 S04=010 S05=008 S06=002 S07=060
       S08=002 S09=006 S10=128 S11=100 S12=050 S13=000 S14=000 S15=001
       S16=001 S17=000 S18=000 S19=000 S20=000 S21=000 S22=000 S23=000
       S24=050 S25=000 S26=000 S27=008 S28=000 S29=001 S30=002 S31=001
       S32=092 S33=009 S34=034 S35=000 S36=000 S37=001 S38=000 S39=002
       S40=000 S41=000 S42=000 S43=000 S44=000 S45=250 S46=017 S47=000
       S48=000 S49=000 S50=000 S51=000 S52=000 S53=000 S54=000 S55=000
       S56=004 S57=000 S58=000 S59=000 S60=001 S61=000 S62=001 S63=000
       S64=000 S65=000 S66=000 S67=000 S68=000 S69=000 S70=000 S71=000
       S72=019 S73=003 S74=153 S75=000 S76=004 S77=001 S78=000 S79=070
       S80=070 S81=000 S82=002 S83=055 S84=000 S85=000 S86=000 S87=000
       S88=001 
ATI5 - Stored Profile 0:
       Not defined
ATI6 - Stored Profile 1:
       Not defined
ATI7 - Country: USA
       Serial Number: 0
       Protocol Factor: 0

Working Query Modem log

ATQ0V1E0 - OK
AT+GMM - +GMM: PCIe CX95610 Soft Modem
AT+FCLASS=? - 0,1
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - +GCI: 53
AT+GCI=? - +GCI: (00,01,02,03,04,05,06,07,09,0A,0B,0C,0D,0E,0F,10,11,12,13,14,15,16,19,1A,1B,1C,1D,1E,1F,20,21,22,
23,24,25,26,27,28,29,2A,2B,2C,2D,2E,2F,30,31,32,33,34,35,36,37,38,39,3A,3B,3C,3D,3E,40,41,42,43,44,45,46,47,48,49,
4B,4C,4D,4E,4F,50,51,52,53,54,55,56,57,58,59,5A,5B,5C,5E,5F,60,61,62,63,64,65,66,67,68,69,6A,6B,6C,6D,6E,6F,70,71,
72,73,74,75,76,77,78,79,7A,7B,7C,7D,7E,7F,80,81,82,83,84,85,86,87,88,89,8A,8B,8C,8D,8E,8F,90,92,93,94,96,97,98,99,
9A,9B,9C,9D,9E,9F,A0,A1,A2,A3,A4,A5,A6,A7,A8,A9,AA,AB,AC,AD,AE,AF,B0,B1,B2,B3,B4,B5,B6,B7,B8,B9,BA,BB,BC,BD,BE,BF,
C1,C2,C3,C4,C5,C7,C8,C9,CA,CB,CC,CD,CE,CF,D0,D1,D2,D3,D4,D5,D6,D7,D8,D9,DA,DB,DC,DD,DE,DF,E0,E1,E2,E3,E4,E5,E6,E7,
E8,EA,EB,EC,ED,EE,EF,F0,F1,F2,F3,F4,F5,F7,F8,F9,FA,FB,FC,FE)
ATI1 - 255
ATI2 - OK
ATI3 - HSF_V7.80.2.51
ATI4 - PCIe CX95610 Soft Modem
ATI5 - 083
ATI6 - SoftK56 
       CModem Version 12
       Rksample Version 342
ATI7 - 255
ATQ0V1E0 - OK
AT+GMM - +GMM: PCIe CX95610 Soft Modem
AT+FCLASS=? - 0,1
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - +GCI: 53
AT+GCI=? - +GCI: (00,01,02,03,04,05,06,07,09,0A,0B,0C,0D,0E,0F,10,11,12,13,14,15,16,19,1A,1B,1C,1D,1E,1F,20,21,22,
23,24,25,26,27,28,29,2A,2B,2C,2D,2E,2F,30,31,32,33,34,35,36,37,38,39,3A,3B,3C,3D,3E,40,41,42,43,44,45,46,47,48,49,
4B,4C,4D,4E,4F,50,51,52,53,54,55,56,57,58,59,5A,5B,5C,5E,5F,60,61,62,63,64,65,66,67,68,69,6A,6B,6C,6D,6E,6F,70,71,
72,73,74,75,76,77,78,79,7A,7B,7C,7D,7E,7F,80,81,82,83,84,85,86,87,88,89,8A,8B,8C,8D,8E,8F,90,92,93,94,96,97,98,99,
9A,9B,9C,9D,9E,9F,A0,A1,A2,A3,A4,A5,A6,A7,A8,A9,AA,AB,AC,AD,AE,AF,B0,B1,B2,B3,B4,B5,B6,B7,B8,B9,BA,BB,BC,BD,BE,BF,
C1,C2,C3,C4,C5,C7,C8,C9,CA,CB,CC,CD,CE,CF,D0,D1,D2,D3,D4,D5,D6,D7,D8,D9,DA,DB,DC,DD,DE,DF,E0,E1,E2,E3,E4,E5,E6,E7,
E8,EA,EB,EC,ED,EE,EF,F0,F1,F2,F3,F4,F5,F7,F8,F9,FA,FB,FC,FE)
ATI1 - 255
ATI2 - OK
ATI3 - HSF_V7.80.2.51
ATI4 - PCIe CX95610 Soft Modem
ATI5 - 083
ATI6 - SoftK56 
       CModem Version 12
       Rksample Version 342
ATI7 - 255

Luc Pattyn9-Jan-12 5:17

Luc Pattyn

9-Jan-12 5:17

I can't tell what is wrong in your P/Invoke code as you aren't showing any of it.

I could guess your problem is one of these:
1. access right problems, Vista/Win7 being more protective of system resources than XP is.
2. Your Win7 probably is 64-bit, whereas your other systems probably are 32-bit, which means your P/Invoke must now correctly handle pointers, e.g. be aware that IntPtr is 32/64 bit depending on OS, whereas a lot of P/Invoke examples wrongly use int to pass pointers. (One way to circumvent this problem is by building for "x86" rather than "AnyCPU").

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Hum Dum9-Jan-12 18:50

9-Jan-12 18:50

Luc Pattyn wrote:
I can't tell what is wrong in your P/Invoke code as you aren't showing any of it.

The code is same not a bit change from the article i mention i.e. Use PI invoke for serial communication.
Updated code is in download link of article, on MSDN(article) page code is not updated.

In case of not working modem ReceiveThread() of CommBase.cs is not behaving as its in working modem.

eventMask = (uint)Marshal.ReadInt32(uMask);
//some code

//not able to get inside this block in not working modem and OnRxChar(buf[0]) event is not raised
if ((eventMask & Win32Com.EV_RXCHAR) != 0) 
{
	do 
	{
		gotbytes = 0;
		if (!Win32Com.ReadFile(hPort, buf, 1, out gotbytes, unmanagedOv)) 
		{
			int x = Marshal.GetLastWin32Error();
                        throw new CommPortException("IO Error [004]");
		}
		if (gotbytes == 1) OnRxChar(buf[0]);
	} while (gotbytes > 0);
}

//same for OnStatusChange event is not raised
uint i = 0;
if ((eventMask & Win32Com.EV_CTS) != 0) i |= Win32Com.MS_CTS_ON;
if ((eventMask & Win32Com.EV_DSR) != 0) i |= Win32Com.MS_DSR_ON;
if ((eventMask & Win32Com.EV_RLSD) != 0) i |= Win32Com.MS_RLSD_ON;
if ((eventMask & Win32Com.EV_RING) != 0) i |= Win32Com.MS_RING_ON;
if (i != 0)
{
        uint f;
	if (!Win32Com.GetCommModemStatus(hPort, out f)) throw new CommPortException("IO Error [005]");
	OnStatusChange(new ModemStatus(i), new ModemStatus(f));
}

above are few lines of ReceiveThread for reference which are not executing as excepted.

Luc Pattyn wrote:
Your Win7 probably is 64-bit,

Its 32 bit.

Luc Pattyn wrote:
(One way to circumvent this problem is by building for "x86" rather than "AnyCPU").

This i will try. But have doubt as same code is working in same window 7 but with different card.

But not working card respond with .Net 2.0 serial port class under same window 7.

Data Source problem

David baghaturia19-Dec-11 20:13

David baghaturia

19-Dec-11 20:13

Hi
I have problems with data source.
In my solution I have two project:

1) DataObject project
2) Application Project

In DataObject Project I have all data objects that I need. Yesterday I add new object to PayObject.xsd file in DataObject Project.
But I can’t see this new data member in my BindingSource property in Application project.

It seem that my Application Project don’t see this new data object, that I add and he only see’s old data members.

I try to rebuild whole solution and project a part, but result is same.

Thanks for your help.

Jitendra Parida - Jeetu20-Dec-11 1:56

Jitendra Parida - Jeetu

20-Dec-11 1:56

Hi,

First clean the project then after built the project.

David baghaturia20-Dec-11 5:57

David baghaturia

20-Dec-11 5:57

yes
I did it, but result is same.

AmitGajjar25-Dec-11 22:00

AmitGajjar

25-Dec-11 22:00

Hi,

remove that reference , clean your bin directory of DataObject project and build after reference it.

that my resolve your issue. sometimes VS cache reference information

thanks
-amit.