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Yes, keshav is right. MessageBox concept is very simple. If you want to learn your self then MSDN site and do some search there. I am ready to take you there if you need.
Sr. Software Engineer
Irevna, India
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what is the Bookmark?
where there is a will,there is a way!
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It's how you mark your page, like in a book.
Do you mean bookmarks in VS ? Same concept, a way to mark your place.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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how can i access control that is on parent mdi form from the child mdi form.
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Use the Parent property of child MDI form. Then you can access controls collection to find your desired controls.
"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder
coolestCoder
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make that control public. create an object of that form. access that control through this object in your child form
Sr. Software Engineer
Irevna, India
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Hello,
I have developed a windows control which has a toolbox. At this time, I made the system like this : The user of my Windows control can edit an XML file to customize the toolbar for image, text and click event. Now, it is a very boring and inefficient method. Is it really possible that the toolbar I am providing, my user could directly edit the toolbar item collection from Visual Studio Properties Editor and also directly create Click Event Handlers of their custmized toolbar items. ? In a word, in my custom control, I want the toolbar should behave as a Visual Studio editable Toolbar in Design Mode when I ship the control to my client/user.
I would appreciate your response. Please show me some resource URL where I can learn about it more.
Regards
emran
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hi.. how do u solve this prob? 'Proj.frmMain' does not contain a definition for 'Comm1
namespace Proj
{
public partial class frmMain : Form
{
private string[] tx_data = new string[14];
private string[] rx_data = new string[10];
public int i;
public frmMain()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void label16_Click(object sender, EventArgs e)
{
}
private void label18_Click(object sender, EventArgs e)
{
}
private void button3_Click(object sender, EventArgs e)
{
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
}
private void dataGridView2_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
}
private void txtTxmID1_TextChanged(object sender, EventArgs e)
{
}
private void txtTxmID5_TextChanged(object sender, EventArgs e)
{
}
private void lblRx2_TextChanged(object sender, EventArgs e)
{
}
private void lblRx5_TextChanged(object sender, EventArgs e)
{
}
private void cmdRead_Click(object sender, EventArgs e)
{
readID;
//For i = 1 To 6
// lblRx(i).Caption = rx_data(i + 1)
//Next i
string OutString = null;
string Instring = null;
int y = 0;
open_port;
//If the port is opened...
if (Comm1.PortOpen)
{
//tx_data(0) = "R"
//tx_data(1) = "I"
//tx_data(2) = "D"
//For i = 0 To 2
// Comm1.Output = tx_data(i)
//Next i
OutString = "RID";
Comm1.Output = OutString;
}
}
private void Comm1_OnComm()
{
string Instring = null;
for (i = 0; i <= 7; i++)
{
Instring = Comm1.Input;
if (Instring == "")
{
rx_data[i] = "00";
}
else
{
rx_data[i] = System.Convert.ToString(System.Convert.ToInt32(Instring[0]), 16).ToUpper();
}
}
Comm1.PortOpen = false;
for (i = 0; i <= 7; i++)
{
if (rx_data[i].Length < 2)
{
rx_data[i] = "0" + rx_data[i];
}
}
for (i = 1; i <= 6; i++)
{
lblRx[i].Caption = rx_data[i + 1];
}
}
public void open_port()
{
// Use COM1.
if (frmMain.Comm1.PortOpen == false)
{
frmMain.Comm1.CommPort = 1;
// 4800 baud, no parity, 8 data, and 1 stop bit.
frmMain.Comm1.Settings = "4800,N,8,1";
frmMain.Comm1.PortOpen = true;
}
}
public void Display_SysID()
{
open_port;
//If the port is opened...
if (frmMain.Comm1.PortOpen)
{
//tx_data(0) = "R"
//tx_data(1) = "M"
//tx_data(2) = "g"
//tx_data(3) = Chr(5)
//tx_data(4) = Chr(7)
//For i = 5 To 11
//tx_data(i) = 0
//Next i
//For i = 5 To 11
//tx_data(11) = tx_data(11) Xor tx_data(i)
//tx_data(i) = Chr(tx_data(i))
//Next i
//For i = 0 To 11
// frmMain.Comm1.Output = tx_data(i)
//Next i
frmMain.Comm1.Output = "R" + "M" + "g" + (char)(5) + (char)(7) + '\0' + '\0' + '\0' + '\0' + '\0' + '\0' + '\0';
frmMain.Comm1.PortOpen = false;
}
}
private void Form_Unload(int Cancel)
{
System.Environment.Exit(1);
}
public void writeID(string SysID, string SchID, string DeptID, string BlkID, string LevelID, string ClkID)
{
string OutString = null;
OutString = "";
tx_data[0] = "R";
tx_data[1] = "P";
tx_data[2] = "g";
tx_data[3] =
tx_data[4] =
tx_data[5] =
tx_data[6] =
tx_data[7] =
tx_data[8] =
for (i = 0; i <= 12; i++)
{
OutString = OutString + tx_data[i];
}
open_port;
//If the port is opened...
if (Comm1.PortOpen)
{
Comm1.Output = OutString;
Comm1.PortOpen = false;
}
}
public object cvtHexDec(string txtID)
{
string firstnum = null;
string secnum = null;
int f = 0;
int s = 0;
if (txtID.Length == 2)
{
firstnum = txtID.Substring(0, 1).ToUpper();
secnum = txtID.Substring(1, 1).ToUpper();
}
else
{
firstnum = "0";
secnum = txtID.Substring(0, 1).ToUpper();
}
for (i = 65; i <= 70; i++) // check for A - F (Hex format)
{
if (f == (char)(i))
{
f = (i - 55) * 16;
break;
}
}
for (i = 48; i <= 57; i++) // check for 0 - 9 (Hex format)
{
if (f == (char)(i))
{
f = (i - 48) * 16;
break;
}
}
for (i = 65; i <= 70; i++) // check for A - F (Hex format)
{
if (s == (char)(i))
{
s = i - 55;
break;
}
}
for (i = 48; i <= 57; i++) // check for 0 - 9 (Hex format)
{
if (s == (char)(i))
{
s = i - 48;
break;
}
}
f = f + s; //add the total of fisrtnum & secnum dec
cvtHexDec = (char)(f); //convert back to char
}
public object cvtHexToDec(string txtID)
{
string firstnum = null;
string secnum = null;
byte f = 0;
byte s = 0;
if (txtID.Length == 2)
{
firstnum = txtID.Substring(0, 1).ToUpper();
secnum = txtID.Substring(1, 1).ToUpper();
}
else
{
f = Convert.ToByte(0);
s = Convert.ToByte(0);
}
if (System.Convert.ToInt32(firstnum[0]) >= 65)
{
f = System.Convert.ToInt32(firstnum[0]) - 55;
}
else
{
f = System.Convert.ToInt32(firstnum[0]) - 48;
}
f = f * 16;
if (System.Convert.ToInt32(secnum[0]) >= 65)
{
s = System.Convert.ToInt32(secnum[0]) - 55;
}
else
{
s = System.Convert.ToInt32(secnum[0]) - 48;
}
f = f + s; //add the total of fisrtnum & secnum dec
return (char)(f); //convert back to char
}
private void cmdWrite_Click(object sender, EventArgs e)
{
writeID(txtTxmID0.Text.ToUpper(), txtTxmID1.Text.ToUpper(), txtTxmID2.Text.ToUpper(), txtTxmID3.Text.ToUpper(), txtTxmID4.Text.ToUpper(), txtTxmID5.Text.ToUpper());
}
}
}
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You have to define Comm1. Right now your not telling the Project what or where Comm1 is
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can u show where am i to define it?? thanks
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Inside frmMain, from the look of it.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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This is simple. You have not defined the Comm1. May be, during start you have defined and later you have commented/deleted it. Otherwise, jut re-define the Comm1.
Sr. Software Engineer
Irevna, India
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Some serious advice. This is the code of a person who needs to buy a beginner book, and work through it, before thinking about any sort of winforms programming.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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I am using acouple of COM objects in my project.
For example one is MS ActiveX Data Object Library.
My question is during the build these files are not copied to local but I am ending up with files in the build directory with names like 'Interop.ADODB.dll'. I thought the files were not copied to local and if they were how can I change the file name?
God Bless,
Jason
DavidCrow wrote: It would not affect me or my family one iota. My wife and I are in charge of when the tv is on, and what it displays.
I do not need any external input for that.
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You can't change any names. The interop file is what you need with your exe. A COM file can be anywhere on your hard drive, and a local copy makes no sense, as the registry stores the path to the file.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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BTW, I did see your answer yesterday, I was busy an didn't get a chance to say thanks.
God Bless,
Jason
DavidCrow wrote: It would not affect me or my family one iota. My wife and I are in charge of when the tv is on, and what it displays.
I do not need any external input for that.
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hi i hope i can find an answer of my question soooooon
i have a combobox column in gridview
this combobox has display member and value member
i am tring to get the value of the selected display member
to set it to another column in the gridview
how can i do it
thnx for help
MD_NADA
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Hi,
You can check in the event handler "SelectedIndexChanged"
private void cbxbox1_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (cbxbox1.SelectedValue != "")
{
/*Set the text in second combo box
or you can find the item in second combo and select it*/
cbxbox2.text = cbxbox1.SelectedValue.ToString());
}
}
I hope it will help.
-Samir.
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in web form u can access the value
gridview1.FindControl("DropDownList1").value
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hey,
does anyone knows where i can find a free source documentation about visual studion 2005? and pls i would like to know if uploading files in VS 2005 is similare to VS 2003? thank you in advance.
salie
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My situation is this:
I'm writing an app that needs to execute a separate program (we'll call it aaa.exe) and monitor its output so that my app can display the status of aaa.exe to the user. To do this I've started aaa.exe using a Process and have redirected the STDOUT stream to a StreamReader so that I can monitor the status messages that it spits out and use that information to update a status variable. Basically, what I have to monitor the stream is this:
string line = "";
while (line = stdout.ReadLine()) != null)
{
}
and then I parse line to determine the status of the spawned application. To prevent this while loop from locking up my GUI I've moved this code to another thread, so that the status variable will continually be updated by one thread and the GUI can intermittently poll that variable from it's own thread and remain responsive to the user.
Under normal circumstances, this works well. The while loop continues until aaa.exe stops sending data to STDOUT and then the thread monitoring it exits happily and all is well. The problem arises when things don't go well in aaa.exe. It is possible under worst case scenario conditions (so this happens frequently while I'm testing) that the spawned application locks up. When this happens, my code freezes execution on the function call stdout.ReadLine(), and I now have a deadlocked thread. The most direct way to end the rogue thread is to hard kill the process for aaa.exe (using Process.Kill()), but my boss has just informed that this is not an acceptable solution as it causes horrendous side effects to the operating environment. Using Thread.Abort has no apparent effect, it seems to wait for the next instruction to finish before doing anything to the thread which means nothing if the thread is suspended in a function call. So my question is this: is there some other way to end the Thread without killing the instance of aaa.exe, or more generally, is there some way to kill a non-responsive Thread in my application without doing a hard kill on the application itself?
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Instead of having a dedicated thread that reads the standard output in a while loop, is it possible to just do something like:
Process proc = ...;
proc.OutputDataReceived += OutputReceivedHandler;
...
void OutputReceivedHandler(object sender, DataReceivedEventArgs e)
{
}
That way, you're in a message-based system where you don't need to spawn/rendezvous/kill other threads.
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Nice idea. I'll definitely give that a shot when I get in to work tomorrow. Thanks for the help.
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Hello,
I am trying to run this program in VS 2003. This runs fine but I can't see the results in Vs 2003. Infact I am not using any grid or any thing like that but using Console.WriteLine to print the results. I know that this program prints in the command prompt but I am trying to find an option so that I can see the results in VS 2003 (either command window or any other window). Is there any other line of code that I can use to print the results in VS 2003?
static void Main()
{
//Application.Run(new Form1());
// 1. Instantiate the connection
string Connection;
Connection = "Data Source='TestServer';Initial Catalog=Northwind;Trusted_Connection=sspi";
//Connection = "Data Source='TestServer';Initial Catalog=Northwind;User id=sa;Pwd=development";
SqlConnection conn = new SqlConnection(Connection);
SqlDataReader rdr = null;
try
{
// 2. Open the connection
conn.Open();
// 3. Pass the connection to a command object
SqlCommand cmd = new SqlCommand("select * from Customers", conn);
//
// 4. Use the connection
//
// get query results
rdr = cmd.ExecuteReader();
// print the CustomerID of each record
while (rdr.Read())
{
//Console.WriteLine(rdr[0]);
System.Console.WriteLine(rdr[0]);
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
// close the reader
if (rdr != null)
{
rdr.Close();
}
// 5. Close the connection
if (conn != null)
{
conn.Close();
}
}
}
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