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hi all,
i have a datagridview with 2 columns. (1 is readonly and the other can be edited)
i want to restrict users just to type characters from 0 to 9 and . (dot).
how can i check this during editing ?
in which event should i place this code:
Regex regex = new Regex("^[0-9-.]*$");
if (regex.IsMatch(txtprice.Text))
{
// Type is Correct!
}
ps: and this code is a textbox's check. how should write selectedcell index instead of txtprice.Text ?
thanks in advance,
bye.
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Mehmet Fatih Akbulut wrote: i want to restrict users just to type characters from 0 to 9 and . (dot).
Unfortunately you can not do that. While this GenericDataGridView[^] article can solve your problem.
Regards.
_____________________________
Success is not something to wait for, its something to work for.
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Handle the DataGridView.CellValidating event, and use the argument's ColumnIndex property to check to make sure its within the row(or rows) you want to validate to have that format. Use Decmial.TryParse and use the System.Globalization.NumberStyles.* modifiers to only include numberic and decimal points. If that fails, either inform the user or set the cell's value to 0.
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Hi All,
I need to redirect command line output to a text file.
here is my code test.exe that takes test as a parametr.
Process p = new Process();
p.StartInfo.FileName = "C:\\test.exe";
p.StartInfo.Arguments = "Test";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardInput = false;
p.StartInfo.RedirectStandardError = false;
p.StartInfo.CreateNoWindow = true;
p.Start();
Console.WriteLine("output");
string output = p.StandardOutput.ReadToEnd();
Console.WriteLine(output);
p.WaitForExit(1000);
p.Close();
Issues is that I dont get the redirected output. test.exe is an app that writes all the printer events to the output window and can only be stopped with a break ctrl C.
Let me know what goin wrong. How do i redirct the output.I have also used > text.txt but in vain.
newdev
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Process.StandardOutput,Process.StandardInput,Process.StandardError are streams with the data you need.
Process.OutputDataReceived is one of the events to tell you when data is written.
A man said to the universe:
"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."
-- Stephen Crane
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Hi..Thanks for the reply. Can anyone give a sample code that will work fine..
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Hi.
Was wonder if it is possible to take an argument at the point of installation. That I can do, the question actually being if that value the user enters can contain spaces. Works wonderfull aslong as you enter single word values.
Thanx in advance
He who laughs last is a bit on the slow side
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Hi
I work with Framework 2.0 (c#).
I do not know how to dynamicaly change ForeColor of a row in DataGridView depending on value of one column in grid which changes dynamically too.
When I tried to use DataGridView.CellFormatting event only cell where the value is changed has the right forecolor. However other have the old one.
After selecting and deselecting other cells in the row they have right color.
AlternatingStyle is not good because there are more than two kind of colors.
Which event do I have to use and which method call in order to refresh a whole row?
Before (in Framework 1.1) I did it by creating columns inheriting from my own class where method paint was overriden. However I would like to use new features in F 2.0.
Thanks
Ela
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e_LA wrote: When I tried to use DataGridView.CellFormatting event only cell where the value is changed has the right forecolor
I think you're close. You can get the rowindex from this event and change the cells in the row.
only two letters away from being an asset
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Sorry but I do not understand. Move to others cells?
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I did something like that in formattingCellEvent
myDataGridView.Rows[e.RowIndex].Cells[5].Style.ForeColor = e.CellStyle.ForeColor;
Just fifth cell for example ....
and now it works
....very strange
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It doesn't work if I stay in the same row (I do not change the row) - for example by pressing TAB not ENTER.
I think I should return to the previous version with overriding Paint event in custom type column 
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I don't understand what you are trying to do and what you are doing. Maybe a code snippet would be helpful. Once you change the color of a cell it doesn't matter what else you do.
only two letters away from being an asset
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Hi all.
I'm working with Observer pattern in C#. I want to show the modifications in all clients windows conected. The only way y have found to do this is using a timmer which refresh the clients windows. In this timmer I do the call to the update.
Some one knows another way to do this with no timmer??
Thanks.
_mistika_
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Why don't you have the client windows subscribe to an event that tells them when a change has been made, the client window's event handler will then update themselves.
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2-way Databinding will show changes in the fields when the underlying data changes.
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Hi,
We already have a windows service set up to write to binary file for "our" custom events. Need to translate this binary file into comma delimited text file - how would we go about doing that? Can we just some built in VS2005 functions?
any ideas/thoughts much appreciated.
Thank you for your time.
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Read the binary file, convert the data into text base on whatever format specification that your system employ, write the file into the CSV file.
Or
Write both binary and CSV during your "normal operation".
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Please don't cross post.
---
b { font-weight: normal; }
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Hi All,
I am using OPENROWSET to copy data from an oracle server table to my local SQL Server table using OLE DB. I fired the query on the SQL Query analyzer and it worked fine. But when i tried to run the same query from VS.Net 2003, ie from my Windows Service project, it didnt copied the data. But it also didnt fired any exception. So, if any one knows where i am going wrong, please notify me.
Thanks in Advance.
"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder
Anant Y. Kulkarni
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for geting data from DataTable, I use class:
Infragistics.Excel.Workbook wb = new Infragistics.Excel.Workbook();
wb.Worksheets.Add("UslugeTransporta");
...
and for exporting in excel, I use method:
Infragistics.Excel.BIFF8Writer.WriteWorkbookToFile(wb, filename);
but, I dont't know how to insert picture intop excel file
Mirjana
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hi
Can any one help me to find the logic for polygon intersection.
Thank you,
regards
Praveen
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i want to read .ini files with c# i import
using System.Runtime.InteropServices;
and i wrote these
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section,
string key, string def, StringBuilder retVal,
int size, string filePath);
StringBuilder stb = new StringBuilder(250);
GetPrivateProfileString("HATALAR", key, "", stb, 250, "C:\\Documents and Settings\\.......");
i want to use stb it gives me no error but it can't find any thing.my path, key section are true.do i have to import something else? or what must i do?
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There's nothing wrong with your code, I've just tried it (see below) and it works fine.
using System.Text;
using System.Runtime.InteropServices;
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section,
string key, string def, StringBuilder retVal,
int size, string filePath);
StringBuilder stb = new StringBuilder(250);
private void Form1_Load(object sender, System.EventArgs e)
{
GetPrivateProfileString("mySect", "item", "def_", stb, 250, @"c:\temp\myfile.ini");
stb = stb;
}
I set a breakpoint on the stb = stb; line, and used quick view to look at the object - my INI file data is there.
Therefore... double check the path to your INI file, double check the INI file is in the correct format. My enable files looks like this:
[mySect]
item=notDEFAULT
Hope that helps.
- Dy
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