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I am creating a simple program that reads and writes files to a database. I have SequetialAccess for reading the data down, it works great, and is very very efficient.
The problem I have is with writing to the database. I can only write the file BLOB in one big, very slow chunk. I want to be able to create a buffer and write in buffered intervals.
Any suggestions.
The best way to accelerate a Macintosh is at 9.8m/sec² - Marcus Dolengo
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Hi i trying to search for values in .txt file and return the existings lines
But how can i trim down the string[] Chunk to -3 letters??
for example:
.txt file look like this
#
k441122
blabla
blabla
blabla
blabla
if i search for k441 than return the k441122 with all the existings lines?
i have tryade Chunk.Substring(0 , 4)
Any idea??
My code look like this:
private bool ReadChunk(StreamReader sr, out string[] Chunk, string MatchData)
{
Chunk = new string[9];
bool FoundMatch = false;
for (int i = 0; i < 9; i++)
{
try
{
Chunk[i] = sr.ReadLine();
if (i == 1 && Chunk[i] == MatchData)
{
FoundMatch = true;
}
}
catch (Exception ex)
{
FoundMatch = false;
}
}
return FoundMatch;
}
Big Tnx!!
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Use Regex.
if (Regex.IsMatch(szStringToSearch, szPatternToFind, RegexOptions.IgnoreCase))<br />
{<br />
MessageBox.Show("Success");<br />
}
The best way to accelerate a Macintosh is at 9.8m/sec² - Marcus Dolengo
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Hey guys,
I need your help with 2 things on a DataGridView in VS2005.
1) I need a cell to have 1 row in it underlined, e.g:
<underlined> hello
world
2) I need to have a border between 2 lines in the DataGridView highlighted (bolded, colored etc)
Thanks!
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I am making a project that is due soon and one of the last things i need to do is set frmSearch as a child of the parent form frmMain.
Here is my problem
I have frmMain, when it opens I click on a button that opens frmEmployeeInfo. This is a child form and works well. On this frmEmployeeInfo there is a button that takes me to the form frmSearch. I am having problems setting frmSearch as a child of frmMain. Is there a way to do this.
I have tried everything. I tried creating a method in frmMain and calling it in frmEmployeeInfo (supposed to open the frmSearch and set it as child), i tired a lot of other stuff, and I am getting down to the wire.
Please help
And I thank you in advance. I will be on line refreshing this page every couple of mins if you need more explination.
Thanks again
Kyle
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Set the Owner or Parent of the new child form to be the owner/parent of the form that is creating it.
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 )
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Im a little confused. What do you mean?
Kyle Maldonado
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Each windows from has a method called Show and ShowDialog. Each of these methods has an overload that accepts an IWin32Window). The MSDN documentation states that the IWin32Window is any "object that implements System.Windows.Forms.IWin32Window and reprepsents a top-level window that will own this form.
If you were to do frmSearch.ShowDialog(someFormName), I think this would accomplish what you are after.
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Apart from the above post, i'm pretty sure setting the forms .Owner and .Parent properties would work.
Also, to get main form from your employee form, use this.Parent. That will give you a reference to frmMain.
frmSearch = new frmSearch();<br />
frmSearch.ShowDialog(this.Parent);
My current favourite word is: Bauble!
-SK Genius
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Will this let me pass data from frmSearch to frmEmployeeInfo?
I need to pass RecId from frmSearch to frmEmployeeInfo because I need to read a record and populate the listbox in frmEmployeeInfo.
Thanks again, you guys are a life savor.
Kyle
Kyle Maldonado
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you should not interlink two forms to much (of course you could give the constructor of frmSearch a reference to a frmEmployeeInfo-object and use some public function of frmEmployeeInfo to do this - but I would advise against it) - better use something like:
- a event in frmSearch to post the info
- a callback-delegate that is passed to frmSearch (this is more or less the same than using an event - but the event has better VS-integration 
- a public function/property on frmSearch to query the data
I would advise:
- if you call the frmSearch as an modal dialog use the public property approach
- if not use the callback-delegate approach
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Hi i have written the code below, its job is to bring up a popup when a button is clicked, however although the popup comes up when information is entered into the popup it brings back an error saying, input string was not in correct format.
Hi that works but it doesnt take across "WorkSchedule_ID" because although the popup loads, when i enter information into it, the result is still "input string was not in a correct format". I tried this but it didnt work, the offending line is "strPrimaryKey =e.Item.DataBind("WorkSchedule_ID").ToString;". WorkSchedule_ID is coming from the database and each recored has its on unique ID, how can i pass it through to the page?
protected void btnModify_Click(Object sender, DataGridCommandEventArgs e)
{
if (e.CommandName == "Submit")
{
string strPrimaryKey = (string)e.CommandArgument;
strPrimaryKey =e.Item.DataBind("WorkSchedule_ID").ToString;
//int intPrimaryKey = Convert.ToInt32(strPrimaryKey);
strEvent = "<script language='javascript'>\r\n";
strEvent = strEvent + "popup('sow_notes.aspx?WorkSchedule_ID=" + strPrimaryKey;
strEvent = strEvent + "&survey_id=" + Request.QueryString["survey_id"].ToString();
strEvent = strEvent + "&sow_type_id=" + Request.QueryString["sow_type_id"].ToString();
strEvent = strEvent + "&surveytype_id=" + Request.QueryString["surveytype_id"].ToString();
strEvent = strEvent + "&property_id=" + Request.QueryString["property_id"].ToString() + "');\r\n";
strEvent = strEvent + "</script>";ViewState["sEvent"] = strEvent;
}
}
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1. You should have posted this in the ASP .NET forum.
2. I don't know ASP .NET, but I think there are better ways of popping up a window.
3. Why are you initializing strPrimaryKey?
4. strPrimaryKey =e.Item.DataBind("WorkSchedule_ID").ToString; shouldn't even compile - ToString is a method, you are missing the parantheses.
5. Have you stepped through the code? What are you seeing there?
Cheers,
Vikram.
"If a trend is truly global, then that trend ought to be visible across ANY subset of that data" - fat_boy
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Im Serializing this Object 'PersonNode'. It Serializing ok but the attribute 'name' is not coming through. Why would this be?
[Serializable]
public class PersonNode: List<child>
{
[XmlAttribute("name")]
public string name;
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Hi All,
I have 4 project that have dependencies on each other.
I want to compile them all together - but i want to use some "make" file to do it because i need them to be compile in some const order.
I know that i can use the pre-Build option to set the compile order - but i prefer to do it by using some "make" file.
I don't know how to do it ( write the make file to this mission ).
Thanks for the help.
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You could write the file yourself, but why since Visual Studio automatically detects project dependencies in the same solution and compiles them in the proper order.
Or, if you want to rearrange the dependencies yourself, just click the Project menu and pick "Project Dependencies" to set it up.
If you really want to write your own MSBuild files, I guess you can get an overview of it from this[^].
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I have a problem:
if (radioButton1.Checked)
a.SubItems[1].BackColor = Color.Green;
else if (radioButton2.Checked)
a.SubItems[1].BackColor = Color.Orange;
else if (radioButton3.Checked)
a.SubItems[1].BackColor = Color.Red;
else if (radioButton4.Checked)
a.SubItems[1].BackColor = Color.White;
if i execute that code, the subitem don't change the color
how works??
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I have a problem:
if (radioButton1.Checked)
a.SubItems[1].BackColor = Color.Green;
else if (radioButton2.Checked)
a.SubItems[1].BackColor = Color.Orange;
else if (radioButton3.Checked)
a.SubItems[1].BackColor = Color.Red;
else if (radioButton4.Checked)
a.SubItems[1].BackColor = Color.White;
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Are you constipated? Are rabbits eating the cabbage in your garden? Are you on an airplane that has been hijacked? No? Then perhaps your problem is that you insufficiently described the "problematic" results you are seeing from running the above code, and will get NO help until you do. Be specific.
-Jeff
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And the first problem I spotted was "You forgot to mention your query". 
Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips
A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't see the clouds at all - he's walking on them. --Leonard Louis Levinson
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I have the following FolderWatcher.cs class that monitors and deletes fies older than X number of days.
using System;<br />
using System.IO;<br />
using System.Collections;<br />
using System.Text;<br />
<br />
namespace Files_ExtLib1<br />
{<br />
public class FolderWatcher<br />
{<br />
string m_FolderPath;<br />
<br />
public FolderWatcher()<br />
{<br />
}<br />
<br />
#region Property<br />
public string FolderPath<br />
{<br />
get<br />
{<br />
return m_FolderPath;<br />
}<br />
set<br />
{<br />
m_FolderPath = value;<br />
}<br />
}<br />
#endregion<br />
<br />
public int DeleteFilesOlderThan(int Days, int Hrs, int Mins)<br />
{<br />
string[] oldFilePaths = FilesOlderThan(Days, Hrs, Mins);<br />
int count = 0;<br />
foreach (string filePath in oldFilePaths)<br />
{<br />
try<br />
{<br />
File.Delete(filePath);<br />
count++;<br />
}<br />
catch (Exception e)<br />
{<br />
Console.WriteLine("Unable to delete " + filePath);<br />
Console.WriteLine("Reason: {0}", e);<br />
}<br />
Console.WriteLine("Files successfully deleted");<br />
}<br />
return count;<br />
}<br />
<br />
<br />
public string[] FilesOlderThan(int Days, int Hrs, int Mins)<br />
{<br />
TimeSpan ts = new TimeSpan(Days, Hrs, Mins, 0);<br />
ArrayList oldFilePaths = new ArrayList();<br />
string[] filePaths = Directory.GetFiles(FolderPath);<br />
DateTime currentDate = DateTime.Now;<br />
foreach (string filePath in filePaths)<br />
{<br />
DateTime lastWriteDate = File.GetLastWriteTime(filePath);<br />
if ((currentDate - lastWriteDate) > ts)<br />
{<br />
oldFilePaths.Add(filePath);<br />
}<br />
}<br />
return (string[])oldFilePaths.ToArray(typeof(string)); <br />
}<br />
}<br />
}
I need to test this peice of code on a dummy foler. I already did it buh I want to add 2 more methods.
1) method that will create dummy test files for me with format .txt, .exe, .log
2) secondly, to test my class, i want a method that will delete specific file types. e.g delete .txt files only or .exe, or .log
Anybodyy can help me with this?
Thanks alot
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hello, everybody
my problem is the following:
I want to make a course project that would be applied in students payroll department in my university. this department has two units. each unit must have its own interface but the database would be shared for the two interfaces. so I made new project in MVS 2005 C# with 3 forms (LogIn Form,Form1,Form2). logIn form is the start form that link to the form1 or form2 based on username and password of the two units. and I want to make something like mail between the two forms.
my database has the following tables:
1. "Unit1Mail": to stores the mails of unit1 those unit2 sent.
2. "unit2Mail": to stores the mails of unit2 those unit1 sent.
so I put timers in form1 and form2 to check if there is new message.
so checking of new message will be done by comparing the old number of rows of the "Unit1Mail" or "Unit2Mail" tables and the current number of rows.
so in form1_load handler, I put this statement to get the old number of rows and stores it in global variable "i":
this.oleDbDataAdapter1.Fill(this.dataSet11,"Unit1Mail");<br />
i = this.dataSet11.Tables["Unit1Mail"].Rows.Count;
and in timer1_teck handler, I put these statements to compare the ole and current numbers:
this.dataSet11.Clear();<br />
this.oleDbDataAdapter1.Fill(this.dataSet11, "Unit1Mail");<br />
if (this.dataSet11.Tables["Unit1Mail"].Rows.Count > i)
this.label1.Text = " You have a new message";
and also I do the same in Form2
and then, I sent a message from unit1 to unit2 . but I don't know why it didn't work correctly (the label1 didn't show the string that u have new message)
so, is there any problem with these statements???? 
please I need help with this situation....
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Hello to all you pro's,
I have a small problem i don't understand.
I have a constructor, in which i initialize some of my object members,
after that I wanna call btnOK.performClick() in order to call the buttons click event handler.
this is a login screen which I want to be able to run threw batch file.
I pass to Main the user and password, but it waits for a user to click OK.
I wanted to make it full automatic so inside c'tor i wrote btnOK.performClick().
this doesn't work, this program doesn't jump to the handler. what can I do about it????
here is some relevant code, don't hesitate if any more data is required.
thank you all for your help.
in Main()
if (!EltavGateway.Properties.Settings.Default.UseDefultLogin)
{
frmLogin frmLoginUser = new frmLogin();
if (frmLoginUser.ShowDialog() != DialogResult.OK)
{
return;
}
}
else
{
frmLogin frmLoginUser = new frmLogin(args);
if (frmLoginUser.ShowDialog() != DialogResult.OK)
{
return;
}
}
in function
public frmLogin(String[] args)
{
InitializeComponent();
//if the flag for automatic login is flagged true, then check that main was
//passed arguments for login(run from batch file). if not, go to regular login.
//enter an existing user and password
if (args.Length == 2)
{
tbName.Text = args[0];
tbPassword.Text = args[1];
this.btnOK.PerformClick();
}
}
P.S
sorry for the code presentation but for some reason I can't use the labels "pre" and "code",
since it tells me I am leaving the page and loosing all data.
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Why are you even clicking on the button?? Don't bother.
Move the code that's in the OK button's click event to it's own method, say you call it PerformLogin, then call it from where you have your current PerformClick line. Obviously, remove this line since it's useless to you.
Rewrite your OK buttons click event handler to call this same method with the appropriate parameters.
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