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Remember that nullable types can only take value types as the generic argument (as value types cannot be null). So in your declaration you just need to specify that T is a value type:
public static bool ValidateNumber<T>(T tNum, T? tMinimum, bool bMinInclusive, T? tMaximum, bool bMaxInclusive) where T : struct, IComparable<T>
Hope this helps. 
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i would like to filter my DataView rows with multiple conditions or criteria
eg
dtResults.DefaultView.RowFilter = "Status = 'APPROVED' AND DISTANCE ='YELLOW PAGES'";
is it possible ?
if it's possible what is the right way to do it?
any help will be appreciated
thanks
regards paula
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Hi,
this should work like you wrote it (assuming column names and datatypes are corrrect).
See here[^] for more infos.
Robert
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Holla,
I am currently for the first time requiring differently marked items in a treeView. Namely, I have a Text-Box in which a search-string is entered. If the search is sent, all items
containing the search-pattern should be marked (by making them display in bold font.
Since the NodeFont property of the nodes is not set (by default, I guess), I am using the treeView's Font as a reference:
<br />
public void markNodes (System.Windows.Forms.TreeNodeCollection nodes)<br />
{<br />
if (nodes.Count == 0) return;<br />
foreach( System.Windows.Forms.TreeNode currNode<br />
in nodes<br />
)<br />
{<br />
if (currNode.Text.ToLower().IndexOf(tbSearch.Text.ToLower()) >= 0)<br />
{<br />
currNode.NodeFont = new Font(tvMain.Font, FontStyle.Bold);<br />
}<br />
else <br />
{<br />
currNode.NodeFont = new Font(tvMain.Font, FontStyle.Regular);<br />
}<br />
markNodes(currNode.Nodes);<br />
}<br />
}
This recursive method is called first with tvMain.Nodes.
I do get bold fonts with this code, but the Items are truncated, it seems that some rendering-size property is set to the width of the item int its original font, since
parts of the next letter are occasionally visible.
Unfortunately, I cannot find this property. Refreshing the tree-view, however, does not change this behaviour.
Any tips?
Thanks in advance.
-- modified at 8:19 Wednesday 18th October, 2006
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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Hi,
thats a flaw/bug of the TreeView. Set the Font property of the TreeView to have a bold style. Then it will calculate the width of each item with it and everything should look correctly.
Robert
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Thanks 
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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Hi,
I made an arraylist and put there 10 txt files. And i got 10 checkboxes.
I want to bind the checkboxes (which are also in an array type of CheckBox)
with the corresponding index of the arraylist.
And after that i want to merge all the files into one file.
This is the code:
private CheckBox[] checkBox = new CheckBox[10];
public void Method()
{
ArrayList fileArray = new ArrayList();
string file1 = File.ReadAllText("file1.txt");
string file2 = File.ReadAllText("file2.txt");
string file3 = File.ReadAllText("file3.txt");
string file4 = File.ReadAllText("file4.txt");
string file5 = File.ReadAllText("file5.txt");
string file6 = File.ReadAllText("file6.txt");
string file7 = File.ReadAllText("file7.txt");
string file8 = File.ReadAllText("file8.txt");
string file9 = File.ReadAllText("file9.txt");
string file10 = File.ReadAllText("file10.txt");
fileArray.Add(file1);
fileArray.Add(file2);
fileArray.Add(file3);
fileArray.Add(file4);
fileArray.Add(file5);
fileArray.Add(file6);
fileArray.Add(file7);
fileArray.Add(file8);
fileArray.Add(file9);
fileArray.Add(file10);
foreach (Control chkBx in this.gbxLanguageLongSound.Controls)
{
if (chkBx is CheckBox)
{
for (int i = 0; i < 10; i++)
{
CheckBox currentCheckBox = (CheckBox)this.checkBox["checkbox" + (i+1)];
if (currentCheckBox.Checked == true)
{
File.WriteAllText("CombinedFiles.txt", filesOfCheckedBoxes);
}
}
}
}
I hope i made myself clear.
Thanks in advance!
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You need to read each file individually, then write them all to the one file. But, you need to look for an override that allows you to specify that you want to append, not overwrite.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Hi Christian,
Every checkbox represents a file. If the checkbox is checked, it should append that file into a new with, together with all the files of the checkboxes that have been checked.
My main problem at this moment is to see whether a checkbox is checked and selects the right file. I thought by declaring an arraylist and fill it with the name of the files and iterate through my checkboxes would do this trick.
[offtopic]
The files contain words. And when a checkbox is checked, it will load that file with specific kind of words.
Those words are going to be displayed for a few seconds and then disappear again. Its a test to improve the reading skills of the kids.
[/offtopic]
Do you know how this can be done Christian?
Thanks in advance!
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How are you showing them ? If just a checkboxlist, then you should create a dictionary of filename to path, assuming you're not wshowing the path. Get the text of the checkbox that is checked and use that to work out the files you want.
Yustme wrote: The files contain words. And when a checkbox is checked, it will load that file with specific kind of words.
Yeah, I guessed that
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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You could do the reading and merging along the lines of this:
private int nr_of_checkboxes = 10;
private List<CheckBox> checkboxes = new List<CheckBox>(nr_of_checkboxes);
private Dictionary<CheckBox, string> checkboxDictionary = new Dictionary<CheckBox, string>(nr_of_checkboxes);
private void InitializeControls()
{
for(int i = 0; i < nr_of_checkboxes; i++)
{
checkboxes.Add(new CheckBox());
checkboxDictionary.Add(checkboxes[i], File.ReadAllText("file" + i + ".txt"));
}
}
public void MergeAndWriteFiles()
{
string merged_strings= "";
foreach(CheckBock chkbox in checkboxes)
{
if(chkbox.Checked)
merged_strings += checkboxDictionary.TryGetValue(chkbox);
}
File.WriteAllText("CombinedFiles.txt", merged_strings);
}
Took it all outta my head here, so there might be spellingerrors or other syntaxerrors, but it should point you to a working solution.
Hope it will be of some help.
-Larantz-
for those about to code, we salute you
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hi All
i wnat to insert a picture in MS ACCESS table (this table field data type is Ole Object). how can i do this with out using make image strming bytes.
Thanks
Pavan Pareta
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I don't see how you can insert a bitmap without streaming it's bytes.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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I have the following problem. Whenever we pass an insert statement against database table, if anything goes wrong the exception can be cathced by using sqlexception parameter. I have done with exception where there is a problem with the primary key because i know the error code it genereates when there is a primary key error. But how can i do the same type of checking when there is an error related to foreign key. Wht is the error code for foreign key related errors.
Is there any other approach for doing this kind of things
Any suggestion is well received. thanx in advance
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In the past, I have been able to get sql errors by looking at the inner exception of the exception that gets thrown in .Net.
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I need to write one small C# application that can convert jpg or bmp image into DICOM medical format, just insert image other settings of DICOM structure can be hard coded. So where I can find any free .NET library or something alike that can help me to do this..
Dejan Paunovic
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There is no free library in .NET. There's one called MyDICOM that isn't too expensive ( that is, if this is a paid project and the library is funded ). There are free libraries in C and perhaps C++, you could try to wrap them.
A DICOM is just your image wrapped in a format to store lots of metadata, so I'd imagine that what you want to do is not too hard. Excepting that I don't believe DICOM will accept a bmp, it will certainly accept standard lossy JPEG, although it's not widely used, any viewer should read it, I expect.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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i have been facing problem about this (datagrid and repeater allow paging), by using microsoft visuo studio 2003, asp.net C# language. got ppl can help me slove this problem by using coding???? thanks^^
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In Datagrid_pageIndexChanged event write
DataGrid1.CurrentPageIndex = e.NewPageIndex;
SelectCustomerservice();
//SelectCustomerservice() is a function which binds data from database to datagrid.You can Write your own binding function there.
Bhanu
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thanks, i already solve my problem.
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I just would like to ask for a sample code that really works on Downloading or Receiving files from the FTP.
I have these lines of code but seems like it don't work.
FtpClientConnection myftpClientConn = null;
public frmDbSynch()
{
InitializeComponent();
}
private void btnDBSynch_Click(object sender, EventArgs e)
{
String[] remoteFileNames = { "myTestFolder", "myFTPFolder" };
String localPath = @"C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Backup";
myftpClientConn.ReceiveFiles(remoteFileNames, localPath, true, true);
}
thanks
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Good day all
I am writing an application that change the settings of a windows service once it is installed. For instance, depending on the options a user chooses, the service must log on as Local System Account or use a particular user account. If the service is set to log on using a user account, I should supply that user's logon credentials.
Is this achievable. If yes, how can I achieve?
Thanks in advance
Kulile --- RSA
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What i need to do is to insert into a dataset. But the same method will insert into different type tables.
For instance, 1 table might have 5 columns, but another might only have 2.
<br />
foreach (DataRow theRow in dataClasses)<br />
{<br />
string className = theRow["Class_Name"].ToString();<br />
object[] nodeSets = new object[9];<br />
<br />
if (tempDataSet.Tables[0].Rows.Count != 0)<br />
{<br />
foreach (DataRow row in tempDataSet.Tables[0].Rows)<br />
{<br />
string CMDB_Version = row.ItemArray[4].ToString();<br />
string Service = row.ItemArray[5].ToString();<br />
string Label = row.ItemArray[6].ToString();<br />
string Managed = row.ItemArray[7].ToString();<br />
string Live = row.ItemArray[8].ToString();<br />
string URL = row.ItemArray[9].ToString();<br />
string Classification = row.ItemArray[10].ToString();<br />
string Grouping = row.ItemArray[11].ToString();<br />
string Profile_Name = row.ItemArray[12].ToString();<br />
<br />
nodeSets[0] = CMDB_Version;<br />
nodeSets[1] = Service;<br />
nodeSets[2] = Label;<br />
nodeSets[3] = Managed;<br />
nodeSets[4] = Live;<br />
nodeSets[5] = URL;<br />
nodeSets[6] = Classification;<br />
nodeSets[7] = Grouping;<br />
nodeSets[8] = Profile_Name;<br />
<br />
theSaveModelDataSet.Tables["New" + className].Rows.Add(nodeSets);<br />
}<br />
}<br />
}<br />
This is what i do at the moment, but this ofcourse will only work for 1 datatable.
So the question is, how do i create a peice of code that will insert the right amount of data into each column.
Regards,
Gareth.
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Hi,
assuming each of the tables where you want to insert data has columns with the same names as the columns in the source table you could do something like this:
foreach (DataRow theRow in dataClasses)
{
string className = theRow["Class_Name"].ToString();
DataTable tableToInsertInto = theSaveModelDataSet.Tables["New" + className];
if (tempDataSet.Tables[0].Rows.Count != 0)
{
foreach (DataRow row in tempDataSet.Tables[0].Rows)
{
DataRow rowToInsert = tableToInsertInto.NewRow();
foreach (DataColumn column in tempDataSet.Tables[0].Column) {
if (tableToInsertInto.Columns.Contains(column.ColumnName)) {
rowToInsert[column.ColumnName] = row[column.ColumnName];
}
}
tableToInsertInto.Rows.Add(rowToInsert);
}
}
}
Robert
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The next question is, how do i do the same, but instead of selecting from a dataset, i get the information from a datarow[]
<br />
DataRow[] newUserServiceRows = graphShared.MainDataSet.Tables["NodeChanges"].Select("stateChanged = " + (int)ServiceModeler.ModelerClass.StateChangeType.Added + " AND className = '" + className + "' AND userCreated = 'y'");<br />
<br />
foreach (DataRow theRow1 in newUserServiceRows)<br />
{<br />
string CMDB_Version = theRow1["Node_Version"].ToString();<br />
string Service = theRow1["Node_Key"].ToString();<br />
string Label = theRow1["Node_Key"].ToString();<br />
string Managed = "";<br />
string Live = "";<br />
string URL = "";<br />
string Classification = "";<br />
string Grouping = "";<br />
string Profile_Name = "";<br />
<br />
nodeSets[0] = CMDB_Version;<br />
nodeSets[1] = Service;<br />
nodeSets[2] = Label;<br />
nodeSets[3] = Managed;<br />
nodeSets[4] = Live;<br />
nodeSets[5] = URL;<br />
nodeSets[6] = Classification;<br />
nodeSets[7] = Grouping;<br />
nodeSets[8] = Profile_Name;<br />
<br />
theSaveModelDataSet.Tables["New" + className].Rows.Add(nodeSets);<br />
}<br />
Regards,
Gareth.
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