Is there a way to stop dropping before and after droptarget?

Is there a way to stop dropping before and after droptarget?

I am trying to implement drag and drop using the silverlight toolkit treeview control. If I move slightly above the treeviewitem then dropping will cause to drop before the treeview item, if I move slightly below the treeviewitem then dropping will place after the treeviewitem.

The required behavior, however would be to all the time drop on the treeview item and not before and after.

Is there a way to disable the dragging and dropping of before or after the item?

Answers & Comments...

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Eliminate file extension with GetFileNameWithoutExtension

Eliminate file extension with GetFileNameWithoutExtension

I used this method Path.GetFileNameWithoutExtension to eleminate file extension from string like from "abc:file.jpg" to "abc:file" but when i do this

Path.GetFileNameWithoutExtension("abc:file.jpg")  

it shows the result as "file". It also removed "abc:". Why has it happened ? Is there any better way to get this problem solved?

Answers & Comments...

Answer: 1

The char ":" (colon) is not legal as part of a filename. It interpret it as a path divider so it will remove it and anything before it when you request only the filename.

Here is one way you can check if the filename is valid:

This function will return true for valid filenames, and false for invalid ones:

private bool IsValidFilename(string filename) {     //     //-- Get array with invalid chars for filenames     //     char[] illegalChars = Path.GetInvalidFileNameChars;     //     //-- Go through each char in filename and check if the char is     //   in our array of invalid chars     //     foreach (char c in filename) {         if (illegalChars.Contains(c))             return false;     }     //     //-- All are valid, return true     //     return true;  } 

If the above function returns false you can use the next function to format the filename and remove the illegal chars (there exists os-functions to do this IIRC, but it's a simple exercise to do manually):

private string MakeFilenameValid(string filename, char replacment) {     //     //-- Get array with invalid chars for filenames     //     char[] illegalChars = Path.GetInvalidFileNameChars;     StringBuilder validFilename = new StringBuilder();     //     //-- Go through each char in filename and check if the char is     //   in our array of invalid chars. If it is, replace it     //     foreach (char c in filename) {         if (illegalChars.Contains(c)) {             validFilename.Append(replacment);         } else {             validFilename.Append(c);         }     }     //     //-- Return filename     //     return validFilename.ToString;  } 

Example of usage:

private void Button1_Click(System.Object sender, System.EventArgs e) {     string filename = "abc:file.jpg";      if (!IsValidFilename(filename)) {         filename = MakeFilenameValid(filename, "_");     }      MessageBox.Show(filename);  } 

In VB:

Private Sub Button1_Click(sender As System.Object, _                           e As System.EventArgs) Handles Button1.Click      Dim filename As String = "abc:file.jpg"      If Not IsValidFilename(filename) Then         filename = MakeFilenameValid(filename, "_")     End If      MessageBox.Show(filename)  End Sub Private Function IsValidFilename(filename As String) As Boolean     '     '-- Get array with invalid chars for filenames     '     Dim illegalChars() As Char = Path.GetInvalidFileNameChars     '     '-- Go through each char in filename and check if the char is     '   in our array of invalid chars     '     For Each c As Char In filename         If illegalChars.Contains(c) Then Return False     Next     '     '-- All are valid, return true     '     Return True  End Function Private Function MakeFilenameValid(filename As String, replacment As Char) As String     '     '-- Get array with invalid chars for filenames     '     Dim illegalChars() As Char = Path.GetInvalidFileNameChars     Dim validFilename As New StringBuilder     '     '-- Go through each char in filename and check if the char is     '   in our array of invalid chars. If it is, replace it     '     For Each c As Char In filename         If illegalChars.Contains(c) Then             validFilename.Append(replacment)         Else             validFilename.Append(c)         End If     Next     '     '-- Return filename     '     Return validFilename.ToString  End Function 

by : Abdias Softwarehttp://stackoverflow.com/users/1693593

Answer: 2

It's better to name your files properly like abcfile.jpg or abc_file.jpg in the first place. then you'll be able to get complete file name.

by : Shahzad Latifhttp://stackoverflow.com/users/218065

Answer: 3

Try this way..

Path.Combine(System.IO.Path.GetDirectoryName(path), System.IO.Path.GetFileNameWithoutExtension(path)); 

by : Sidharth Pentahttp://stackoverflow.com/users/1567851

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