C# Application program UNIT III

UNIT III BUILDING WINDOWS APPLICATION ACCESSING DATA IN ADO.NET

Program Flow Fill Directory & Sub Directory Create an order list of all selected file used by both copy and delete button GetCheckedFile and GetParentString used by the list file Explanation for each button Get the full path of the chosen directory – Target_AfterSelect Mark each node below the current one with current value of checked – source_Aftercheck Recursively set to clear - SetCheck

TREE VIEW CONTROL SET THE CHECK BOX CONTROL OF LEFT (SOURCE) TREEVIEW TO TRUE AND OTHER AS FALSE

FILE COMPARE CLASS public frmfilecopier ( { InitializeComponent(); FillDirectoryTree(tvsource, true); FillDirectoryTree(tvtarget, false); } public class FileComparer : IComparer<FileInfo> { public int Compare(FileInfo file1, FileInfo file2) { if (file1.Length > file2.Length) { return -1; } if (file1.Length < file2.Length) { return 1; } return 0; } public bool Equals(FileInfo x, FileInfo y) { throw new NotImplementedException(); } public int GetHashCode(FileInfo x) { throw new NotImplementedException(); } }

FILL_DIRECTORY TREE private void FillDirectoryTree(TreeView tv, bool isSource) { tv.Nodes.Clear(); string[] strDrives = Environment.GetLogicalDrives(); foreach ( string rootDirectoryName in strDrives ) { try { DirectoryInfo dir = new DirectoryInfo( rootDirectoryName ); dir.GetDirectories(); TreeNode ndRoot = new TreeNode( rootDirectoryName ); tv.Nodes.Add( ndRoot ); if(isSource) { GetSubDirectoryNodes( ndRoot,ndRoot.Text,true,1); } else { GetSubDirectoryNodes( ndRoot,ndRoot.Text,false,1); } } catch { } Application.DoEvents(); } }

SUBDIRECTORY private void GetSubDirectoryNodes(TreeNode parentNode, string fullName, bool getFileNames, int level) { DirectoryInfo dir = new DirectoryInfo(fullName); DirectoryInfo[] dirSubs = dir.GetDirectories(); foreach (DirectoryInfo dirSub in dirSubs) { if ((dirSub.Attributes & FileAttributes.Hidden) != 0) { continue; } TreeNode subnode = new TreeNode(dirSub.Name); parentNode.Nodes.Add(subnode); if (level < MaxLevel) { GetSubDirectoryNodes(subnode, dirSub.FullName, getFileNames, level + 1); } } if (getFileNames) { FileInfo[] files = dir.GetFiles(); foreach (FileInfo file in files) { TreeNode filenode = new TreeNode(file.Name); parentNode.Nodes.Add(filenode); } } }

UNIT IV BUILDING WEB APPLICATION

COPY BUTTON private void Btncopy_Click(object sender, EventArgs e) { List<FileInfo> filelist = Getfilelist(); foreach (FileInfo file in filelist) { try { lblstatus.Text = "Copying" + txtTargetdir.Text + "\\" + file.Name + "..."; Application.DoEvents(); file.CopyTo(txtTargetdir.Text + "\\" + file.Name, chkoverwrite.Checked); } catch (Exception ex) { MessageBox.Show(ex.Message); } } lblstatus.Text = "Done"; Application.DoEvents(); }

IMPLEMENTIN COPY private List<FileInfo> Getfilelist() { List<string> fileNames = new List<string>(); foreach (TreeNode thenode in tvsource.Nodes) { GetCheckedFiles(thenode, fileNames); } List<FileInfo> fileList = new List<FileInfo>(); foreach(string fileName in fileNames) { FileInfo file = new FileInfo(fileName); if(file.Exists) { fileList.Add(file); } } IComparer<FileInfo> Comparer = (IComparer<FileInfo>) new FileComparer(); fileList.Sort(Comparer); return fileList; }

IMPLEMENTIN COPY 2 private void GetCheckedFiles(TreeNode node, List<string> filenames ) { if(node.Nodes.Count == 0) { if(node.Checked) { string fullpath = GetParentstring(node); filenames.Add(fullpath); } } else{ foreach (TreeNode n in node.Nodes) { GetCheckedFiles(n,filenames); } } } private string GetParentstring(TreeNode node) { if(node.Parent == null) { return node.Text; } else { return GetParentstring(node.Parent) + node.Text + (node.Nodes.Count == 0 ? "":"\\"); } }

DELETE BUTTON private void btndelete_Click(object sender, EventArgs e) { System.Windows.Forms.DialogResult result = MessageBox.Show("Are u quit sure?","Delete files",MessageBoxButtons.OKCancel,MessageBoxIcon.Exclamation,MessageBoxDefaultButton.Button2); if(result == System.Windows.Forms.DialogResult.OK) { List<FileInfo> filenames = Getfilelist(); foreach(FileInfo file in filenames) { try{ lblstatus.Text = "Deleting" + file.Name + "..."; Application.DoEvents(); file.Delete(); } catch(Exception ex) { MessageBox.Show(ex.Message); } lblstatus.Text = "Done"; Application.DoEvents(); } } }

CLEAR BUTTON private void btnclear_Click(object sender, EventArgs e) { foreach(TreeNode node in tvsource.Nodes) { SetCheck(node,false); } }

CANCEL BUTTON private void btncancle_Click(object sender,EventArgs e) { Application.Exit(); }

TREEVIEW private void tvtarget_AfterSelect(object sender,System.Windows.Forms.TreeViewEventArgs e) { string theFullpath = GetParentstring(e.Node); if(theFullpath.EndsWith("\\")) { theFullpath = theFullpath.Substring(0,theFullpath.Length-1); } txtTargetdir.Text =theFullpath; } private void tvsource_AfterCheck(object sender, System.Windows.Forms.TreeViewEventArgs e) { if (e.Action != TreeViewAction.Unknown) { SetCheck(e.Node, e.Node.Checked); } } private void SetCheck(TreeNode node, bool check) { foreach (TreeNode n in node.Nodes) { n.Checked = check; if (n.Nodes.Count != 0) { SetCheck(n, check); } } }

Cont.. private void tvExpand(object sender, TreeViewCancelEventArgs e) { TreeView tv = (TreeView)sender; bool getFiles = tv == tvsource; TreeNode currentnode = e.Node; string fullName = currentnode.FullPath; currentnode.Nodes.Clear(); GetSubDirectoryNodes(currentnode, fullName, getFiles, 1); } private void tvsource_AfterSelect(object sender, TreeViewEventArgs e) { } private void chkoverwrite_CheckedChanged(object sender, EventArgs e) { } } }

SELECTING THE DATA GRID VIEW DATA GRID VIEW

RENAME FROM DEFAULT TO HELLOWORLD

IN THE ASPX CHANGE THE INHERIT ATTRIBUTE

WHILE RUN CONFIRM THIS MESSAGE

C# Application program UNIT III

More Related Content

What's hot

Viewers also liked

Similar to C# Application program UNIT III

Recently uploaded

C# Application program UNIT III