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TreeView sort behaviour Add versus AddRange

I have a TreeView and a Buttton on a blank Form. I add three nodes to the TreeView with text "a", "b" and "c" respectively. The TreeView has a TreeViewNodeSorter as shown below which sorts based on node text.
When the button is clicked a new node with text "aa" is added to the TreeView. If Add is called to add the node, then the sort order of the nodes is now "a", "aa", "b", "c" - as I would expect.
If AddRange is called to add the node, the order is "a", "b", "aa", "c". What is the reason for this difference?
public partial class Form1 : Form
{
TreeView treeView = null;
public Form1()
{
InitializeComponent();
treeView = new TreeView();
treeView.TreeViewNodeSorter = new TreeNodeComparer();
treeView.Nodes.Add("a");
treeView.Nodes.Add("b");
treeView.Nodes.Add("c");
Controls.Add(treeView);
Button button = new Button();
button.Text = "Add";
button.Location = new Point(treeView.Location.X, treeView.Location.Y + treeView.Height + 10);
button.Click += button_Click;
Controls.Add(button);
}
void button_Click(object sender, EventArgs e)
{
TreeNode node = new TreeNode();
node.Text = "aa";
//treeView.Nodes.Add(node);
treeView.Nodes.AddRange(new TreeNode[] { node });
}
}
public class TreeNodeComparer : IComparer
{
public int Compare(object x, object y)
{
TreeNode xNode = x as TreeNode;
TreeNode yNode = y as TreeNode;
if (xNode == null || yNode == null)
{
return 0;
}
if (xNode == null)
{
return -1;
}
if (yNode == null)
{
return 1;
}
return xNode.Text.CompareTo(yNode.Text);
}
}

There is an article here that explains things pretty well:
http://geekswithblogs.net/sdorman/archive/2007/09/21/Add-vs.-AddRange.aspx
Basically .AddRange() is the bulk performance version and strives to make things quick. You can call .Sort() on the TreeView afterwards to sort the tree as it should be. (or change the .TreeViewNodeSorter property as mentioned in the article)

Windows forms Treeview refresh issue

I am using a TreeView to show a folderstructure. I dynamically create nodes in the NodeMouseClick event.
But even though the child nodes are populated, they are not visible in the treeview.
However, minimizing the window and maximizing it again solves this issue. Please let me know what I am doing wrong here. Please find below the code that I am using:
private void treeView1_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (treeView1.SelectedNode != null && e.Node.IsExpanded)
{
treeView1.BeginUpdate();
TreeNode node = e.Node;
while (node.Parent != null)
{
node = node.Parent;
}
VcDetailsEntity detailsEntity = connectedVCs.Where(c => c.VCName == node.Name).FirstOrDefault();
detailsEntity.VCBrowserPath = e.Node.Name;
FolderBrowser cosmosBrowser = new FolderBrowser();
List<FolderStreamEntity> folderStreams = folderBrowser.GetVcContentDetails(detailsEntity);
e.Node.Nodes.Clear();
foreach (var stream in folderStreams)
{
if (stream.IsDirectory)
{
TreeNode treeNode = new TreeNode();
treeNode.Name = stream.StreamName;
treeNode.Text = stream.QualifiedName;
treeNode.ToolTipText = stream.QualifiedName;
TreeNode dummyNode = new TreeNode();
treeNode.Nodes.Add((TreeNode)dummyNode.Clone());
TreeNode toUpdate = treeView1.Nodes.Find(e.Node.Name, true).FirstOrDefault();
toUpdate.Nodes.Add((TreeNode)treeNode.Clone());
}
}
treeView1.EndUpdate();
treeView1.Refresh();
}
}
I have tried the suggestions provided by Gnial0id, wpfnoop and LarsTech here below. But no luck. Temporarily I have resolved it by minimizing and maximizing the form programatically.

Well, it's hard to figure out anything from the provided code snippet because many parts are missing. Also I don't quite understand why TreeNode toUpdate = treeView1.Nodes.Find(e.Node.Name, true).FirstOrDefault(); is needed and then why you are cloning the node you just created etc. So I've prepared a sample test which is doing something similar and it does not experience the problem you are describing. Check it out and compare it to your code to find out what is wrong.
using System;
using System.Windows.Forms;
namespace Samples
{
static class Test
{
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
var form = new Form();
var treeView = new TreeView { Dock = DockStyle.Fill, Parent = form };
for (int i = 1; i <= 10; i++)
{
var parent = new TreeNode { Text = "Parent#" + i };
treeView.Nodes.Add(parent);
for (int j = 1; j <= 10; j++)
{
var child = new TreeNode { Text = "Child#" + i };
var dummy = new TreeNode();
child.Nodes.Add(dummy);
parent.Nodes.Add(child);
}
}
var random = new Random();
int addCount = 0;
treeView.NodeMouseClick += (sender, e) =>
{
if (treeView.SelectedNode == e.Node && e.Node.IsExpanded)
{
treeView.BeginUpdate();
e.Node.Nodes.Clear();
int count = random.Next(20) + 1;
for (int i = 1; i <= count; i++)
{
var child = new TreeNode { Text = "AddChild#" + (++addCount) };
var dummy = new TreeNode();
child.Nodes.Add(dummy);
e.Node.Nodes.Add(child);
}
treeView.EndUpdate();
}
};
Application.Run(form);
}
}
}

Adding below code bloc immediately after the code to add a New Node did the magic for me.
treeView1.SelectedNode = NodeToUpdate;
Here the NodeToUpdate is the node where the new child nodes are added.

WPF - Treeview selected item index

I have a treeview panel. In the panel, there are several child nodes. Some of them are only a header.
The way I create the treeview:
treeviewpaneL.Items.Add(art);
art.Items.Add(prt);
some if statement....
TreeViewItem cldhdr = new TreeViewItem() { Header = "ChildNodes:" };
prt.Items.Add(cldhdr);
TreeViewItem cld = new TreeViewItem() .......
........
.....
cldhdr.Items.Add(cld);
Treeview:
Node1
ChildNodes: (This is header only. It appears if child node exists)
Childnode1
Childnode2
childnode3
Node2
Node3
ChildNodes:
Childnode1
Childnode2
childnode3
Node4
Node5
In my treeview there are also images in front of all nodes. It's a code driven treeview. In the xaml part i have only:
<TreeView x:Name="treeviewpaneL" SelectedItemChanged="treeviewpaneL_SelectedItemChanged" >
</TreeView>
What I want to do is when I click on any of the treeview items, I need to get its index number.
My code is:
private void treeviewpaneL_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
int index = 0;
ItemsControl parent = ItemsControl.ItemsControlFromItemContainer(prt);
foreach (var _item in parent.Items)
{
if (_item == treeviewpaneL.SelectedItem)
{
selectedNodeIndex = index;
MessageBox.Show(selectedNodeIndex.ToString());
break;
}
index++;
}
}
With the code above, I can get the index of Node1,Node2,Node3, Node4 and Node5 as 0,1,2,3,4
What I want is to get the index numbers as:
Node1 = 0
Childnode1 = 1 (Skipping the header)
Childnode2 = 2
Childnode3 = 3
Node2 = 4
....
....
....
What am I missing?

Here is the solution, first of all your "MyTreeViewItem"
public class MyTreeViewItem :TreeViewItem
{
private int _index;
public int Index
{
get { return _index; }
set { _index = value; }
}
public MyTreeViewItem() : base()
{
}
}
and usage;
MyTreeViewItem art = new MyTreeViewItem();
art.Header = "Node1";
art.Index = 1;
MyTreeViewItem prt = new MyTreeViewItem();
prt.Header = "Child1";
prt.Index = 2;
art.Items.Add(prt);
treeviewpaneL.Items.Add(art);
and event;
private void treeviewpaneL_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
MyTreeViewItem selectedItem = e.NewValue as MyTreeViewItem;
if (selectedItem != null)
{
MessageBox.Show("" + selectedItem.Index);
}
}

To get the index of the currently selected item:
MyTreeView.Items.IndexOf(MyTreeView.SelectedItem);

Adding Child Nodes to a Treeview from DataTable (C# Windows Forms)

I'm having a hard time trying to get a Treeview to display child notes.
I have a DataTable which is filled with Data from a query.
The table is something like this.
| ParentOT | ChildOT
-------------------
1 | 2
1 | 3
1 | 4
4 | 5
5 | 6
now, what I need is to order this data in a TreeView.
The result must be something like this (using this same table)
1
|
--2
|
--3
|
--4
|
--5
|
--6
I tried to this on Windows Forms and the only thing I can get is the tree to show only 1 set of childs. like this
1
|
--2
|
--3
|
--4
|
--5
|
5
|
--6
I tried to do it like this:
DataTable arbolSub = mssql_cnn.ejecutarSqlSelect(q2);
//Metodo 2: muestra las ot correctamente pero no muestra mas detalle de subOT.
if (trvOTHs.Nodes.Count > 0)
{
trvOTHs.Nodes.Clear();
}
trvOTHs.BeginUpdate();
if (arb.Rows.Count > 0)
{
string otPadre = arb.Rows[0][0].ToString();
int nivel = 0;
trvOTHs.Nodes.Add(arbolSub.Rows[0]["OT Padre"].ToString());
for (int i = 0; i < arbolSub.Rows.Count; i++)
{
//trvOTHs.Nodes.Add(arbolSub.Rows[0]["OT Padre"].ToString());
if (arbolSub.Rows[i]["OT Padre"].ToString() == otPadre)
{
if (trvOTHs.Nodes[nivel].Text == otPadre)
{
trvOTHs.Nodes[nivel].Nodes.Add(arbolSub.Rows[i]["OT Hija"].ToString());
}
}
else
{
otPadre = arbolSub.Rows[i+1]["OT Padre"].ToString();
TreeNode nodo = new TreeNode(otPadre.ToString());
trvOTHs.Nodes.Add(nodo);
nivel++;
}
}
trvOTHs.Nodes[0].Remove();
trvOTHs.ExpandAll();
}
trvOTHs.EndUpdate();
where trvOTHs is a TreeView.
Please Help! Thanks
EDIT: Thanks for the reply. I finally worked around this,using a idea given by a friend and using something like the suggested solution by #Mohammad abumazen.
I ended up using two methods recursively:
private TreeView cargarOtPadres(TreeView trv, int otPadre, DataTable datos)
{
if (datos.Rows.Count > 0)
{
foreach (DataRow dr in datos.Select("OTPadre='"+ otPadre+"'"))
{
TreeNode nodoPadre = new TreeNode();
nodoPadre.Text = dr["OTPadre"].ToString();
trv.Nodes.Add(nodoPadre);
cargarSubOts(ref nodoPadre, int.Parse(dr["OTHija"].ToString()), datos);
}
}
return trv;
}
private void cargarSubOts(ref TreeNode nodoPadre, int otPadre, DataTable datos)
{
DataRow[] otHijas = datos.Select("OTPadre='" + otPadre +"'");
foreach (DataRow drow in otHijas)
{
TreeNode hija = new TreeNode();
hija.Text = drow["OTHija"].ToString();
nodoPadre.Nodes.Add(hija);
cargarSubOts(ref hija, int.Parse(drow["OTHija"].ToString()), datos);
}
}
This did it. I leave it here in case anyone needs it. Thanks again.

The main issue in your code that you are not looking for the child parent in the tree view to add it under , you add them all under main parent.
i made some changes to your code hopefully it work straight forward or with minor changes at your side:
if (arb.Rows.Count > 0)
{
TreeNode MainNode = new TreeNode();
string otPadre = arb.Rows[0][0].ToString();
int nivel = 0;
MainNode.Text = otPadre;
trvOTHs.Nodes.Add(MainNode);
for (int i = 0; i < arbolSub.Rows.Count; i++)
{
TreeNode child = new TreeNode();
child.Text = row["OT Hija"].ToString();
if (arbolSub.Rows[i]["OT Padre"].ToString() == otPadre)
{
MainNode.Nodes.Add(child);
}
else
{
FindParent(MainNode, row["OT Padre"].ToString(), child);
}
}
trvOTHs.ExpandAll();
}
this function to find the parent node :
private void FindParent(TreeNode ParentNode, string Parent, TreeNode ChildNode)
{
foreach (TreeNode node in ParentNode.Nodes)
{
if (node.Text.ToString() == Parent)
{
node.Nodes.Add(ChildNode);
}
else
{
FindParent(node, Parent, ChildNode);
}
}
}

I would do something like this, You should consider using Dictionary and HashSet for maximum performance:
//use this extension method for convenience
public static class TreeViewExtension {
public static void LoadFromDataTable(this TreeView tv, DataTable dt){
var parentNodes = dt.AsEnumerable()
.GroupBy(row => (string)row[0])
.ToDictionary(g=> g.Key, value=> value.Select(x=> (string)x[1]));
Stack<KeyValuePair<TreeNode,IEnumerable<string>>> lookIn = new Stack<KeyValuePair<TreeNode,IEnumerable<string>>>();
HashSet<string> removedKeys = new HashSet<string>();
foreach (var node in parentNodes) {
if (removedKeys.Contains(node.Key)) continue;
TreeNode tNode = new TreeNode(node.Key);
lookIn.Push(new KeyValuePair<TreeNode,IEnumerable<string>>(tNode,node.Value));
while (lookIn.Count > 0) {
var nodes = lookIn.Pop();
foreach (var n in nodes.Value) {
IEnumerable<string> children;
TreeNode childNode = new TreeNode(n);
nodes.Key.Nodes.Add(childNode);
if (parentNodes.TryGetValue(n, out children)) {
lookIn.Push(new KeyValuePair<TreeNode,IEnumerable<string>>(childNode,children));
removedKeys.Add(n);
}
}
}
tv.Nodes.Add(tNode);
}
}
}
//usage
treeView1.LoadFromDataTable(yourDataTable);
NOTE the input DataTable should contain data as you posted in your question. There is no need for other kinds of Sub-DataTable.

Thanks for the reply. I finally worked around this,using a idea given by a friend and using something like the suggested solution by #Mohammad abumazen.
I ended up using two methods recursively:
private TreeView cargarOtPadres(TreeView trv, int otPadre, DataTable datos)
{
if (datos.Rows.Count > 0)
{
foreach (DataRow dr in datos.Select("OTPadre='"+ otPadre+"'"))
{
TreeNode nodoPadre = new TreeNode();
nodoPadre.Text = dr["OTPadre"].ToString();
trv.Nodes.Add(nodoPadre);
cargarSubOts(ref nodoPadre, int.Parse(dr["OTHija"].ToString()), datos);
}
}
return trv;
}
private void cargarSubOts(ref TreeNode nodoPadre, int otPadre, DataTable datos)
{
DataRow[] otHijas = datos.Select("OTPadre='" + otPadre +"'");
foreach (DataRow drow in otHijas)
{
TreeNode hija = new TreeNode();
hija.Text = drow["OTHija"].ToString();
nodoPadre.Nodes.Add(hija);
cargarSubOts(ref hija, int.Parse(drow["OTHija"].ToString()), datos);
}
}
This did it. I leave it here in case anyone needs it. Thanks again.

How do I edit the name of an item in a CheckedListBox?

I have a CheckedListBox that has X number of items. These items are placed there at runtime. These items are supposed to represent reports that can be displayed in the DataGridView. What I need to do now is display the record count for each report in parenthesis right next to the report name. I tried, not for too long, to edit the actual name of the item but couldn't find out how to do it. So then, I brute forced it. Saved the items to an array, cleared the items, appended the record counts to each item in the array, created new items. Well, this has caused issues because now it's not retaining my checks and the reason why is because whenever I generate the reports, I clear the items and recreate them. Well, rather than doing another foreach loop to save the checked status, does anyone know of a way to change the text of existing items in a CheckedListBox?
Here is the code I currently have:
In the MainForm.Designer.cs:
this.clbReports.Items.AddRange(new object[] {
"Report 1",
"Report 2",
"Report 3",
"Report 4",
"Report 5",
"Report 6",
"Report 7",
"Report 8",
"Report 9",
"Report 10",
"Report 11"});
And it looks like:
And I want it to look like (but there won't all be 0's):
Here is the SelectedIndexChanged function:
private void clbReports_SelectedIndexChanged(object sender, EventArgs e)
{
string strCheckBox = clbReports.SelectedItem.ToString();
bool bShowAllIsChecked = clbReports.GetItemChecked(clbReports.FindString("Show All Error Reports"));
bool bSelected = clbReports.GetItemChecked(clbReports.FindString(strCheckBox));
int nIndex = -1;
if (strCheckBox.Contains("Show All Error Reports"))
{
foreach (string str in _strReports)
{
if (!str.Contains("Show All Error Reports") && !str.Contains("Show Tagged Records"))
{
nIndex = clbReports.FindString(str);
if (nIndex > -1)
{
clbReports.SetItemChecked(nIndex, bSelected);
}
}
}
}
else
{
if (strCheckBox.Contains("Show All Error Reports") || bShowAllIsChecked)
{
foreach (string str in _strReports)
{
nIndex = clbReports.FindString(str);
if (nIndex > -1)
{
clbReports.SetItemChecked(nIndex, false);
}
}
}
nIndex = clbReports.FindString(strCheckBox);
if (nIndex > -1)
{
clbReports.SetItemChecked(nIndex, bShowAllIsChecked ? true : bSelected);
}
}
string[] strCheckedItems = new string[clbReports.CheckedItems.Count];
clbReports.CheckedItems.CopyTo(strCheckedItems, 0);
List<string> checkBoxReportFilter = new List<string>();
foreach (ReportRecord obj in this._lstReportRecords)
{
foreach (string str in strCheckedItems)
{
if (str.Contains(obj.Description))
{
checkBoxReportFilter.Add(obj.PartID.ToString());
}
}
}
try
{
if (checkBoxReportFilter.Count == 0 && clbReports.CheckedItems.Count > 0)
{
throw new NullReferenceException();
}
_strReportFilter = String.Join(",", checkBoxReportFilter.ToArray());
}
catch (NullReferenceException)
{
_strReportFilter = "-1";
}
generateReport();
}
And here is the code where I am clearing the items, getting the report counts and creating the new items.
_lstReportRecords = _dataController.ReportList;
bool[] bChecked = new bool[clbReports.Items.Count];
int nCounter = 0;
foreach (string str in _strReports)
{
foreach (string str2 in clbReports.SelectedItems)
{
bChecked[nCounter] = str2.Contains(str);
}
nCounter++;
}
clbReports.Items.Clear();
nCounter = 0;
foreach (string str in _strReports)
{
int nCount = _lstReportRecords.Where<ReportRecord>(delegate(ReportRecord rr) {
return rr.Description == str;
}).Count();
string newReport = str + " (" + nCount + ")";
clbReports.Items.Add(newReport);
clbReports.SetItemChecked(nCounter, bChecked[nCounter]);
nCounter++;
}
Please tell me there is an easier way to do this. I tried doing foreach loops through the clbReports.Items but it wants me to cast it to a string (errored on me when trying to cast to a CheckBox) so I couldn't change the value. And even if I could cast it to a CheckBox, I have a feeling it will give me the error that Enumeration has failed because the list has been changed (or however they word it). Any and all help is welcome. Thanks.
Edit: Please know that the Report X are just so that the actual report names aren't displayed to keep it generic. However, in the code, I just copied and pasted so the Show All Error Reports and Show All Tagged Records are reports I need to check.

The right ( == most simple and most direct) answer and solution is:
this.clbReports.Items[nIndex] = "new text of the item"
yes, those items are of type "object". No, nobody minds that, string is an object too ;)

If I were you, I'd try to give the INotifyPropertyChanged Interface a go.
You Shouldn't mess with events unless necessary. this will mean you can't use the designer to create the items, but as far as I've understood, it's a runtime-modified list anyway...
In detail:
• Create A Class (e.g.'Foo') that Implements INotifyPropertyChanged (Basically this will tell any listener that the text property has changed). This class will hold the names of all entries.
• create an ObservableCollection and bind your CheckedListBox to that Collection. In WinForms you will have to create a DataBindingSource and plug your Collection to one end and the ComboBox to the other end.
• Any change made to the collection will be visible in the control.
HTH
Sebi

In order to change the items in a ListBox (or a CheckedListBox), you should change these items' ToString() result.
The easiest solution would be to create a "Holder" class, which has a reference to the report it represents. Then the Holder class' ToString() method should be something like this:
public override string ToString()
{
return String.Format("{0} ({1})", BaseStr, MyReport.RecordCount);
}
If you change MyReport.RecordCount somehow (because a report's record count changes), you can just call clbReports.Refresh(), and it'll automatically show the new value.
I think this way you don't even need the temporary array solution in the second code block; however, I'd like to suggest an alternative way of getting the item's checked state.
You can iterate through the clbReports.CheckedIndices, and fill your bChecked array with true values only for indices in that array.

Well, due to time constraints I tried something else. I went with a ListView where CheckBoxes = true and View = List. I also removed Show All Error Reports and Show Tagged Records to checkboxes outside of the list. This made it a lot easier to do the functions I wanted. Here is the new code.
MainForm.Designer.cs
//
// cbTaggedRecords
//
this.cbTaggedRecords.AutoSize = true;
this.cbTaggedRecords.Location = new System.Drawing.Point(151, 9);
this.cbTaggedRecords.Name = "cbTaggedRecords";
this.cbTaggedRecords.Size = new System.Drawing.Size(106, 17);
this.cbTaggedRecords.TabIndex = 3;
this.cbTaggedRecords.Text = "Tagged Records";
this.cbTaggedRecords.UseVisualStyleBackColor = true;
this.cbTaggedRecords.CheckedChanged += new System.EventHandler(this.ShowTaggedRecords_CheckChanged);
//
// cbAllErrorReports
//
this.cbAllErrorReports.AutoSize = true;
this.cbAllErrorReports.Location = new System.Drawing.Point(6, 9);
this.cbAllErrorReports.Name = "cbAllErrorReports";
this.cbAllErrorReports.Size = new System.Drawing.Size(102, 17);
this.cbAllErrorReports.TabIndex = 2;
this.cbAllErrorReports.Text = "All Error Reports";
this.cbAllErrorReports.UseVisualStyleBackColor = true;
this.cbAllErrorReports.CheckedChanged += new System.EventHandler(this.ShowAllErrorReports_CheckChanged);
//
// listView1
//
this.listView1.CheckBoxes = true;
listViewItem1.StateImageIndex = 0;
listViewItem2.StateImageIndex = 0;
listViewItem3.StateImageIndex = 0;
listViewItem4.StateImageIndex = 0;
listViewItem5.StateImageIndex = 0;
listViewItem6.StateImageIndex = 0;
listViewItem7.StateImageIndex = 0;
listViewItem8.StateImageIndex = 0;
listViewItem9.StateImageIndex = 0;
this.listView1.Items.AddRange(new System.Windows.Forms.ListViewItem[] {
listViewItem1,
listViewItem2,
listViewItem3,
listViewItem4,
listViewItem5,
listViewItem6,
listViewItem7,
listViewItem8,
listViewItem9});
this.listView1.Location = new System.Drawing.Point(6, 29);
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(281, 295);
this.listView1.TabIndex = 1;
this.listView1.UseCompatibleStateImageBehavior = false;
this.listView1.View = System.Windows.Forms.View.List;
this.listView1.ItemChecked += new System.Windows.Forms.ItemCheckedEventHandler(this.listView_ItemChecked);
MainForm.cs
private void listView_ItemChecked(object sender, ItemCheckedEventArgs e)
{
if (e != null)
{
int nLength = e.Item.Text.IndexOf("(") - 1;
string strReport = nLength <= 0 ? e.Item.Text : e.Item.Text.Substring(0, nLength);
if (e.Item.Checked)
{
_lstReportFilter.Add(strReport);
}
else
{
_lstReportFilter.Remove(strReport);
}
}
List<string> checkBoxReportFilter = new List<string>();
foreach (ReportRecord obj in this._lstReportRecords)
{
foreach (string str in _lstReportFilter)
{
if (str.ToLower().Contains(obj.Description.ToLower()))
{
checkBoxReportFilter.Add(obj.PartID.ToString());
}
}
}
try
{
if (checkBoxReportFilter.Count == 0 && listView1.CheckedItems.Count > 0)
{
throw new NullReferenceException();
}
_strReportFilter = String.Join(",", checkBoxReportFilter.ToArray());
}
catch (NullReferenceException)
{
_strReportFilter = "-1";
}
if (!bShowAll)
{
generateReport();
}
}
private void ShowAllErrorReports_CheckChanged(object sender, EventArgs e)
{
bShowAll = true;
foreach (ListViewItem lvi in listView1.Items)
{
lvi.Checked = ((CheckBox)sender).Checked;
}
_lstReportFilter.Clear();
bShowAll = false;
generateReport();
}
private void ShowTaggedRecords_CheckChanged(object sender, EventArgs e)
{
bool bChecked = ((CheckBox)sender).Checked;
if (bChecked)
{
if (!_lstReportFilter.Contains("Show Tagged Records"))
{
_lstReportFilter.Add("Show Tagged Records");
}
}
else
{
_lstReportFilter.Remove("Show Tagged Records");
}
listView_ItemChecked(null, null);
}
Code to add counts to CheckBoxes
_lstReportRecords = _dataController.ReportList;
int nTotalCount = 0;
foreach (ListViewItem lvi in listView1.Items)
{
int nCount = _lstReportRecords.Where(rr => lvi.Text.Contains(rr.Description)).Count();
nTotalCount += nCount;
lvi.Text = (lvi.Text.Contains("(") ? lvi.Text.Substring(0, lvi.Text.IndexOf("(") + 1) : lvi.Text + " (") + nCount.ToString() + ")";
}
cbAllErrorReports.Text = (cbAllErrorReports.Text.Contains("(") ? cbAllErrorReports.Text.Substring(0, cbAllErrorReports.Text.IndexOf("(") + 1) : cbAllErrorReports.Text + " (") + nTotalCount.ToString() + ")";
int nTaggedCount = _lstReportRecords.Where(rr => rr.Description.Contains("Tagged")).Count();
cbTaggedRecords.Text = (cbTaggedRecords.Text.Contains("(") ? cbTaggedRecords.Text.Substring(0, cbTaggedRecords.Text.IndexOf("(") + 1) : cbTaggedRecords.Text + " (") + nTaggedCount.ToString() + ")";
Thank you all for your help and ideas.