I managed to create a TreeView method for NodeMouseClick and CursorChanged events.
private void Node_Selection_Action(object sender, TreeNodeMouseClickEventArgs e)
{
// my action code here...
}
private void TvwPanel_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
Node_Selection_Action(sender, e);
}
However, I am getting an error on e parameter when I applied the method to the CursorChanged:
private void TvwPanel_CursorChanged(object sender, EventArgs e)
{
Node_Selection_Action(sender, e); //error on `e` here
}
I supposed this is due to the parameter EventArgs that is not compatible with my method parameter TreeNodeMouseClickEventArgs.
Is there any workaround that I could use to trigger the CursorChanged event with my method?
UPDATE 1:
As requested, here's the bunch of code for the Node_Selection_Action method:
private void Node_Selection_Action(object sender, TreeNodeMouseClickEventArgs e)
{
TvwPanel.SelectedNode = e.Node;
if (Convert.ToString(e.Node.Tag) == "a") //profile Convert.ToInt16()
{
TsmNewPr.Enabled = false;
TsmNewDb.Visible = false;
TsmNewCo.Visible = false;
TsmNewTk.Visible = false;
TsmNewTkCred.Visible = false;
TsmNewLg.Visible = false;
TsmEditPr.Enabled = true;
TsmEditDb.Visible = false;
TsmEditCo.Visible = false;
TsmEditTk.Visible = false;
TsmEditTkCred.Visible = false;
TsmEditLg.Visible = false;
TsmDeletePr.Enabled = true;
TsmDeleteDb.Visible = false;
TsmDeleteCo.Visible = false;
TsmDeleteTk.Visible = false;
TsmDeleteTkCred.Visible = false;
TsmDeleteLg.Visible = false;
TsmRunTk.Enabled = false;
TsmRefreshLg.Enabled = false;
TsmHelpAll.Enabled = true;
}
else if (Convert.ToString(e.Node.Tag) == "b") //database
{
TsmNewPr.Visible = false;
TsmNewDb.Enabled = true;
// arbitrary control if database already exists. If exists disable, otherwise enable.
#region TsmNewDb.Enabled (true/false)
selNodeParentName = TvwPanel.SelectedNode.Parent.Text;
selNodeName = TvwPanel.SelectedNode.Text;
Save_Treeview_To_Xml xcf = new Save_Treeview_To_Xml();
XElement xmlComplete = XElement.Load(xcf.xmlProfileComplete);
IEnumerable<XElement> profile =
from ep in xmlComplete.Elements("node")
where (string)ep.Attribute("text") == selNodeParentName
select ep;
foreach (XElement epi in profile)
{
IEnumerable<XElement> profNode =
from en in epi.Elements("node")
where (string)en.Attribute("text") == selNodeName
select en;
foreach (XElement enc in profNode)
{
// get the attribute texts
var childrenTexts = enc.Elements("node").Attributes("text");
foreach (var childText in childrenTexts)
{
if (childText.Value != "Type" || childText.Value != "Name" || childText.Value != "Connection")
{
// enable TsmNewDb ContextMenu button if does not exists yet
TsmNewDb.Enabled = false;
}
}
// initialize the attribute tags to null
string TypeTag = null;
string NameTag = null;
string ConnTag = null;
// get the attribute tags
var childrenTags = enc.Elements("node").Attributes("tag");
int count = 0;
// get db details for showing on the right panel of the main form specified below
foreach (var childTag in childrenTags)
{
if (count == 0)
{
TypeTag = childTag.Value;
}
else if (count == 1)
{
NameTag = childTag.Value;
}
else if (count == 2)
{
ConnTag = childTag.Value;
}
count++;
}
// check if database exists
if (db.Databases_Exists(ConnTag) == true)
{
// convert the password to "*" for display purposes
string s = ConnTag;
int start = s.LastIndexOf("pwd=") + "pwd=".Length;
int end = s.IndexOf(";", start);
string result = s.Substring(start, end - start);
s = s.Replace(result, "********");
ConnTag = s;
// transfer data FrmDatabase form to main form tabcontrol panel
LblDbTypeDef.Text = TypeTag;
LblDbNameDef.Text = NameTag;
LblDbConnDef.Text = ConnTag;
// make the main tabcontrol panel visible to true
TbcMain.SelectedIndex = 0;
TbcMain.Visible = true;
}
else
{
// make the main tabcontrol panel visible to false
TbcMain.SelectedIndex = 0;
TbcMain.Visible = false;
}
}
}
#endregion
TsmNewCo.Visible = false;
TsmNewTk.Visible = false;
TsmNewTkCred.Visible = false;
TsmNewLg.Visible = false;
TsmEditPr.Visible = false;
TsmEditDb.Enabled = true;
TsmEditCo.Visible = false;
TsmEditTk.Visible = false;
TsmEditTkCred.Visible = false;
TsmEditLg.Visible = false;
TsmDeletePr.Visible = false;
TsmDeleteDb.Enabled = true;
TsmDeleteCo.Visible = false;
TsmDeleteTk.Visible = false;
TsmDeleteTkCred.Visible = false;
TsmDeleteLg.Visible = false;
TsmRunTk.Enabled = false;
TsmRefreshLg.Enabled = false;
TsmHelpAll.Enabled = true;
}
else if (Convert.ToString(e.Node.Tag) == "c") //company file
{
TsmNewPr.Visible = false;
TsmNewDb.Visible = false;
TsmNewCo.Enabled = true;
// arbitrary control if company file already exists. If exists, disable, otherwise enable.
#region TsmNewCo.Enabled (true/false)
selNodeParentName = TvwPanel.SelectedNode.Parent.Text;
selNodeName = TvwPanel.SelectedNode.Text;
Save_Treeview_To_Xml xcf = new Save_Treeview_To_Xml();
XElement xmlComplete = XElement.Load(xcf.xmlProfileComplete);
IEnumerable<XElement> profile =
from ep in xmlComplete.Elements("node")
where (string)ep.Attribute("text") == selNodeParentName
select ep;
foreach (XElement epi in profile)
{
IEnumerable<XElement> profNode =
from en in epi.Elements("node")
where (string)en.Attribute("text") == selNodeName
select en;
foreach (XElement enc in profNode)
{
// get the attribute texts
var childrenTexts = enc.Elements("node").Attributes("text");
foreach (var childText in childrenTexts)
{
if (childText.Value != "Company Name" || childText.Value != "File Path")
{
// enable TsmNewCo ContextMenu button if does not exists yet
TsmNewCo.Enabled = false;
}
}
// initialize the attribute tags to null
string CoFileTag = null;
string FilePathTag = null;
// get the attribute tags
var childrenTags = enc.Elements("node").Attributes("tag");
int count = 0;
// get db details for showing on the right panel of the main form specified below
foreach (var childTag in childrenTags)
{
if (count == 0)
{
CoFileTag = childTag.Value;
}
else if (count == 1)
{
FilePathTag = childTag.Value;
}
count++;
}
// show db details on the right panel of the main form
if (CoFileTag != null || FilePathTag != null)
{
TbcMain.SelectedIndex = 1;
TbcMain.Visible = true;
LblCompanyFileDef.Text = CoFileTag;
LblFilePathDef.Text = FilePathTag;
}
else
{
TbcMain.SelectedIndex = 1;
TbcMain.Visible = false;
}
}
}
#endregion
TsmNewTk.Visible = false;
TsmNewTkCred.Visible = false;
TsmNewLg.Visible = false;
TsmEditPr.Visible = false;
TsmEditDb.Visible = false;
TsmEditCo.Enabled = true;
TsmEditTk.Visible = false;
TsmEditTkCred.Visible = false;
TsmEditLg.Visible = false;
TsmDeletePr.Visible = false;
TsmDeleteDb.Visible = false;
TsmDeleteCo.Enabled = true;
TsmDeleteTk.Visible = false;
TsmDeleteTkCred.Visible = false;
TsmDeleteLg.Visible = false;
TsmRunTk.Enabled = false;
TsmRefreshLg.Enabled = false;
TsmHelpAll.Enabled = true;
}
else if (Convert.ToString(e.Node.Tag) == "d") //tasks
{
TsmNewPr.Visible = false;
TsmNewDb.Visible = false;
TsmNewCo.Visible = false;
TsmNewTk.Enabled = true;
#region Enable/Disable "New" if database and company file are not saved yet
selNodeParentName = TvwPanel.SelectedNode.Parent.Text;
selNodeDbSiblingName = TvwPanel.SelectedNode.PrevNode.PrevNode.Text;
selNodeCoSiblingName = TvwPanel.SelectedNode.PrevNode.Text;
Save_Treeview_To_Xml xcf = new Save_Treeview_To_Xml();
XElement xmlComplete = XElement.Load(xcf.xmlProfileComplete);
IEnumerable<XElement> profile =
from ep in xmlComplete.Elements("node")
where (string)ep.Attribute("text") == selNodeParentName
select ep;
// inquire if database has child or db already, if not this node is disabled
foreach (XElement epi in profile)
{
IEnumerable<XElement> profNode =
from en in epi.Elements("node")
where (string)en.Attribute("text") == selNodeDbSiblingName
select en;
if (profNode.Descendants().Count() == 0)
{
TsmNewTk.Enabled = false;
}
}
// inquire if company file has child or has file already, if not this node is disabled
foreach (XElement epi in profile)
{
IEnumerable<XElement> profNode =
from en in epi.Elements("node")
where (string)en.Attribute("text") == selNodeCoSiblingName
select en;
if (profNode.Descendants().Count() == 0)
{
TsmNewTk.Enabled = false;
}
else
{
foreach (XElement enc in profNode)
{
// get the attribute tags
var childrenTags = enc.Elements("node").Attributes("tag");
int count = 0;
// get company details for showing on the right panel of the main form specified below for task creation
foreach (var childTag in childrenTags)
{
if (count == 1)
{
qbFilePath = childTag.Value;
}
count++;
}
}
}
}
#endregion
TsmNewTkCred.Visible = false;
TsmNewLg.Visible = false;
TsmEditPr.Visible = false;
TsmEditDb.Visible = false;
TsmEditCo.Visible = false;
TsmEditTk.Enabled = false;
TsmEditTkCred.Visible = false;
TsmEditLg.Visible = false;
TsmDeletePr.Visible = false;
TsmDeleteDb.Visible = false;
TsmDeleteCo.Visible = false;
TsmDeleteTk.Enabled = false;
TsmDeleteTkCred.Visible = false;
TsmDeleteLg.Visible = false;
TsmRunTk.Enabled = false;
TsmRefreshLg.Enabled = false;
TsmHelpAll.Enabled = true;
// arbitrary control for showing up tasks summary
#region Extract data from Xml and show in the main form tabcontrol
selNodeParentName = TvwPanel.SelectedNode.Parent.Text;
selNodeName = TvwPanel.SelectedNode.Text;
if (Xml_Extract_Data_TaskSum(selNodeParentName, selNodeName) == true)
{
TbcMain.SelectedIndex = 2;
TbcMain.Visible = true;
}
else
{
TbcMain.SelectedIndex = 2;
TbcMain.Visible = false;
}
#endregion
}
else // for the task credentials
{
TsmNewPr.Visible = false;
TsmNewDb.Visible = false;
TsmNewCo.Visible = false;
TsmNewTk.Visible = false;
TsmNewTkCred.Enabled = false;
TsmNewLg.Visible = false;
TsmEditPr.Visible = false;
TsmEditDb.Visible = false;
TsmEditCo.Visible = false;
TsmEditTk.Visible = false;
TsmEditTkCred.Enabled = true;
TsmEditLg.Visible = false;
TsmDeletePr.Visible = false;
TsmDeleteDb.Visible = false;
TsmDeleteCo.Visible = false;
TsmDeleteTk.Visible = false;
TsmDeleteTkCred.Enabled = true;
TsmDeleteLg.Visible = false;
TsmRunTk.Enabled = true;
TsmRefreshLg.Enabled = false;
TsmHelpAll.Enabled = true;
// arbitrary control for showing up tasks details
#region Extract data from Xml and show in the main form tabcontrol
selNodeGrandParentName = TvwPanel.SelectedNode.Parent.Parent.Text;
selNodeDbSiblingName = TvwPanel.SelectedNode.Parent.PrevNode.PrevNode.Text;
selNodeCoSiblingName = TvwPanel.SelectedNode.Parent.PrevNode.Text;
selNodeParentName = TvwPanel.SelectedNode.Parent.Text;
selNodeName = TvwPanel.SelectedNode.Text;
Save_Treeview_To_Xml xcf = new Save_Treeview_To_Xml();
XElement xmlComplete = XElement.Load(xcf.xmlProfileComplete);
IEnumerable<XElement> profileTask =
from ep in xmlComplete.Elements("node")
where (string)ep.Attribute("text") == selNodeGrandParentName
select ep;
foreach (XElement ep in profileTask)
{
IEnumerable<XElement> profNodeTask =
from en in ep.Elements("node")
where (string)en.Attribute("text") == selNodeParentName
select en;
foreach (XElement ept in profNodeTask)
{
IEnumerable<XElement> profNodeTaskCred =
from en in ept.Elements("node")
where (string)en.Attribute("text") == selNodeName
select en;
foreach (XElement eptc in profNodeTaskCred)
{
// initialize the attribute tags to null
string ActionTag = null;
string TablesTag = null;
string FiltersTag = null;
string ScheduleTag = null;
// get the attribute tags
var childrenTags = eptc.Elements("node").Attributes("tag");
int count = 0;
// get db details for showing on the right panel of the main form specified below
foreach (var childTag in childrenTags)
{
if (count == 0)
{
ActionTag = childTag.Value;
}
else if (count == 1)
{
TablesTag = childTag.Value;
}
else if (count == 2)
{
FiltersTag = childTag.Value;
}
else if (count == 3)
{
ScheduleTag = childTag.Value;
}
count++;
}
// show db details on the right panel of the main form
if (ActionTag != null || FiltersTag != null || ScheduleTag != null)
{
LblActionDef.Text = ActionTag;
// TablesTag
string[] TablesTagArray = TablesTag.Split(','); //(new char[] { ',', ' ' });
LvwTables.Items.Clear();
foreach (string tt in TablesTagArray)
{
string table = tt.TrimStart();
ListViewItem lvi = new ListViewItem(table);
LvwTables.Items.Add(lvi);
}
// FiltersTag
// filter period
string filterPeriod;
int Pos1 = FiltersTag.IndexOf("Transactions: ") + "Transactions: ".Length;
int Pos2 = FiltersTag.IndexOf(" | Migration");
filterPeriod = FiltersTag.Substring(Pos1, Pos2 - Pos1);
LblFtrPeriodDef.Text = filterPeriod;
// migration type
string migrationType;
int Pos3 = FiltersTag.IndexOf("Type: ") + "Type: ".Length;
int Pos4 = FiltersTag.IndexOf(" | No");
migrationType = FiltersTag.Substring(Pos3, Pos4 - Pos3);
LblFtrMigTypeDef.Text = migrationType;
// no of record per query
string numberRecords;
int Pos5 = FiltersTag.IndexOf("Query: ") + "Query: ".Length;
numberRecords = FiltersTag.Substring(Pos5);
LblFtrRpqDef.Text = numberRecords;
// filter head
if (filterPeriod == "All" && migrationType == "Overwrite" && numberRecords == "0")
{
LblFiltersDef.Text = "Default";
}
else
{
LblFiltersDef.Text = "Custom";
}
LblSchedDef.Text = ScheduleTag;
TbcMain.SelectedIndex = 3;
TbcMain.Visible = true;
}
else
{
TbcMain.SelectedIndex = 3;
TbcMain.Visible = false;
}
}
}
}
// capture the db credentials for task running
Capture_DB_Credentials_for_NodeMouseClick_And_Task_Saving(selNodeGrandParentName, selNodeDbSiblingName, selNodeCoSiblingName);
#endregion
}
if (e.Button == MouseButtons.Right)
{
Point ClickPoint = new Point(e.X, e.Y);
TreeNode ClickNode = TvwPanel.GetNodeAt(ClickPoint);
if (ClickNode == null) return;
// Convert from Tree coordinates to Screen coordinates
Point ScreenPoint = TvwPanel.PointToScreen(ClickPoint);
// Convert from Screen coordinates to Form coordinates
Point FormPoint = this.PointToClient(ScreenPoint);
CmsPanel.Show(this, FormPoint);
}
}
In the Node_Selection_Action method, the last if statement block:
if (e.Button == MouseButtons.Right)
{
Point ClickPoint = new Point(e.X, e.Y);
TreeNode ClickNode = TvwPanel.GetNodeAt(ClickPoint);
if (ClickNode == null) return;
// Convert from Tree coordinates to Screen coordinates
Point ScreenPoint = TvwPanel.PointToScreen(ClickPoint);
// Convert from Screen coordinates to Form coordinates
Point FormPoint = this.PointToClient(ScreenPoint);
CmsPanel.Show(this, FormPoint);
}
is the only block of code that needs the TreeNodeMouseClickEventArgs properties. If you really need to pass this type of argument to the method then create one:
// Still no idea what is the relation, however...
private void TvwPanel_CursorChanged(object sender, EventArgs e)
{
var s = sender as TreeView;
var p = s.PointToClient(Cursor.Position);
var ht = s.HitTest(p);
if (ht.Node != null)
{
var args = new TreeNodeMouseClickEventArgs(ht.Node, MouseButtons, 1, p.X, p.Y);
Node_Selection_Action(s, args);
}
}
Unless I'm missing an access to the sender param in your code, you can omit it to simplify the method signature:
private void Node_Selection_Action(TreeNodeMouseClickEventArgs e) { }
Also, you can determine which mouse button is pressed anywhere in your code through the Control.MouseButtons property. The Control.MousePosition property gets the cursor's position in screen coordinates. So, maybe these two properties are all what you need.
Maybe the mentioned above last if block is in the wrong method and moving it into a new method or elsewhere in the context could be better.
Hope that helps.