good day!
there is a textbox autocomplete code
Private Sub Form5_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim day_source As New AutoCompleteStringCollection()
day_source.AddRange(System.Enum.GetNames(GetType(DayOfWeek)))
PrepareTextBox(TextBox1, day_source, AutoCompleteMode.SuggestAppend)
End Sub
Private Sub PrepareTextBox(ByVal txt As TextBox, ByVal source As AutoCompleteStringCollection, ByVal mode As AutoCompleteMode)
txt.AutoCompleteSource = AutoCompleteSource.CustomSource
txt.AutoCompleteCustomSource = source
txt.AutoCompleteMode = mode
End Sub
Tell me how you can display a message with the name of the selected value when you select a value?
The KeyDown event fires with e.KeyCode = 13 when the user presses Enter or Double Clicks on an item in the list.
Private Sub TextBox1_KeyDown(sender As Object, e As KeyEventArgs) Handles TextBox1.KeyDown
If e.KeyCode = 13 Then
MsgBox(TextBox1.Text)
End If
End Sub
Related
I would like to ask if how could possibly disable tabs in tabcontrol.
This is what the codes looks like when disable:
Public Sub TabControl1_Selecting(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TabControlCancelEventArgs) Handles TabControl1.Selecting
If e.TabPageIndex = 3 Then
e.Cancel = True
End If
End Sub
This code only disable while you load the form
I was trying to convert a code from c# however it doesn't work as I expected.
See this code:
Public Sub EnableTabs(ByVal Page As TabPage, ByVal bolFlag As Boolean)
EnableControls(Page.Controls, bolFlag)
End Sub
Private Sub EnableControls(ByVal Ctrls As Control.ControlCollection, ByVal bolFlag As Boolean)
For Each Ctrl As Control In Ctrls
Ctrl.Enabled = bolFlag
EnableControls(Ctrl.Controls, bolFlag)
Next
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
'I have problems with this line
EnableTabs(TabControl1.TabPages(TabControl1.SelectedIndex) = 0, False)
End Sub
Is there anyway that I could possibly disable a tab while clicking a button?
Let me know!
Thanks,
Regards,
Alvin
Try this:
Private Sub Button_Click( sender As Object, e As EventArgs) Handles Button.Click
Dim tabPage As TabPage
For Each tabPage In TabControl1.TabPages
If tabPage.Text ="TabPage1"
tabPage.Enabled =False
End If
Next
End Sub
or
Private Sub Button1_Click( sender As Object, e As EventArgs) Handles Button1.Click
TabControl1.TabPages(0).Enabled =false
End Sub
Yet another answer.
At some point if you want to disable a tab - use this code at the appropriate point
TabControl1.TabPages(x).Enabled = False
Where x is the zero-based index of the tab page you want to disable.
When the user clicks on a TabPage, the Selecting event fires for the whole control. Using the e eventargs parameter you can see the index of the TabPage being selected. The code in this event checks to see if it is disabled and if so, cancels the tab click.
Private Sub TabControl1_Selecting(sender As Object, e As TabControlCancelEventArgs) Handles TabControl1.Selecting
If e.TabPage.Enabled = False Then
e.Cancel = True
End If
End Sub
I already answered it. Anyhow, I would like to share it for you guys.
I just change the code from:
EnableTabs(TabControl1.TabPages(TabControl1.SelectedIndex) = 0, False)
to:
EnableTabs(TabControl1.TabPages(1), False)
This code only the contain of tab not by disable while selecting/clicking the tab header. I think I just use this one for now. If you have other source of code that is useful enough. Just leave on the answer section below. I loved to hear them all.
Thanks anyway.
Regards,
Alvin
I have already my own answer based on it. And I used this code right now, for example I have 3 tabs with 0-2 index respectively.
Public Sub Tab0Flag As Boolean
Public Sub Tab1Flag As Boolean
Public Sub Tab2Flag As Boolean
Public Sub TabControl1_Selecting(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TabControlCancelEventArgs) Handles TabControl1.Selecting
If e.TabPageIndex = 0 Then
e.Cancel = Tab0Flag
End If
If e.TabPageIndex = 1 Then
e.Cancel = Tab1Flag
End If
If e.TabPageIndex = 2 Then
e.Cancel = Tab2Flag
End If
End Sub
Private Sub EnableTabs(ByVal Tab0 As Boolean, ByVal Tab1 As Boolean, ByVal Tab2 As Boolean)
Tab0Flag = Tab0
Tab1Flag = Tab1
Tab2Flag = Tab2
End Sub
Private Sub frmG_Load(sender As Object, e As EventArgs) Handles MyBase.Load
'I'll Only Disable the 2nd tab
EnableTabs(False, True, False)
End Sub
How to Add Add Date In Datagridview Current Cell on Keyboard Key Press in vb
My Code
Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load
KeyPreview = True
End Sub
Private Sub Form1_KeyPress(sender As Object, e As KeyPressEventArgs) Handles Me.KeyPress
'when you press the Enter key,invoke the method( you can remove it)
If Keys.S And Convert.ToString(DataDataGridView.CurrentRow.Cells(4).Value) = ("S".ToString) Then
'add the code about changing the data
DataDataGridView.CurrentRow.Cells(4).Value = vbNullString
DataDataGridView.CurrentRow.Cells(4).Value = TimeOfDay
End If
End Sub
End Class
Not Working....
When i Write S in Cell 4 Then Dateandtime Not Add
Using VB.Net (Windows Application)
In the form (called as FirstForm), i am using textbox, add-form Button, search button.
When i click the add-form button, it will give the new form (same as FirstForm)
Code for adding new form
Private Sub btnadd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadd.Click
Dim SecondForm As New FirstForm
SecondForm.Show()
End Sub
Search Button Code
Private Sub Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Search.Click
If FirstForm.Focus = True Then
FirstForm.textbox1.Text = gridview1.Rows(crRow).Cells("code").Value.ToString().Trim()
Else
Dim SecondForm As New FirstForm
SecondForm.textbox1.Text = gridview1.Rows(crRow).Cells("code").Value.ToString().Trim()
End If
End Sub
The above code is working, but If i am in second Form when i click the search button and selected the value, then the value is appearing in the FirstForm textbox, it is not appearing in the SecondForm textbox.
If SecondForm is showing, the selected Value should appear in the SecondForm textbox not in the FirstForm Textbox.
How to solve this issue.
Need Vb.net code Help
Use Me - Reference variable which hold ref. of current form.
Dim frm As FirstForm
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
If IsNothing(frm) OrElse frm.IsDisposed Then
frm = New FirstForm
End If
frm.Show()
End Sub
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
Me.textbox1.Text = gridview1.Rows(crRow).Cells("code").Value.ToString().Trim()
End Sub
Using "me" will not solve the problem?? why are you referring to the form in a static way?
Private Sub Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Search.Click
textbox1.Text = gridview1.Rows(crRow).Cells("code").Value.ToString().Trim()
End Sub
I have, what should be , a very simple problem, but now I have used 5 hours without results.
I have a usercontrol, UserControl1, which I want to drag and drop on my form, Form1.
That’s it. It should be simple, but I have googled for hours without results. Does anybody have a sample code to fix this?
I dont know what a user control is (I'm still learning) but I found something that might help.
In this code, add two TextBox controls to a form and set the AllowDrop property of the second TextBox control to True.
Then use this code to enable drag and drop
Private MouseIsDown As Boolean = False
Private Sub TextBox1_MouseDown(ByVal sender As Object, ByVal e As _
System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown
' Set a flag to show that the mouse is down.
MouseIsDown = True
End Sub
Private Sub TextBox1_MouseMove(ByVal sender As Object, ByVal e As _
System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseMove
If MouseIsDown Then
' Initiate dragging.
TextBox1.DoDragDrop(TextBox1.Text, DragDropEffects.Copy)
End If
MouseIsDown = False
End Sub
Private Sub TextBox2_DragEnter(ByVal sender As Object, ByVal e As _
System.Windows.Forms.DragEventArgs) Handles TextBox2.DragEnter
' Check the format of the data being dropped.
If (e.Data.GetDataPresent(DataFormats.Text)) Then
' Display the copy cursor.
e.Effect = DragDropEffects.Copy
Else
' Display the no-drop cursor.
e.Effect = DragDropEffects.None
End If
End Sub
Private Sub TextBox2_DragDrop(ByVal sender As Object, ByVal e As _
System.Windows.Forms.DragEventArgs) Handles TextBox2.DragDrop
' Paste the text.
TextBox2.Text = e.Data.GetData(DataFormats.Text)
End Sub
I hope that you can use this for a usercontrol. Good luck and comment!
Here is the code, I have used, to get it work.
Now I have a form, Form1, and a usercontrol, Usercontrol1. To drag the usercontrol, I inserted a panel in the top of the usercontrol, and only if the user pressed the panel (panel1), the control should to move - like normal windows forms.
Public Class UserControl1
Shared mypositionX As Integer
Shared mypositionY As Integer
Shared mBlnFormDragging As Boolean
Shared drawBeginX As Integer
Shared drawBeginY As Integer
Shared drawing As Boolean
Private Sub Panel1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Panel1.MouseMove
If mBlnFormDragging = True Then
Dim position As Point = Form1.PointToClient(MousePosition)
Me.Location = New Point(position)
End If
End Sub
Private Sub Panel1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Panel1.MouseUp
' Dim dd1 As DragDropEffects = DoDragDrop(ParentForm, DragDropEffects.Move)
mBlnFormDragging = False
Dim position As Point = Form1.PointToClient(MousePosition)
Location = New Point(position)
End Sub
Public Sub Panel1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Panel1.MouseDown
'Dim dd1 As DragDropEffects = DoDragDrop(ParentForm, DragDropEffects.Move)
mBlnFormDragging = True
End Sub
I have a datagridview that I have put a ContextMenuStrip1 on. I would like it to remove a row in the datagridview when the row is right clicked on and they click on "delete row". I have the delete working and the menu is showing up but this isn't firing when you right click on the datagridview.
This is where I am setting the row to edit:
Private Sub ModifyRowToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ModifyRowToolStripMenuItem.Click
If Not datagridview_TagAssignment.CurrentRow Is Nothing Then
datagridview_TagAssignment.CurrentCell = datagridview_TagAssignment.Item(0, datagridview_TagAssignment.CurrentRow.Index)
datagridview_TagAssignment.BeginEdit(True)
End If
End Sub
I am always ending up on row(0) and never the row I right clicked on.
Private Sub datagridview_TagAssignment_CellMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles datagridview_TagAssignment.CellMouseClick
If e.Button = Windows.Forms.MouseButtons.Right AndAlso e.RowIndex >= 0 Then
datagridview_TagAssignment.Rows(e.RowIndex).Selected = True
End If
End Sub
Anyone have any suggestions?
Private Sub DataGridView1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DataGridView1.MouseClick
If e.Button = Windows.Forms.MouseButtons.Right Then
rowClicked = DataGridView1.HitTest(e.Location.X, e.Location.Y).RowIndex
ContextMenuStrip1.Items.Add(rowClicked.ToString)
ContextMenuStrip1.Show(DataGridView1, e.Location)
ContextMenuStrip1.Items.Clear()
End If
End Sub
Edit: Updated to handle a context menu strip.
That should give you the row index of the row that was right clicked using the mouse coordinates. Which should let you delete the row based on knowing the index.
Edit
Per Your comment on it not working this is my code
I have a Solution with a WinForm with a dataGridView added to it. and this is the code in the form.
Public Class Form1
Dim bindS As New BindingSource
Dim rowClicked As Integer
Private Sub DataGridView1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DataGridView1.MouseClick
If e.Button = Windows.Forms.MouseButtons.Right Then
rowClicked = DataGridView1.HitTest(e.Location.X, e.Location.Y).RowIndex
ContextMenuStrip1.Items.Add(rowClicked.ToString)
ContextMenuStrip1.Show(DataGridView1, e.Location)
ContextMenuStrip1.Items.Clear()
End If
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim s As New List(Of String)
s.Add("String one")
s.Add("String Two")
bindS.DataSource = s
DataGridView1.DataSource = bindS
End Sub
End Class
Right Clicking on a row shows the correct row index
Make sure that the event args that you are handling are the System.Windows.Forms.MouseEventArgs I noticed that you're handling the cell click