Clear All Graphics In Datagridview?
Apr 27, 2010I use graphics.fillrectangle to draw rectangle in datagrid
and i want remove all rectangle , it's possible ?
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Graphics - How To Clear Form Background
Feb 23, 2012I am trying to create a simply bouncy ball application in VB net; I am using a timer and the FillEllipse() method to try ad create a new circle at every tick of the timer.
Code:
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim Gr As Graphics = Me.CreateGraphics
Gr.FillEllipse(Brushes.Teal, X, Y, W, H)
CollisionDetect()
X = X + X_Dir
Y = Y + Y_Dir
Gr.Dispose()
End Sub
The result? The form continously draws onto itself, without clearing the last circle. This means that you end up with a 'line' of spheres together.
To clarify:
X is well, the X-Coords
Y is Y- Y-Coords
X_Dir is an integer, it is added to every iteration of the loop so the next time the loop iterates, it'll be at a different location;
Y_Dir is the same but for the Y Coords;
CollisionDetect() Is empty. It is yet to be filled, it will handle the collision with the sides of the forms. W, H are width and height, respectively.
Use To Clear Graphics On A Form, Picturebox?
Dec 31, 2010Here are 3 subs I use to clear graphics on a Form, Picturebox, & PaintEventsArgs. I'm overriding DrwClear for each of the objects.
[Code]...
Drawing Graphics - How To Clear Image In PictureBox
Nov 23, 2011I have 1 image in picturebox. Now I draw some rectangles. I'm trying clear the image (only rectangles and left the image) without success.
Private Sub btnImageSelection_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnImageSelection.Click
Dim intImages As Integer = 0
Dim intImagesLine As Integer = 0
Dim intImagesColune As Integer = 0
picImage.Image = PictureBox1.Image
[Code] .....
The cycles for is for show the rectangules and works fine. but
i.Clear(Color.Blue)
The image is clear but the rectangles are showed and then unshowed.
Interface And Graphics :: Appearance Of Pixels Are Not Clear?
Oct 26, 2010Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim cr As New Bitmap(4, 4)
[code]......
Clear All Row In Datagridview?
Aug 28, 2011i m trying to clear my all row in datagridview. Here is simply code
Me.DatabaseDataSet.Clear()
Me.StuffTableAdapter.Update(Me.DatabaseDataSet)
Me.DatabaseDataSet.AcceptChanges()
It's almost clear datagridview, but don't save this changes in base. I quite the app and start it again then old row are back.
How To Clear A DataGridView
Apr 9, 2007How do I clear a DataGridView? Basically I want the user to be able to click the button again that fills it and it will erase everything and refresh the data.
View 17 RepliesHow To Clear Datagridview
May 5, 2009I am using datagridview.rows.clear() to empty a grid that i can't clear it. is there another way to empty the grid?
View 1 RepliesClear All The Rows Of A Datagridview?
May 27, 2011I keep finding ways to clear all the rows of a datagridview... but i want to keep my rows..is there an easier way than looping through every cell to clear all the values out of the cells of the datagridview??
View 5 RepliesClear Contents From Datagridview?
Dec 31, 2008I have a form with a datagridview on it. I have a save button that saves the data from the datagridview to the database.After the button (save) is clicked I want the datagridview to be cleared of the data that is present in the dataGirdView.
View 9 RepliesClear Contents Of A Datagridview?
Jul 22, 2009How can i clear the contents of a datagridview.[code]...
View 2 RepliesClear The Old Data From The Datagridview?
Jan 15, 2012how to clear the old data from the datagridview in vb.net.. the below code is retrieving the data from table and display in a gridview for particular person. but when i wanna check the next person record if he dosen't have record so the previous data still will not erased?
Dim c As New sqlStmt
c.myCon()
Dim da As New SqlDataAdapter("SELECT * FROM Experience WHERE CID='" &
[Code]....
DataGridView Update Or Clear?
Aug 26, 2010This is the problem I'm having, I have a grid that I need to update after the user enters some infoI've managed to get the grid to refresh adding the "new data" to the end of the list (not what I need)oad just the new data.
The steps I'm taking are as follows:
I'm clearing the DataSet using ds.clear()
rerunning my Queries
[code].....
How To Clear All Rows Of DataGridView
May 26, 2010I am using V Studio 2005, VB. In my application, I am asking the user to enter an ID and click on Search button. Now, when the user enter an ID for the first time, all the columns and rows appear fine in the DataGridView. When the user enters an ID second time (or third, etc), I want to erase the previous contents of the DataGridView and display the new values. For this, I am using .Clear() method of DataGridView which isn't giving me what I want. It is simply clearing the "previous values" and not deleting the "row".
View 6 RepliesHow To Clear DataGridView List
Aug 31, 2009datagridview1.rows.clear()
And this one
me.datagridview.rows.clear()
It says I cannot clear the datagridview list.
VS 2005 - How To Clear DataGridView From Another Form
Dec 17, 2009I have a mainForm with a DataGridView control. This DataGridView is not bound to any datasource. All Rows and Columns were added. On another Form, I have a button. When I click it I want the DataGridView to clear all rows.
Does not work, in button click event:
Form1.DatagridView1.rows.clear
Also does not work:
A "Public Sub" on the first form, invoked by the button press - so the change is made within the same form.
VS 2010 Clear Datagridview And Set A New Bound?
Mar 14, 2011I am trying to clear current datagridview data source and then set a new one to it. But it doesn't clear the old one and the new one doesn't set unless i click run the code twice.I have tried different ways but none of them works here is the code i am trying:
[Code]...
VS 2008 DataError In DataGridView When Trying To Clear The DataTable
Nov 28, 2009I'm trying to clear a DataTable and repopulate it, and the DataTable is bound to a DataGridView. Here's the code I'm executing:
vb.net
Using reader As MySqlDataReader = myCommand.ExecuteReader
SyncLock tableLock
running.Clear()
[Code]...
If you want to replace this standard messagebox, handle the DataError-expection
When debugging, there is no break in the code. The messagebox just pops up without showing me exaclty where the error is located.
Clear All Data In Datagridview And Not Delete Data , Column In Datagridview?
Jul 19, 2009How i clear all data and not delete data or column in datagridview?
View 1 RepliesClear The Contents Of The Datagridview So That When Each Option Is Selected Only That Data Is In The Grid?
Jun 22, 2009Public
Class LoanCalc
Private Sub butCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butCalc.Click
'This procedure executes when the user clicks the Calculate
'button to produce a loan payment based on the requirements
'as stated in the service request.
'Variable Declarations
Dim douPrincipal As Double = Me.txtPrincipal.Text
Dim douInterest() As Double = {5.35, 5.5, 5.75}[CODE]......
Create A CLEAR BUTTON Loop To Clear All Textboxes?
Dec 13, 2011this is currently my code to clear my 5 textboxes
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
TextBox1.Clear()
TextBox2.Clear()
TextBox3.Clear()
TextBox4.Clear()
TextBox5.Clear()
End Sub
Clear Dataset But Get Error Sometimes If It Is Empty When Try To Clear It?
May 17, 2009I have a timer that runs every time by itself, and for the code the runs in it I would like to have it clear the dataset before it does anything, the timer runs every 10 seconds, so I tried to do dataset.clear but it would crash if the dataset had no values
View 4 RepliesInterface And Graphics :: Listview Or Datagridview - Get/set Specific Cell?
Oct 20, 2008I need to display a list with 2 columns and "n" rows (first column will be an IP address and second column the status - say connected, failed, etc).The case is that I need to be able to SET and GET the value of a certain cell. For instances, if the user click the first row of the list (row 0), I want to be able to get what is the intersection 0,0 (IP of first row) and intersection 1,0 (status of first row) and so on.I am trying Listview and Datagridview with no success.
View 8 RepliesInterface And Graphics :: Painting DataGridView Column Headers?
Apr 1, 2011IDE: VB Express 2008Problem: Painting DataGridView Columns.I have done extensive Google searches and found very little on the subject.I have searched this site to no avail.
View 1 RepliesInterface And Graphics :: Rows Cannot Be Programmatically Added To DataGridView
Mar 16, 2010Below:
datBrakePointsX.Rows.Add(strA)
produces the error 'Rows cannot be programatically added to the DataGridView's rows collection when the control is databound.'
To my knowledge, this is an empty grid. I am adding data manually and the code below works if I remove the line. The problem is I need to add the next line.
Private Sub cmdAddX_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAddX.Click
' Find the first blank cell
For c As Integer = 0 To datBrakePointsX.Rows.Count
If Len(datBrakePointsX.Rows.Item(0).Cells(c).Value) = 0 Then
datBrakePointsX.Rows.Item(c).Cells(0).Value = c
[Code] .....
Interface And Graphics :: Semi-alternating Datagridview Row Colors?
Aug 10, 2011I want four rows in a row to share a color in a datagridview and alternate between two colors every fourth row. What I'm doing is this:
Code:
Public function FormCells() As DataGridViewRow()
Dim NewRow(Forms.length - 1) As DataGridViewRow
[code].....
Interface And Graphics :: DataGridViewComboBoxColumn Change To Automatically Update Datagridview?
Jan 24, 2010I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen?
View 1 RepliesClear Hyperterminal - When Press "ctrl+L" Is To Clear Terminal Screen How To Write The Code?
Jun 23, 2011in hyper teriminal when i press "ctrl+L" is to clear terminal screen how to write the code in vb.net? Hyperterminal is connecting to serial comport.when i try this it work and return line on debug
serialport.writeline ("at+cmgl=1")
i try this but not work and it still show some lines on debug
serialport.writeline (vbcrtl +"L")
serialport.WriteLine("vbCrLf + l")
.net - Clear() Or Txtbox.Text = "" Textbox Clear Methods
Sep 20, 2010way to clear textboxes in VB.Net and what is the difference between the two methods? I have also seen people be critical of folk using clear objects on their forms and i can see why but in this case, i am only learning.
txtbox1.Clear()
or
txtbox1.Text = ""
Clear All The Data In Data Grid View Without Clear The Binding Source?
Jul 15, 2009wan to ask about anyone know the code about how to clear all the data inside the data grid view without clear the binding source...
View 1 Replies