i want to clear listview. Everytime i refresh(filter my results e.g. ascending, decending) my listview data is appended to the listview. I want to clear the data in the listview before i add new data or do i need to clear the dataset that supplys the data e.g. im using access.[code]
View 3 Replieswan 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 Replieshow to clear items from a ListView but no advice on how to clear columns from a ListView. The first time that the form is activated, coding creates and loads four columns in a ListView. On subsequent activations I want to remove those ListView columns before proceeding, otherwise I get eight columns and then twelve columns etc. There has to be a simple way of putting the ListView back to its initial state.
View 3 RepliesI have a listview called lvwuncommittedpayment. I want to be able to clear a selected row on click event. How can I clear the selected row from the listview.
View 5 RepliesI am having throuble resetting my textboxes to nothing if the selection in the listview is nothing. I.e. when i select a record my textboxes are updated with teh selected data, but if nothing is selected after something is selected I would like to clear the textboxes to blank again.[code]
View 1 Repliesok I made my self a listview with a checkbox on it. I was wondering if it was even possible to add something to my form so when I build my project and I rightclick on my list view item a menu will open saying:
delete item
Clear Item
A menu (not a form) just like when you do a right click on your mouse.
When I run the program it will populate the listview but when i delete the selected item it will clear all of my records in my listview. . . .can anyone elp me with this??This is my code. . . .
[Code]...
i'm trying to come up with some code that can clear a database.
I've tried to loop the "delete" code that i have, tought each row in that database, but i get error at last row saying somethink like "row do not exist" and when i got back and look, there is still one record left in the database. Here is the code i used.
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source =" & Application.StartupPath & "\Filmer.mdb"
con.Open()
[Code].....
How can i clear my data table? I am using VB.Net as my front end MySQL as my Back end.
View 1 Replieshow 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]....
This week I am doing a simple addition, multiplication calculator and am having a little problem clearing data and resetting the enter button. It is supposed to keep the add and multiplication buttons disabled till the user has entered two numbers into the list box, then you are able to choose between addition and multiplication. What I am trying to accomplish is once I hit the clear button the enter button becomes available again to enter numbers into the list box again and do the whole thing again.
'Author: Russell Thtch
'Instruction: Asieh Dicken
'Assignment: Ex.5.10 page 186
reating a web browser just for fun and am trying to show the favicon
I have a vb-2008 program that contains a (listview) control.
View = details
AllowColumnReorder = true
Lets say the table has 3 columns (a,b,c) and 1 row of data.
a b c
1 2 3
I want the user to be able to re-arrange the columns (by dragging the column headers) before printing the contents of the table.
c a b
3 1 2
Statements like:
.. ListViewX.Columns(2).Text
.. ListViewX.Columns.Item(2).Text
.. ListViewX.Items(0).SubItems(2).ToString
Give the column-name (c) and cell-contents (3) of the origional table .. not the (3rd) column (b) of the re-arranged table.
How can i get the column-name and cell-contents of the (3rd) column of the re-arranged table?
i am developing a point of sales system. currently i have my product code scanned and displayed in a listview. lets say that i have 5 product codes displayed in my first listview. By clicking on a button, how can i use these codes to call upon the details (prices, product name, etc.) of the corresponding codes and display in another listview?
i am using Visual Basic 2008 and MsAccess as my database. who have the idea on solving my question. (As my last thread has not been answered at all..
Using MS Access 2003 I am trying to build a command button in a form which clears the contents of a table column (which are tick boxes) - the idea behind it is this - the database is a contacts database for a club. Every year there is a subscription to be paid, so I want a column to annotate those who have paid (using a tick box). At the end of the year this will be reset - hence the reason for trying to produce a command button that clears out the ticks. What I using is this ....Private Sub Command11_Click()Dim strSQL As StringstrSQL = "UPDATE TBL-Master SET TBL-Master.campaign = '';"DoCmd.RunSQL strSQLEnd Sub(TBL-Master is the table name, campaign is the column name)What I am getting is a runtime error - 3144 -
View 3 Repliesthis 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
i am developing a point of sales system. currently i have my product code scanned and displayed in a listview. lets say that i have 5 product codes displayed in my first listview.
By clicking on a button, how can i use these codes to call upon the details (prices, product name, etc.) of the corresponding codes and display in another listview?
i am using Visual Basic 2008 and MsAccess as my database.
Does any one know how to clear all saved autofill data of browser in Asp.Net
View 2 RepliesMy below codes in a button click event populate data in the grid upon the user click the button.
1. How do I know that my commandtext did not find any matching data to popup the message to the user - No Records found.
2. How do I clear the data in the grid before executing the below codes.
--conection to SQL Server is opened
myadaptor.SelectCommand = New SqlCommand
myadaptor.SelectCommand.Connection = myconection
[code]....
If my array is A(i,j) can I use Array.Clear to zero all of the elements for i=2, for example. It does not work as I expected.
View 1 RepliesIf my array is A(i,j) can I use Array.Clear to zero all of the elements for i=2, for example. It does not work as I expecte
View 7 RepliesI'm using an array to populate a datagrid. I want a password protected button to be able to clear the data from the grid. I thought this would be fairly easy but so far it's not working. The following code doesn't generate any errors but the array still has data in it.
If txtPassword.Text = "bucswin" Then
Array.Clear(DataGridValues, 6, 23)
frmMain.DG1.Refresh()
[Code]....
I currently have a chart that plots lines of a changing value every time it is called via a timer.
Everything is running as I expected and I am happy, but now I want to be able to press a [STOP] button which will stop the timer and stop the graph from updating, (which I have coded and is now working OK), BUT I then want the code under this [STOP] button to clear everything from the graph, so when I re-start the timer, the graph is cleared and starts plotting fresh points on a clean graph.
The problem I currently have is that when I press the [STOP] button and then press the [START] button, the new lines that get plotted are "added" to the existing lines that are already on the chart, instead of having a new "blank" chart, with no data on it.
So what I am really asking is does anyone know if it is possible to reset a chart clearing everything off it so it is ready to start displaying fresh data?
I was hoping it was something like: "Chart1.Clear" or something simple like that, but I can't seem to find anything that will do it.
bare with me here ok I posted on here a while back, like month to 2 months ago about creating an array of data (user inputed data). But was suggested to go the class route. After weeks of lengthly reading came up with a list collection class.
[Code]...
I 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 RepliesI am having a problem regarding to pass all the data on the listview from one form to another and add another columns. The purpose of my columns is that I want to put text from there because I am sending a mail but I want to get the status of my message if it failed or send and write it at every end of the rows.
View 4 RepliesI have a button that inserts data into a database.With that button I want it to serve two functions.One for insert and one for clearing the textboxes after the insert is done.I did a little bit of digging around and her is a code snippet that i found online:
Dim ctrl As Control
For Each ctrl In Me.Controls
If TypeOf ctrl Is TextBox Then ctrl.Text = ""
[code].....
Public
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]......
After click the ok button all controls of displaying data should be clear in dataentry form. If i enter some data in the Combobox or Textbox for saving the data into the database, If i click the OK button all controls of displaying data should be clear, B`se i want to enter next record, so how can i do this?? Is there any Refresh Property is there?
View 8 RepliesHow i clear all data and not delete data or column in datagridview?
View 1 Repliesin 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")