Clear My Data Table?
Jun 4, 2011How can i clear my data table? I am using VB.Net as my front end MySQL as my Back end.
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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 RepliesError: Cannot Clear Table Table1 Because ForeignKeyConstraint FK_Table1Table2 Enforces Constraints And There Are Child Rows In Table2
Feb 15, 2012I have datagridview1 binded to data Table1 (with binding source) . This data table1 is in relation with his child data table2.When I insert new record to table1 I want to refresh datagridview1.
If I use table adapter fill method I get error.TableAdapter1.Fill(Me.DataSet1.Table1) ' error error: Cannot clear table Table1 because ForeignKeyConstraint FK_Table1Table2 enforces constraints and there are child rows in Table2.
Clear All Data In Database?
Jul 24, 2010i'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].....
Clear Listview Of Data
May 10, 2012i 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 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]....
VS 2010 How To Clear Data
Jan 25, 2012This 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
Code To Clear Data In A Column?
Feb 24, 2009Using 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 RepliesCreate 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
C# - Clear Saved Autofill Data Of Browser In Asp.Net?
Apr 17, 2011Does any one know how to clear all saved autofill data of browser in Asp.Net
View 2 RepliesClear The Data In The Grid Before Executing The Codes?
Jun 21, 2010My 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]....
Filling The Datatable From Three Variable Or Putting The Three Table's Data Into One Variable And Then Producing The Data Table?
Jan 20, 2011I have three table and I want to put the three table's data in one variable and from that variable i will produce the datatable and then want to write the data in CSV file.I am Following this step..
Void
GetDetails()
DataClasses1DataContext
[code].....
.net - Clear Part Of The Data From A Two-dimension Integer Array?
Feb 3, 2011If 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 RepliesClear Part Of The Data From A Two-dimension Integer Array?
Jul 19, 2011If 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 RepliesPassword Protected Button To Be Able To Clear The Data From The Grid
Nov 8, 2010I'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]....
Reset / Clear An Existing Chart To Display New Data
Mar 26, 2012I 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.
VS 2005 OOP Classes - Can't Clear List Of Data Saved
Dec 3, 2009bare 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]...
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 RepliesClear Text Boxes Once Data Is Inserted Into Database From A Addbtn?
Jul 20, 2010I 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].....
Clear 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]......
Add A Row In Data Table Taking Values From 2 Text Boxes Which Are Not Bound To That Table?
Dec 26, 2010I have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
View 1 RepliesCode To Edit Data-row Of Table Adapter But Doesnt Update Table
Apr 23, 2009I have this code to edit the datarow of my table adapter but t doesnt update the table. I think i have a missing code that's why but i cant figured it out. by the way im using vb2008 and SQL as my database. [code]
View 3 RepliesDisplay Data Stored In A Sql Sever DB Table, The Table Has A Field With 6 Values?
Jul 8, 2009I currently have this working already for one of my combo box's, but when i try to use the same code i get this error ''There is no row at position 6.'' . The are 2 fields in the table asset_type_id, asset_type_name', im trying to dispaly the values in a combo box for the field 'asset_type_name.
the code for ' Friend Sub RetrieveCustomerInformation2()' works but the other friend sub throws the error.
Imports System.Data.SqlClient
Imports System.Data
Imports System
Imports System.Data.OleDb
[Code]...
Update Unable To Find Table Mapping Or Data Table
May 23, 2010While am using the below code it was throwing an exception update unable to find table mapping [Customer] or data table customer.
[code]...
VS 2010 : Make The Combobox Get Data From One Table And Input It To Another Table?
Jul 7, 2011I have 1 access database with 3 tables How do I make the combobox get data from one table and input it to another table?ex.I have a table with all my Carriers and another table with jobs that are assigned to Carriers?
View 3 RepliesVS 2008 After Click Ok Button All Controls Displaying Data Clear In Dataentry Form
Apr 28, 2011After 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 RepliesClear 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 RepliesGet Particular Table On Data Grid From Selecting Table Name On Combobox?
Jun 7, 2011i have a combobox on the form and a datagrid viewer .no i want to display the table which selected on combo box..
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")
Using A Table Adapter To Insert Data Into Another Table?
Feb 23, 2011I have a form that fills a table adapter with this:
Me.Scratchpad3TableAdapter.Fill(Me.MDRDataSet.scra tchpad3
and what I'd like to do is when users edit something on this form that they post the changes to a table called exceptionsedit which is not part of that dataset. What I don't know how to do is to how to insert those edits to the exceptionsedit table.