How To Delete Value Variable
Aug 30, 2009How I can delete value variable using vb.net.. I try this one..
strTBL_T5_Lookup = "" or
strTBL_T5_Lookup = nothing
But value is still in there.
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Delete A Variable On Runtime?
May 25, 2011im using many variables in my project however, they are most of the time used for 1 or 2 things, so having them loaded up like that forever sounds not very good for performance.Is there a way i can remove a variable after i no longer need it?
for example:
private sub button1_click() handles button1.click
dim result as integer = var2 + var1 / 2
[code]....
Change/delete Item From Form, Who Was Created As A Non-global Variable In Rum-time
Nov 4, 2009I have created a picBox inside a function, this function then adds some properties to it and then adds to: Me.Controls.Add(thisarray(count))
View 1 RepliesHow To FileInfo Before, Delete Or SHIFT + DELETE, Process Final Delete Of File
Feb 13, 2011How can be find out which file is going to delete when, user provides command like DELETE or SHIFT + DELETE or by programmatically gives DELETE command. Well I know about FileSystemWatcher Class, but this class doesn't provide information before delete...
View 1 RepliesVS 2008 Error: Range Variable 'sender' Hides A Variable In An Enclosing Block Or A Range Variable Previously Defined In The Query Expression
Mar 25, 2010I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this
Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1
[code]....
I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.
Confirmation Delete Window - Deleting Record When Click Delete Or Cancel?
Jan 5, 2012I have a javascript file that contains the function for calling the confirmation delete window, the code used is similar to the following:
function Delete()
{
confirm('Delete this user');
[code].....
C# - DirectoryInfo.Delete(True) Doesn't Delete When Folder Structure Is Open In Windows Explorer
Nov 5, 2010Assuming I have a folder structure like:
[Code]...
This works fine, unless I have Windows Explorer open and I'm looking at the 'MySubFolder' directory. Then I get an IOException The directory is not empty. - clicking OK dismisses this and then the folder structure is not deleted. Any thoughts on how I can get this to perform correctly (i.e. delete), even when running this code while having the folder struture open in Windows Explorer?
2003 : Delete The Selected Row On The Datagrid When The Delete Button Is Clicked?
Jul 16, 2009I have a datagrid being filled by the data adapater connected to my database.I have a delete button on the form, i cant figure out how to delete the selected row on the datagrid when the delete button is clicked.
View 1 RepliesDelete Row In Datagrid By Selecting Record Selector And Hitting Delete?
May 13, 2011I'd like to create code for my datagrid view to be able to delete a row by first clicking the record selector column then pressing delete. Seems like some standard stuff but really difficult to create in VB 2005.
View 10 RepliesVS 2010 Delete Top 1 - Delete A Number Of Records In A Table From The Last And Forward?
Mar 16, 2011I'm trying to delete a number of records in a table from the last and forward. My idea is to use sql like this: delete top " & variable & " * from table where ID = something It gives me a general sytax error. Is it at all possible? Fuga. Edit: I also have the order by statement there. I just forgot to put it in the question.
View 5 RepliesVariable Error "Variable 'reader' Hides A Variable In An Enclosing Block"
Aug 23, 2011I receive the error -
[Code]...
Cancel The Delete Activity From Within The Delete Click Event?
Feb 5, 2006I have a BindingNavigator and combobox tied to the same BindingSource. I want to allow the user to confirm a delete after hitting the delete button of the navigator. It appears that the row gets marked for deletion after my BindingNavigatorDeleteItem_Click event handler is processed. Is there no way to cancel the delete activity from within the delete click event? If not, then it becomes necessary to store a delete flag and catch another event to RejectChanges.
Deletecommand Would Delete All Rows But Not Completely Delete In Database
Jun 6, 2011my deletecommand delete all my rows whenever i delete a row..but when i view it again the other rows still there and the i deleted is actually deleted.[code]
View 5 RepliesWhy Does DELETE Not Delete Rows From Underlying Database Table
Feb 5, 2010*WeightCheck is a dataset connected to a mdf SQL server file..Datagrid on form is bound to the dataset..This code executes because datagrid on form updates with the deletions..[code]
View 1 RepliesCan't Delete The Attribute When Delete The Element On Another Node?
May 19, 2009In the following code when the Element ("title2") is deleted the Attribute(("TEST") on another node doesn't get delete. If you remove the xnode1.RemoveChild(xNode2) (that deletes the element) the attribute does gets deleted. why I can't delete the attribute when I delete the element on another node?
Public
Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
[Code]....
Delete A Row In GridView Using The Delete Hyperlink Colum?
Apr 30, 2012I have a gridview that contains data from a database somewhere in a sql server, so far so good, what i want to be able to do next is delete a row when i press the delete...Am new to asp.net and vbi will send the code and a printscree of the software:
ascx
<%@ Control Language="VB" AutoEventWireup="false" CodeFile="Admin.ascx.vb" Inherits="Admin" %>
[code]....
Delete Record From GridView.Before To Ask For Confirmation Like 'Are You Sure To Delete?'
Apr 1, 2011I want to delete record from GridView.Before to this ask for confirmation like "Are you sure to delete?"I used command field in GridView, [code] I wrote a function in javascript. [code] How I will call this on delete click.
View 4 RepliesIDE :: Delete A Row In GridView Using The Delete Hyperlink Column
Apr 30, 2012I have a gridview that contains data from a database somewhere in a sql server, so far so good, what i want to be able to do next is delete a row when i press the delete..
i will send the code and a printscree ofthe software:
<%@ Control Language="VB" AutoEventWireup="false" CodeFile="Admin.ascx.vb" Inherits="Admin" %>
002<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
[Code]....
Used The Delete Sql Method To Delete Data From A Database?
Jun 10, 2010My apologies I have posted this in the wrong catagory It should be in VB.net, my mistake)Hi guys I posted this question at the end of another topic I started but I think it will be over looked as the origional topic was solved of the dreamincode community You must all be getting sick of my quexstions by now haha I suppose you don't learn if you dont ask.
Anyway I have used the delete sql method to delete data from a database, I want to refresh the data in the form after the record has been deleted. Do I have to close the form and then open an new instance of it? or is there another way I can refresh the data?
[Code]...
Delete A Row With Keyboard DELETE Press?
Apr 4, 2011I have a DataGridView1 that i Update it manualy from keyboard,by default with arrow keys i change cells , rows and columns but .How to Delete Complete row with DEL key from Keyboard ?if i Press Del key entire ROW to delete no meter i'm in Column 1, 2 or Row 3 , 4 so Delete a ROW from current ROW index.
View 2 RepliesAsp.net - Update / Delete The Table Records In ASPNETDB.MDF In Single Update / Delete Query?
Nov 29, 2010I want to know how to Update / delete the table records in ASPNETDB.MDF in single update / delete query ?
View 1 RepliesProgram Function - Says, "The Type For Variable [variable] Will Not Be Inferred Because It Is Bound To A Field
May 18, 2012Public Class Form1
Dim x, c, number(0 To 19) As Integer
Dim s As Integer
[CODE]...
The variables in the brackets [example] do not actually have brackets in them in the original code. These are where the issues are. For both variables, it says, "The type for variable [variable] will not be inferred because it is bound to a field in an enclosing scope. Either change the name of [variable], or use the fully qualified name (for example, 'Me.[variable]' or 'MyBase.[variable]')." Now, I'm not entirely sure if this is a stupid question or not, as I'm used to VB '98 because that's what we use in my programming class at High School. let me know why this won't work.
-Note: The intention of this program is to continually loop the generation of numbers for this list until I tell it to stop. Button1 ends the program, Button2 generates the list one time only, Button3 is supposed to loop the generation of the list, and Button4 is supposed to end the loop, but not the program.
VS 2010 Compiler Creates New Variable Automatically When Use If Statement Without Strictly Declared Variable?
Jan 10, 2011Say that i have the following code that parse about 20k records from the DB.
Code #1
vb.net While reader.Read()
list.Add(If(Integer.TryParse(reader(0).ToString, 0), Integer.Parse(reader(0).ToString), 0))
End While
And then another code which does the very same thing but it seems to be a little cleaner.
Code #2
vb.net While reader.Read()
Dim storeowner As Integer = 0
Integer.TryParse(reader(0).ToString, storeowner)
list.Add(storeowner)
End While
This is what i am confused about; does the compiler creates a new variable automatically when i use the if statement without strictly declared variable? What approach is better in sense of performance?
Variable Naming Conventions To Illustrate Variable Type And Where Variables Are Declared
Aug 24, 2009I am looking for a good resource on variable naming conventions to illustrate variable type and where variables are declared. So I will have public variables, Private variables, private or local variables. I also may want to declare variables with the same name in different class code (i.e. in the code behind different forms). I am assuming good coding would dicatate a prefix for declaration location.
View 4 RepliesImport Text File : Object Variable Or With Block Variable Not Set
Mar 28, 2011i have this error in the line of with xl.active......Object variable or With block variable not set.
Dim xl As Object
xl = CreateObject("Excel.Application")
With xl.ActiveSheet.QueryTables.Add(Connection:= _
"TEXT;C:Documents and SettingsUserDesktop429MEDICA2.TXT", _ Destination:=xl.Range("$A$1"))
[code]....
Object Variable Or With Block Variable Not Set - From Property Get With Bindingsource.current?
May 31, 2012Now I have the need to get a current value from a bindingsource in a property of a user control.In a previous thread I had tracked down the "Object variable or With block variable not set" to the return in the Get block of a property. At the time I was only using the Set so I just commented out the offending code until I needed it.
[Code]...
The error does not occur during a system compile, only upon saving the container object of the user control. As I said the Set works correctly, only the Get causes the error.I would like to know what I am missing/misunderstanding and am open to other suggestions of handling retrieving the current value of a bindingsource in a user control.
Pass A Variable To Another Form Or Else Make The Variable Visible To Both Forms?
Sep 5, 2010Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
View 4 RepliesSerialport VB2008.net - Input Variable And Output Variable Of This Terminal?
May 14, 2010I am using vb2008.net express,I test vs2005term it work, can any tell me what is the input variable and output variable of this terminal?how to catch the input and output variable to a textbox1 for sending and a textbox2 for receiving when I press send button? is that possible?
View 1 RepliesWrite A Variable To A File That Has A Different Type Than The Function Assigned To The Variable
Sep 17, 2011I have the following code that I am using to parse out a test file. I am getting variable conversion error in Sub Main() when I assign file = Read(). The return value of Read() is a TextFieldParser type. How do I assign the proper variable type to "file" so I can write the output to a text file?
Function Read()
Using MyReader As New FileIO.TextFieldParser("C:UsersColinDesktopParse_Me.txt")
Dim currentRow As String
[Code].....
"Variable 'cnn' Hides A Variable In An Enclosing Block?
Mar 19, 2009I have the following code but I get blue squiggly line in cnn and when i point my mouse pointer on it i see this message "Variable 'cnn' hides a variable in an enclosing block"
Private Sub BtnLockUnlock_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnLockUnlock.Click
Dim IsLocked As Boolean = FpSpread1.ActiveSheet.DefaultStyle.Locked
[code].....
