I try to find online any example for create an application autoupdate.
When I run my application it check in a webserver if exist new version,if exist the software run update.
I want a Code to check Database exist in SQL and Message Box Show Database Exist Yes/NO?
View 1 Repliesnamespace of "system.runtime.caching" does not exist but in object explorer and microsof exist.i use microsoft visual studio 2010 and .net framework 4.0.i also cant use this name space(System.IO.MemoryMappedFiles & System.Runtime.Caching.MemoryCache)
any body know what is the problem. i want my program after doing something (opening a file or any thing that can do something my program use more memory.)use memory like startup run.
Here's my code:
Option Infer Off
Option Explicit On
Option Strict On
Public Class Form1
Public Sub NewToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NewToolStripMenuItem.Click
[Code]...
My question is im rebuilding an app i made years ago but i want to add the auto update i have the file downloader down to a T but i dont wanna use the Click once auto-update So i want to read a text file from a online server and then check if the version info inside matches the my.setting.build string inside my application if it doesnt it opens theupdate.exe the that dose what i have it programmed to to
View 3 RepliesUsing VB.Net and Sql Server I want to check the user Entry Value.The User is entering the code in the textbox, before saving to the table, i want to check whethere code is already exist in the table or not.
Tried Code
cmd = New SqlCommand("Select code from table where code = '" & textbox1.Text & "' ", Con)
dr = cmd.ExecuteReader()
While dr.Read()
End While
If value is exist, then message to the user "Already Exist" other wise save to the table.
I have Requests for VB(2005) very very important for my selly project!i need a button that determine if file exist and if that file exist then show a messagebox!and if not show messagebox!.
View 2 RepliesI want to check inside a dir if any folder exists. Every way I found is to check for a specific folder with name as string. I want something like
folderExists = My.Computer.FileSystem.DirectoryExists("C:TestDirectory*")
how do i verify a file like a image or html exist on the web?
View 6 Repliesi am having a problem in writing the code that checks whether a directory exists or not in FTP using vb.net..
View 3 RepliesI had it working at one point now it does not want to work. Im checking the registry for a subkey and I know it exists but vb is telling me it doesnt, which is driving me up the wall, this is what I got[code]...
View 1 RepliesThis code works. i insert 3 string and then check if the database already save this code.if the first string does not exist it works well.but when 1 string "already exist" or found in the DB, all of the next string say its already in db even though it haven't. what should i do?
For count = 0 To strArr.Length - 1
If strArr(count).Contains("=") Then
str1 = strArr(count)
coun = str1.IndexOf("=")
str1 = str1.Substring(0, coun)
[Code]...
i'm using mysql database, what codes for check if username is already exist this for creating username and password ..
View 2 RepliesI try to integrate Human Resource DB to Active Directory.Once I use sql ,getting all person and department and then write to ad.but if a department built new how to check is exist or new in active directory,also person also computer.
View 3 Repliesthe way i could use VBA to check if a function say function1 is present in class1. if the function is present display 1 else display 0.
View 2 RepliesMy question is how to check a letter exist in a word. For example this word: 'computer' and I give in a textbox letter 'a' then the result will be false because 'computer' doesn't exist a letter 'a' else if I give letter 'c' the result will be true because computer has a 'c'.
View 5 RepliesHow can I check if an object (in this case my object would be a ButtonBox) exists inside a GroupBox but in a exact location.
Something like this :
If Groupbox1.NameOfButtonBox.location(40,190) exists then
Do my code
end if
I know the syntax is completely wrong but it's just an example
I created a form with a checkbox and my purpose is if data have already existed, the checkbox will show a check when it launch however i am very new to VB( First time actualy). i google to find the answer but the best solution just tell me to use RegQueryValueEx, unfortunately,i don't know axactly how.
View 12 Replieswhat is the fastest way to check if Item ID exist in the database?
From what i have done, i have an excel file uploaded to datagridview, then each itemID is retrieved line by line, then accessed the database to check if ItemID exists.
Is there a way to retrieve the whole column of itemID and then query it to MSSQL2000, then display the itemIDs that does not exist.
Im using Microsoft Visual Studio 2010
Microsoft Acess 2010
This is for practice
Lets See First off i was able to get to insert records(Code Below)Now im trying to get the program to prompt a message when the id or field exists on the key down event and not enter it if it exists and if it doesnt exist im guessing i could use my already existing code to insert it[code].............
i have a code where I dynamically generate the columns name and bind it it datatable. now I am iterating thru loop for each column and fill the datatable. My Problem is when I fill for first column row is already added to the position(e.g 0,1). if row at some position already exist in datatable I should not write
dr = dt.NewRow()
dt.Rows.Add(dr)
how to check the data is already exist in database using vb 6.0Naren
View 1 RepliesIs there a way to check if certain file extensions exist within a directory?
View 2 RepliesUsing VB.Net and Sql Server. I want to check the user Entry Value. The User is entering the code in the textbox, before saving to the table, I want to check whether code is already exist in the table or not.
Tried Code
cmd = New SqlCommand("Select code from table where code = '" & textbox1.Text & "' ", Con)
dr = cmd.ExecuteReader()
While dr.Read()
End While
If value is exist, then message to the user "Already Exist" other wise save to the table.
i need to send mail after taking screenshot. If i clicked the mail button first should check whether the file exist or not. Find the code below and tell me how to verify it.
Private Sub SendEmail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SendEmail.Click
Dim objOutlook As Object
[Code].....
I'm using custom events activation/desactivation in one of my class. Let's say :
AddHandler trv_treeview.BeforeExpand, AddressOf sub_LoadNextLevel
and
RemoveHandler trv_treeview.BeforeExpand, AddressOf sub_LoadNextLevel
In another part of the code, I now need to know "Is there an event attached or not". In my search I found that Vb hold an hidden private variable <Eventname>Event. I've tried trv_treeview.BeforeExpandEvent but with no success. How is it possible, in Vb, to check how many Events are already attached to a method?
Basically I just want to set up exceptions for my program to prevent errors. The problem I am having is that sometimes the field name does not exist. For example, I am setting focus to the username text field named simply "username". However, if the entry does not exist (name=username) then I get an error. So what I need is a simple if statement to determine if it exist beforehand.
If Webbrowser1.Document.All("username").Exist Then
WebBrowser1.Document.All("username").Focus()
else
Messagebox.show("Field was not found!")
End If
im connect the database using the OLEDB, how to write the code when the user types '02' in textbox1, 'myname' in textbox2 and 'myqty' in textbox3, if database table itemcode field same with textbox1 then will only update the textbox2 and textbox3 in other field, if it does not exist then create the new record.
View 5 RepliesI have a program to validate the licenses the program call to the data base and check if the serialkey exist in the database this is the code demo :
Try
mysqlconnection3 = New MySqlConnection
mysqlconnection3.ConnectionString = "server=216.172.546.128;Port=3306; user id=reina_velocidad; password=tremendacontrasena;[code]...
I've written a code where depending on some condition i have add item in list as With lview
.Items.Add(mydr(0))
With .Items(.Items.Count - 1).SubItems
if some condition then
[Code].....