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Type: Posts; User: Prahlad
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You can use the string.IsNullOrEmpty or string.IsNullOrWhiteSpace methods to check your TextBox value.
string yourValueToPutIntoDatabase = (string.IsNullOrEmpty(yourTextBox.Text)) ?...
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Have a look at the System.Diagnostics.Process class:
Process p = <Get process>
Console.WriteLine(p.MainWindowTitle)
Reference: link
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This error usually means that the target machine is running, but the service that you're trying to connect to is not available. (Either it stopped, crashed, or is busy with another request.)
In...
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https://docs.microsoft.com/en-us/visualstudio/get-started/visual-basic/tutorial-console
https://www.vbtutor.net/
https://www.homeandlearn.co.uk/NET/vbNet.html
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Whenever new versions arrive, there are always new Features. You will only benefit if you update I find some new feature of vs2019 so that is beneficial for you let see
1.Lightweight and modular...
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This helped and it supports BLOB/TEXT columns.
CREATE TEMPORARY TABLE temp_table
AS
SELECT * FROM source_table WHERE id=2;
UPDATE temp_table SET id=NULL WHERE id=2;
INSERT INTO source_table...
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Try it
Imports System.Data.OleDb
Public Class addNew
Dim conn As New OleDbConnection()
Dim sqlCom As New OleDbCommand()
Private Sub btnAddNew_Click(sender As Object, e As EventArgs)...
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Dim Stream As New IO.StreamReader("File.xml", System.Text.Encoding.UTF8)
Dim Reader As New Xml.XmlTextReader(Stream)
Reference : https://stackoverflow.com/a/17528811/11954917
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Dim oExcel As Object
Dim oBook As Object
Dim oSheet As Object
'Start a new workbook in Excel
Set oExcel = CreateObject("Excel.Application")
Set oBook =...
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Imports Microsoft.WindowsAPICodePack.Taskbar
Private WithEvents ttbButton1 As ThumbnailToolbarButton
Private WithEvents ttbButton2 As ThumbnailToolbarButton
Private WithEvents ttbButton3...
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Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
TrackBar1.Minimum = 0
TrackBar1.Maximum = 11 ' 0...
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lots of things but I have to suggest some important point from my point of view
1.SIMPLE AND CLEAR DESIGN
2.QUICK LOGIN AND CHECKOUT
3.CONSISTENCY AND SIMPLE NAVIGATION
4.PROMINENT CART BUTTON...
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added a new project and saved it, found the problem solved !!!!!!!!!!!!!!!!!!!!!
somethings come by luck!
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plz follow this link
https://dzone.com/articles/integrating-nodejs-c-dll
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Private Sub PictureBox1_Click(sender As Object, e As System.EventArgs) Handles PictureBox1.Click, PictureBox2.Click '<--This is where we append the objects
ActivePbox.BackColor =...
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it's worked good for me
plz try this :
INSERT INTO DB2.TB1 SELECT * from DB1.TB1;
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Hello,@.paul.
Please follw this step,To Problems with ViewState
Step 1
Create an app.browser file in App_browsers directory. Plug in page adapters in the app.browser file as follows:
...
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You could add a reference to Microsoft Script Control Library (COM) and use code like this to evaluate an expression. (Also works for JScript.)
Dim sc As New MSScriptControl.ScriptControl()...
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Hello,@kuldevbhasin
Please try this code,To nav bar not displaying 1 sub menu
<script src="Scripts/jquery-3.4.1.min.js"></script>
<script src="Scripts/bootstrap.min.js"></script>
...
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Remove security follow this link
"https://support.microsoft.com/en-in/help/290991/how-to-manually-remove-sql-server-2000-default-named-or-virtual-instan"
Import/Export
Right click the database...
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In regards to actual printing, I simple set the DocumentName of the PrintDocument, there is of course more to do here so it actually prints.
Public Class SomeDemo
Private dt As DataTable =...
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Hello,@FunkySloth
Please try this code,To Single or Multiple Service & Controller
angular.module('myModule', [])
.controller('MyController', [
'Service1', 'Service2',...
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Add This to a Module:
Declare Function SetSysColors Lib "user32" _
(ByVal nChanges As Long, lpSysColor As _
Long, lpColorValues As Long) As Long
Public Const COLOR_CAPTIONTEXT = 9
And in...
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Hello,@Ecniv
Please try this code,To JQuery > button > click created link
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
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You can try in MouseUp event.
Private Sub lvlcheckin_MouseUp(sender As Object, e As MouseEventArgs) Handles lvlcheckin.MouseUp
If e.Button = Windows.Forms.MouseButtons.Left Then
...
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If you want to "disable" other keypress events, maybe look at using code and ASCii to prevent certain events on taking place when user pressed the key for instance the 'TAB' key.
Attached is the...
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Hello,@boops boops
Please try this code,To Append table to ADO database
adVarWChar = 202
adInteger = 3
file = "C:\TEMP\NEW.MDB" ; change to suit your situation...
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Public Sub Array_BubbleSort(ByRef vArrayName As Variant, _
Optional ByVal lUpper As Long = -1, _
Optional ByVal lLower As Long = -1)
Dim vtemp As Variant...
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Sub studentScores(ByVal name As String, ByVal ParamArray scores() As String)
Debug.WriteLine("Scores for " & name & ":" & vbCrLf)
' Use UBound to determine largest subscript of the array.
...
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Hello,@nader
Please try this code, How To select many fields by DISTINCT one field ?
SELECT * FROM
GPSReport AS G1
JOIN (SELECT device_serial, max(datetime) as mostrecent
FROM...
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Although 2008 and the below version provide an automatic function to convert Vb6 code to VB.net framework. But the problem starts after the conversion, it Skips some code, adds function/variables on...
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Hello,@nader
Please try this code,To The problem with name and size column of DGV
You could set the width of the abbrev column to a fixed pixel width, then set the width of the description...
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Live Demo
Module loops
Sub Main()
Dim a As Byte
' for loop execution
For a = 10 To 20
Console.WriteLine("value of a: {0}", a)
Next
...
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Hello,@Winanjaya
I also went through the same problem, after much research I discovered that the await operator does not stop the work if the HttpClient returns error 500.
To work around the...
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The connection string property must be placed under configuration tag in your web config file. Here is mine.
<connectionStrings>
<add name="myConnection" connectionString="Data...
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Dim Message, Title, Default, MyValue
Message = "Enter a value between 1 and 3" ' Set prompt.
Title = "InputBox Demo" ' Set title.
Default = "1" ' Set default.
' Display message, title,...
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Hello,@thorskonnord
It is indeed a shortcoming of WebForms. In ASP.NET MVC you can implement as many forms as you want (and it is valid & correct behavior of web pages).
The reason all server...
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The service we will create does nothing really useful other than serve as a demonstration. When the service is started we will log an entry in a database indicating that it has started. The service...
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Dim Offset As Point
Private Sub PictureBox1_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles PictureBox1.MouseDown
Offset = New Point(-e.X, -e.Y)
End Sub
Private Sub...
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Hello,@aspfn
Please try this code,To Connection string in web.config file
<connectionStrings>
<add name="yourconnectinstringName" connectionString="Data Source= DatabaseServerName;...
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