How to filter subform using Combo box in MS access forms VBA
In this video, we'll show you how to filter a subform using a Combo box in MS access forms VBA. This method is useful if you want to display different data fields in a subform depending on the value of a selected field.
We'll use the Combo box example to illustrate how to filter a subform using VBA. After watching this video, you'll be able to filter a subform using a Combo box in MS access forms VBA with ease!
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Excel VBA tutorial for beginners- How to create login form in Microsoft Excel VBA 2023
In this video, we'll learn how to create a login form in Microsoft Excel using VBA. We'll show you how to create a user login form with a show and hide password textbox. This tutorial is useful if you need to create a login form for your website or application.
If you're a Microsoft Excel user, then this video is for you! In this video, we'll show you how to create a user login form using VBA. We'll show you how to create a user login form with a show and hide password textbox. This tutorial is useful if you need to create a login form for your website or application. So make sure to watch the video and learn how to create a login form with
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C# tutorial: Retrieve data from SQL server based on comboBox Inside dataGridView with code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace combobox_dataGridView
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void Form2_Load(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=students;Integrated Security=True");
SqlCommand cmd = new SqlCommand("Select code_student From marks_students", conn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
code_student.DataSource = dt;
code_student.DisplayMember = "code_student";
code_student.ValueMember = "code_student";
}
private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=students;Integrated Security=True");
for (int i = 0; i <=dataGridView1.Rows.Count - 1; i++)
{
SqlCommand cmd = new SqlCommand("Select id,firstname,lastname,grade,marks From marks_students Where code_student = '" + dataGridView1.Rows[i].Cells[0].Value + "'", conn);
conn.Open();
SqlDataReader myreader = cmd.ExecuteReader();
if (myreader.Read())
{
dataGridView1.Rows[i].Cells[1].Value = myreader["id"].ToString();
dataGridView1.Rows[i].Cells[2].Value = myreader["firstname"].ToString();
dataGridView1.Rows[i].Cells[3].Value = myreader["lastname"].ToString();
dataGridView1.Rows[i].Cells[4].Value = myreader["grade"].ToString();
dataGridView1.Rows[i].Cells[5].Value = myreader["marks"].ToString();
}
conn.Close();
}
}
private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
{
if (dataGridView1.IsCurrentCellDirty)
{
dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
}
}
}
}
How to create login form in Microsoft Access VBA 2023
In this video, we're going to show you how to create a login form in Microsoft Access 2016. This is a useful skill if you need to create a login form for a database or if you're developing a custom application. If you're looking to learn how to create a login form in Microsoft Access 2023, then this video is for you! We'll walk you through the steps necessary to create a login form in Access 2016, and provide some helpful tips along the way. Watch and learn! Subscribe to @programmingforeverybody https://www.youtube.com/@programmingforeverybody/?sub_confirmation=1
With source code- Visual Basic.net project: System calculate installments and due dates in VB.net
Public Class Form5
Dim dt As New DataTable
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
dt.Columns.Add("Installment", GetType(String))
dt.Columns.Add("Value", GetType(Integer))
dt.Columns.Add("Due_date", GetType(Date))
DataGridView1.DataSource = dt
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim price_v, adv_payment, installment_value, n_intallments, final_installment As Double
price_v = TextBox1.Text
adv_payment = TextBox2.Text
installment_value = TextBox3.Text
n_intallments = Math.Ceiling((price_v - adv_payment) / installment_value)
final_installment = (price_v - adv_payment) Mod installment_value
DataGridView1.DataSource = Nothing
dt.Clear()
DataGridView1.DataSource = dt
DataGridView1.Columns("Due_date").DefaultCellStyle.Format = "MM-dd-yyyy"
For i As Integer = 1 To n_intallments
Dim date_payment = DateAdd(DateInterval.Month, i, Now)
dt.Rows.Add("Installment" & i, TextBox3.Text, date_payment)
Next
If final_installment <> 0 Then
Dim lastrow As Integer = DataGridView1.Rows.Count - 1
DataGridView1.Rows(lastrow).Cells(1).Value = final_installment
End If
End Sub
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