Datagrid select error

[Black_Trouble]

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms
Imports Microsoft.VisualBasic
Public Class hesap
#Region " text alan "
    Protected Overrides Sub OnResize(ByVal e As EventArgs)
        MyBase.OnResize(e)
        Me.Button1.Left = (Me.MaskedTextBox1.Width - Me.Button1.Width)
    End Sub
#End Region
#Region " Plan Tanıtım "
    Protected Class hesapplani
        Inherits System.Windows.Forms.Form
        Private Mydgv As hesap
        Private WithEvents dgv As System.Windows.Forms.DataGridView

        Public Sub New(ByRef plan As hesap)
            Mydgv = plan

            Me.dgv = New System.Windows.Forms.DataGridView
            Me.SuspendLayout()

            Me.dgv.Location = New System.Drawing.Point(0, 0)
            Me.dgv.Margin = New System.Windows.Forms.Padding(0)
            Me.dgv.Name = "datagrid"
            Me.dgv.TabIndex = 0
            Me.dgv.Dock = DockStyle.Fill


            Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
            Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
            Me.ClientSize = New System.Drawing.Size(295, 614)
            Me.ControlBox = True
            Me.Controls.Add(Me.dgv)
            Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable
            Me.MaximizeBox = True
            Me.MinimizeBox = True
            Me.Name = "Hesap Planı"
            'Me.ShowIcon = False
            Me.ShowInTaskbar = False
            Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
            Me.ResumeLayout(False)


        End Sub

        Private Sub hesapplani_Load(sender As Object, e As EventArgs) Handles Me.Load
            If baglanti.State = ConnectionState.Closed Then baglanti.Open()
            dategetir(dgv, "select kodu,adi from hesapplani")
            baglanti.Close()

        End Sub
    End Class
#End Region

    Private Sub MaskedTextBox1_GotFocus(sender As Object, e As EventArgs) Handles MaskedTextBox1.GotFocus
        MaskedTextBox1.Select(0, 1)
    End Sub
    Private Sub MaskedTextBox1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles MaskedTextBox1.Resize
        ' SetButton()
        Me.Height = MaskedTextBox1.Height
    End Sub

    Private Sub MaskedTextBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles MaskedTextBox1.TextChanged
        'RaiseEvent TextChanged(Me, EventArgs.Empty)
    End Sub
    Private hesaplar As hesapplani

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        If hesaplar Is Nothing Then hesaplar = New hesapplani(Me)
        hesaplar.ShowDialog()
    End Sub
    Private Sub dgv_CellMouseClick(sender As Object, e As DataGridViewCellMouseEventArgs)
        Me.MaskedTextBox1.Text = Me.dgv.Rows(Me.dgv.CurrentRow.Index).Cells(0).Value
    End Sub
End Class

ERROR

 Private Sub dgv_CellMouseClick(sender As Object, e As DataGridViewCellMouseEventArgs)
        Me.MaskedTextBox1.Text = Me.dgv.Rows(Me.dgv.CurrentRow.Index).Cells(0).Value
    End Sub

I can not select data from datagrid

[dunfiddlin]

Me.MaskedTextBox1.Text = Me.dgv.Rows(Me.dgv.CurrentRow.Index).Cells(0).Value.ToString

[Black_Trouble]

has failed again

[Black_Trouble]

Public function()

I need to create a selection. the other is a separate table for another table. choice is going to be a function of

[dunfiddlin]

Do you have more than one form? Is dgv actually on the form you're coding for?

[Black_Trouble]

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms
Imports Microsoft.VisualBasic
Public Class hesap
#Region " text alan "
    Protected Overrides Sub OnResize(ByVal e As EventArgs)
        MyBase.OnResize(e)
        Me.Button1.Left = (Me.MaskedTextBox1.Width - Me.Button1.Width)
    End Sub
#End Region


#Region " Plan Tanıtım "
    Protected Class hesapplani
        Inherits System.Windows.Forms.Form
        Private Mydgv As hesap
        Private WithEvents dgv As System.Windows.Forms.DataGridView

        Public Sub New(ByRef plan As hesap)
            Mydgv = plan

            Me.dgv = New System.Windows.Forms.DataGridView
            Me.SuspendLayout()

            Me.dgv.Location = New System.Drawing.Point(0, 0)
            Me.dgv.Margin = New System.Windows.Forms.Padding(0)
            Me.dgv.Name = "datagrid"
            Me.dgv.TabIndex = 0
            Me.dgv.Dock = DockStyle.Fill
            Me.dgv.AllowUserToAddRows = False
            Me.dgv.ReadOnly = True
            Me.dgv.AllowUserToDeleteRows = False
            Me.dgv.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing
            Me.dgv.AllowUserToResizeColumns = False
            Me.dgv.AllowUserToResizeRows = False
            Me.dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells
            Me.dgv.RowHeadersWidth = 15
            Me.dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect

            Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
            Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
            Me.ClientSize = New System.Drawing.Size(450, 614)
            Me.ControlBox = True
            Me.Controls.Add(Me.dgv)
            Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable
            Me.MaximizeBox = True
            Me.MinimizeBox = True
            Me.Name = "HesapPlanı"
            'Me.ShowIcon = False
            Me.ShowInTaskbar = False
            Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
            Me.ResumeLayout(False)
        End Sub
        Private Sub hesapplani_Load(sender As Object, e As EventArgs) Handles Me.Load
            If baglanti.State = ConnectionState.Closed Then baglanti.Open()
            dategetir(dgv, "select kodu,adi from hesapplani")
            baglanti.Close()

        End Sub
        
        Public Sub secelim()
            Dim secelim As Integer = dgv.Rows(dgv.CurrentRow.Index).Cells(0).Value.ToString()
        End Sub


    End Class
#End Region
    


   
    Private Sub MaskedTextBox1_GotFocus(sender As Object, e As EventArgs) Handles MaskedTextBox1.GotFocus
        MaskedTextBox1.Select(0, 1)
    End Sub
    Private Sub MaskedTextBox1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles MaskedTextBox1.Resize
        Me.Height = MaskedTextBox1.Height
    End Sub

    Private hesaplar As hesapplani

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        If hesaplar Is Nothing Then hesaplar = New hesapplani(Me)
        hesaplar.ShowDialog()
    End Sub

    Private Sub dgv_CellClick(sender As Object, e As DataGridViewCellEventArgs)
        Me.MaskedTextBox1.Text = hesaplar.secelim
    End Sub
End Class

[Black_Trouble]

I have a usercontrol datagrid to create a form from there I added codes. paintings, so that is the name of an account at one hesapplani

[dunfiddlin]

Public Sub secelim()
            Dim secelim As Integer = dgv.Rows(dgv.CurrentRow.Index).Cells(0).Value 'so now NOT .ToString()
        End Sub

Private Sub dgv_CellClick(sender As Object, e As DataGridViewCellEventArgs)
        Me.MaskedTextBox1.Text = hesaplar.secelim.ToString '.Text is always String, Integer is NOT String
    End Sub

[Black_Trouble]

I'm sorry it did not. bridge the gap between problem-created account and the account plan

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms
Imports Microsoft.VisualBasic
Public Class hesap
#Region " text alan "
    Protected Overrides Sub OnResize(ByVal e As EventArgs)
        MyBase.OnResize(e)
        Me.Button1.Left = (Me.MaskedTextBox1.Width - Me.Button1.Width)
    End Sub
#End Region


#Region " Plan Tanıtım "
    Protected Class hesapplani
        Inherits System.Windows.Forms.Form
        Private Mydgv As hesap
        Private WithEvents dgv As System.Windows.Forms.DataGridView

        Public Sub New(ByRef plan As hesap)
            Mydgv = plan

            Me.dgv = New System.Windows.Forms.DataGridView
            Me.SuspendLayout()

            Me.dgv.Location = New System.Drawing.Point(0, 0)
            Me.dgv.Margin = New System.Windows.Forms.Padding(0)
            Me.dgv.Name = "datagrid"
            Me.dgv.TabIndex = 0
            Me.dgv.Dock = DockStyle.Fill
            Me.dgv.AllowUserToAddRows = False
            Me.dgv.ReadOnly = True
            Me.dgv.AllowUserToDeleteRows = False
            Me.dgv.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing
            Me.dgv.AllowUserToResizeColumns = False
            Me.dgv.AllowUserToResizeRows = False
            Me.dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells
            Me.dgv.RowHeadersWidth = 15
            Me.dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect

            Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
            Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
            Me.ClientSize = New System.Drawing.Size(450, 614)
            Me.ControlBox = True
            Me.Controls.Add(Me.dgv)
            Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable
            Me.MaximizeBox = True
            Me.MinimizeBox = True
            Me.Name = "HesapPlanı"
            Me.Text = "Hesap Planı"
            'Me.ShowIcon = False
            Me.ShowInTaskbar = False
            Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
            Me.ResumeLayout(False)
        End Sub
        Private Sub hesapplani_Load(sender As Object, e As EventArgs) Handles Me.Load
            If baglanti.State = ConnectionState.Closed Then baglanti.Open()
            dategetir(dgv, "select kodu,adi from hesapplani")
            baglanti.Close()

        End Sub
        
        Private Sub dgv_CellClick(sender As Object, e As DataGridViewCellEventArgs) Handles dgv.Click
            hesap.MaskedTextBox1.Text = Me.dgv.Rows(Me.dgv.CurrentRow.Index).Cells(0).Value.ToString()
        End Sub

    End Class
#End Region

   
    Private Sub MaskedTextBox1_GotFocus(sender As Object, e As EventArgs) Handles MaskedTextBox1.GotFocus
        MaskedTextBox1.Select(0, 1)
    End Sub
    Private Sub MaskedTextBox1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles MaskedTextBox1.Resize
        Me.Height = MaskedTextBox1.Height
    End Sub

    Private hesaplar As hesapplani

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        If hesaplar Is Nothing Then hesaplar = New hesapplani(Me)
        hesaplar.ShowDialog()
    End Sub
   
   
End Class

[Black_Trouble]

hesap is in the field of

Public Sub secelim()
            Dim secelim As Integer = dgv.Rows(dgv.CurrentRow.Index).Cells(0).Value 'so now NOT .ToString()
        End Sub

plan is in the field of

Private Sub dgv_CellClick(sender As Object, e As DataGridViewCellEventArgs)
        Me.MaskedTextBox1.Text = hesaplar.secelim.ToString '.Text is always String, Integer is NOT String
    End Sub

need to be the exact opposite.

[Black_Trouble]

2012 to send the project, but I'm doing, etc.

[dunfiddlin]

need to be the exact opposite.

It can't be the exact opposite. Text is always string even when it's numbers!

Public Sub secelim()
Dim secelim As String = dgv.Rows(dgv.CurrentRow.Index).Cells(0).Value.ToString()
End Sub

[Black_Trouble]

not again

[Black_Trouble]

I added the file. Can you take a look at

lookup control.rar

[Black_Trouble]

wonder if the result does not

[AceInfinity]

has failed again

This, dgv isn't even a control on your Main form...

Hover your mouse over the underlined regions and read the errors, otherwise open your error window and see what they say. This dgv_CellMouseClick isn't even Handling an event.

[Black_Trouble]

yes an event on the control. translated using English is not good. better placed to describe the sample. Can you help out the sample project.

[AceInfinity]

yes an event on the control. translated using English is not good. better placed to describe the sample. Can you help out the sample project.

I don't download projects from unknown sources, but I help on the individual code aspect of things. What does your errors window say? Copy them out and post them in your next reply, i'll show you what they mean.

[Black_Trouble]

ERROR
Reference to a shared member requires an object reference.

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms
Imports Microsoft.VisualBasic
Public Class hesap
#Region " text alan "
    Protected Overrides Sub OnResize(ByVal e As EventArgs)
        MyBase.OnResize(e)
        Me.Button1.Left = (Me.MaskedTextBox1.Width - Me.Button1.Width)
    End Sub
#End Region


#Region " Plan Tanıtım "
    Protected Class hesapplani
        Inherits System.Windows.Forms.Form
        Private Mydgv As hesap
        Private WithEvents dgv As System.Windows.Forms.DataGridView

        Public Sub New(ByRef plan As hesap)
            Mydgv = plan

            Me.dgv = New System.Windows.Forms.DataGridView
            Me.SuspendLayout()

            Me.dgv.Location = New System.Drawing.Point(0, 0)
            Me.dgv.Margin = New System.Windows.Forms.Padding(0)
            Me.dgv.Name = "datagrid"
            Me.dgv.TabIndex = 0
            Me.dgv.Dock = DockStyle.Fill
            Me.dgv.AllowUserToAddRows = False
            Me.dgv.ReadOnly = True
            Me.dgv.AllowUserToDeleteRows = False
            Me.dgv.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing
            Me.dgv.AllowUserToResizeColumns = False
            Me.dgv.AllowUserToResizeRows = False
            Me.dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells
            Me.dgv.RowHeadersWidth = 15
            Me.dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect

            Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
            Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
            Me.ClientSize = New System.Drawing.Size(450, 614)
            Me.ControlBox = True
            Me.Controls.Add(Me.dgv)
            Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable
            Me.MaximizeBox = True
            Me.MinimizeBox = True
            Me.Name = "HesapPlanı"
            Me.Text = "Hesap Planı"
            'Me.ShowIcon = False
            Me.ShowInTaskbar = False
            Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
            Me.ResumeLayout(False)
        End Sub
        Private Sub hesapplani_Load(sender As Object, e As EventArgs) Handles Me.Load
            If baglanti.State = ConnectionState.Closed Then baglanti.Open()
            dategetir(dgv, "select kodu,adi from hesapplani")
            baglanti.Close()

        End Sub
        
       

        Private Sub dgv_CellClick(sender As Object, e As DataGridViewCellEventArgs) Handles dgv.Click
            hesap.MaskedTextBox1.Text = dgv.Rows(dgv.CurrentRow.Index).Cells(0).Value.ToString()
        End Sub
    End Class
#End Region
    
    Private Sub MaskedTextBox1_GotFocus(sender As Object, e As EventArgs) Handles MaskedTextBox1.GotFocus
        MaskedTextBox1.Select(0, 1)
    End Sub
    Private Sub MaskedTextBox1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles MaskedTextBox1.Resize
        Me.Height = MaskedTextBox1.Height
    End Sub

    Private hesaplar As hesapplani

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        If hesaplar Is Nothing Then hesaplar = New hesapplani(Me)

        hesaplar.ShowDialog()
    End Sub

    
End Class

[AceInfinity]

Since your class hesapplani is Interiting a form, and drawing a DataGridView on it from what it looks like, you need to reference the instance of hesapplani to access the datagridview control on that form.

[Black_Trouble]

I wanted to do this event. selected MaskedTextBox future. To do this I created the usercontrol.

[Black_Trouble]

Since your class hesapplani is Interiting a form, and drawing a DataGridView on it from what it looks like, you need to reference the instance of hesapplani to access the datagridview control on that form.

How do I make my teacher trying to make it up and down for a month. I did not get an answer from anyone.

[AceInfinity]

How do I make my teacher trying to make it up and down for a month. I did not get an answer from anyone.

Up down for a month? I'm confused.

I think the reason why you haven't been getting much help is not really your fault. It's more likely because people are having a hard time understanding what you want to do exactly through what you've been explaining thus far in this thread. I know for myself, that i'm having this particular issue right now as well, if others haven't already.

If you know what you want to do (I hope you do anyways lol), then as I've said, it's just as simple as using that instance to access the controls on that form to do stuff with them.

Example:

Dim frm1 As New Form1()

We don't use Form1 to access the controls, we use frm1 instead because it is the INSTANCE of Form1, not the Class Form1. Same principle with hesapplani.

[Black_Trouble]

I called many of the answer in the forum but no one answered. I do not understand where you need to attach this code to write. teacher if you can control from start to finish so that he can not tell you how grateful I'm going. I just started vb.net counted. but it's never been so helpless.

[Black_Trouble]

still not found a solution. Do not have anyone that can help

[Black_Trouble]

he looked up to people, but found a solution.