How to check a check box automatically on vb.net asp.net? - asp.net

Question

i have to insert some data value and value like this picture on insert.aspx
And how i show like this to update the data update.aspx
So how to make check box on update.aspx check automatic like on insert.aspx
on Insert.aspx.vb
Protected Sub insertdata()
Dim cls As New connections
cls.openconnections()
Dim cmd As New SqlClient.SqlCommand
cmd.Connection = cls.cn
cmd.CommandType = CommandType.StoredProcedure
cmd.CommandText = "sp_inserttrainer"
cmd.Parameters.AddWithValue("#id", txtKode.Text)
cmd.Parameters.AddWithValue("#nama", txtnama.Text)
cmd.Parameters.AddWithValue("#status", txtstatus.SelectedValue)
cmd.Parameters.AddWithValue("#alamat", txtalamat.Text)
cmd.Parameters.AddWithValue("#telp", txttel.Text)
cmd.Parameters.AddWithValue("#hp", txthp.Text)
cmd.Parameters.AddWithValue("#email", txtemail.Text)
cmd.ExecuteNonQuery()
cls.closeconnection()
End Sub
Protected Sub savedatamateri()
Dim cbterpilih As Boolean = False
Dim cb As CheckBox = Nothing
Dim n As Integer = 0
Do Until n = gridsecond.Rows.Count
cb = gridsecond.Rows.Item(n).FindControl("chkStatus")
If cb IsNot Nothing AndAlso cb.Checked Then
cbterpilih = True
Dim cls As New connections
cls.openconnections()
Dim cmd As New SqlClient.SqlCommand
cmd.Connection = cls.cn
cmd.CommandText = "Insert Into m_trainer_detil (trainer_id, materi_id)"
cmd.CommandText &= "values(#triner, #materi)"
Dim com As HiddenField = CType(gridsecond.Rows(n).FindControl("HiddenField2"), HiddenField)
cmd.Parameters.AddWithValue("#triner", txtKode.Text)
cmd.Parameters.AddWithValue("#materi", com.Value)
cmd.ExecuteNonQuery()
cls.closeconnection()
End If
n += 1
Loop
End Sub
Protected Sub insert_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles insert.Click
If txtalamat.Text = "" Then
labelran.Text = "Tolong isi Alamat"
ElseIf txtemail.Text = "" Then
labelran.Text = "Tolong isi Email"
ElseIf txtnama.Text = "" Then
labelran.Text = "Tolong isi Nama"
ElseIf txttel.Text = "" Then
labelran.Text = "Tolong isi Telepon"
ElseIf txthp.Text = "" Then
labelran.Text = "Tolong isi Handphone"
Else
insertdata()
savedatamateri()
listhendle()
End If
End Sub
and for update.aspx.vb
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
listhendle()
listmateri()
End If
End Sub
Protected Sub listhendle()
Dim ds As New DataSet
Dim cls As New connections
ds = cls.returndataset("select * from [m_trainer] ")
If ds.Tables(0).Rows.Count = 0 Then
ds.Tables(0).Rows.Add(ds.Tables(0).NewRow)
End If
griddata.DataSource = ds
griddata.DataBind()
End Sub
Protected Sub listmateri()
Dim ds As New DataSet
Dim cls As New connections
ds = cls.returndataset("select * from [m_materi] ")
If ds.Tables(0).Rows.Count = 0 Then
ds.Tables(0).Rows.Add(ds.Tables(0).NewRow)
End If
gridsecond.DataSource = ds
gridsecond.DataBind()
End Sub
Protected Sub griddata_SelectedIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewSelectEventArgs) Handles griddata.SelectedIndexChanging
Dim kode As HiddenField = CType(griddata.Rows(e.NewSelectedIndex).FindControl("HiddenField1"), HiddenField)
txtKode.Text = kode.Value
txtnama.Text = Replace(griddata.Rows(e.NewSelectedIndex).Cells(1).Text, " ", "")
txtalamat.Text = Replace(griddata.Rows(e.NewSelectedIndex).Cells(2).Text, " ", "")
txttel.Text = Replace(griddata.Rows(e.NewSelectedIndex).Cells(3).Text, " ", "")
txthp.Text = Replace(griddata.Rows(e.NewSelectedIndex).Cells(4).Text, " ", "")
txtstatus.SelectedValue = Replace(griddata.Rows(e.NewSelectedIndex).Cells(5).Text, " ", "")
txtemail.Text = Replace(griddata.Rows(e.NewSelectedIndex).Cells(6).Text, " ", "")
End Sub
But i don't know how connect materi with database
Thank You

Answer 1

It looks like you are storing the materi_id in the table m_trainer. So it looks like you would need to set up an OnRowDataBound event on your "gridSecond" GridView. Within the OnRowDatabound event get a dataset for the selected trainer_id and if the materi_id exists within that dataset set its checked value as true.