SVP pourquoi ce code ne fonctionne pas -editer datagrid-

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SVP pourquoi ce code ne fonctionne pas -editer datagrid-?

Code:

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Protected Sub DataGrid1_CancelCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.CancelCommand
        Me.DataGrid1.EditItemIndex = -1
        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()
    End Sub

    Protected Sub DataGrid1_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.EditCommand
        Me.DataGrid1.EditItemIndex = e.Item.ItemIndex
        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()
    End Sub


    Protected Sub DataGrid1_UpdateCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.UpdateCommand
        Dim lastname As String = CType(e.Item.Cells(2).Controls(0), TextBox).Text
        Dim id As String = Me.DataGrid1.DataKeys(e.Item.ItemIndex)
        MsgBox(lastname)
        con.Open()

        Dim cmd As New System.Data.SqlClient.SqlCommand("update employees set lastname='" & lastname & "' where employeeid='" & id & "'")
        cmd.Connection = con
        cmd.ExecuteNonQuery()
        con.Close()
        Me.DataGrid1.EditItemIndex = -1


        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()



    End Sub
    Dim con As New System.Data.SqlClient.SqlConnection("Data Source=UNICORNI-83C0A9;Initial Catalog=Northwind;Integrated Security=True")
    Dim da As New System.Data.SqlClient.SqlDataAdapter()
    Dim ds As New System.Data.DataSet
    Dim com As New System.Data.SqlClient.SqlCommand
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        com.CommandText = "select employeeid,lastname,firstname from employees"
        com.Connection = con
        da.SelectCommand = com
        da.Fill(ds, "emp")
        Me.DataGrid1.DataSource = ds
        Me.DataGrid1.DataBind()
    End Sub

lastname prend la valeur de la cellule et pas texte qui je saisi.

Salut mat,

l'édition ne pourra pas marcher puisqu'à chaque chargement de page, tu recharges ton datagrid avec ses valeurs initiales (celles de la BDD).

Si tu veux éviter ce problème, je te conseille le code suivant :
Code:

1 2 3 4 5 6 7 8 9 10 11 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load com.CommandText = "select employeeid,lastname,firstname from employees" com.Connection = con da.SelectCommand = com if page.ispostback = false then da.Fill(ds, "emp") Me.DataGrid1.DataSource = ds Me.DataGrid1.DataBind() end if End Sub

18/05/2009, 14h39
mat.net

Merci,
mais quand je clique sur modifier le datagrid se cache,je sais pas comment faire, est ce qu'il y un autre problème? ou..

Essaies plutôt ce code alors :

Code:

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Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        com.CommandText = "select employeeid,lastname,firstname from employees"
        com.Connection = con
        da.SelectCommand = com
Me.DataGrid1.DataSource = ds

 if page.ispostback = false then
        da.Fill(ds, "emp")
                Me.DataGrid1.DataBind()
end if
    End Sub

18/05/2009, 21h22
mat.net

Il me donne un messge:

Citation:

Le IListSource ne contient pas de source de données

GRAN MERCI
il fonction avec le code:

Code:

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 Protected Sub DataGrid1_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.EditCommand
       Me.DataGrid1.DataSource = ds     'ceci le joker
        Me.DataGrid1.EditItemIndex = e.Item.ItemIndex

        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()
    End Sub

le code complet:

Code:

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   Protected Sub DataGrid1_CancelCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.CancelCommand
        Me.DataGrid1.DataSource = ds
        Me.DataGrid1.EditItemIndex = -1
        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()
    End Sub
 
    Protected Sub DataGrid1_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.EditCommand
        Me.DataGrid1.DataSource = ds
        Me.DataGrid1.EditItemIndex = e.Item.ItemIndex
 
        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()
    End Sub
 
 
    Protected Sub DataGrid1_UpdateCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.UpdateCommand
        Dim lastname As String = CType(e.Item.Cells(3).Controls(0), TextBox).Text
        Dim id As String = Me.DataGrid1.DataKeys(e.Item.ItemIndex)
        MsgBox(lastname)
        con.Open()
 
        Dim cmd As New System.Data.SqlClient.SqlCommand("update employees set lastname='" & lastname & "' where employeeid='" & id & "'")
        cmd.Connection = con
        cmd.ExecuteNonQuery()
        con.Close()
        Me.DataGrid1.DataSource = ds
        Me.DataGrid1.EditItemIndex = -1
 
        da.Fill(ds, "emp")
        Me.DataGrid1.DataBind()
 
 
 
    End Sub
    Dim con As New System.Data.SqlClient.SqlConnection("Data Source=UNICORNI-83C0A9;Initial Catalog=Northwind;Integrated Security=True")
    Dim da As New System.Data.SqlClient.SqlDataAdapter()
    Dim ds As New System.Data.DataSet
    Dim com As New System.Data.SqlClient.SqlCommand
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        com.CommandText = "select employeeid,lastname,firstname from employees"
        com.Connection = con
        da.SelectCommand = com
 
 
        If Page.IsPostBack = False Then
 
            da.Fill(ds, "emp")
 
            Me.DataGrid1.DataSource = ds
            Me.DataGrid1.DataBind()
        End If
    End Sub

merci encore
predalpha