在ASP.NET中將VB.net轉換為C＃

Question

我在這個領域很新。 我有用vb.net編寫的腳本，但我想在C＃中進行轉換，但不能作為vb.net代碼使用。因此請幫助。

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="2"
            ForeColor="#333333" GridLines="None" AllowPaging="True">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="lnkdownload" runat="server" Text="Download" CommandName="Download"
                            CommandArgument='<%#Eval("FullName") +";" + Eval("Name") %>'></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Name" HeaderText="File Name" />
                <asp:BoundField DataField="Length" HeaderText="Size (Bytes)" />
            </Columns>
            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
            <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <EditRowStyle BackColor="#999999" />
            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
        </asp:GridView>

。

Private Sub BindGrid()
    Dim DataDirectory As String = "~/Uploads"

    Dim files() As FileInfo = New DirectoryInfo(Server.MapPath(DataDirectory)).GetFiles
    GridView1.DataSource = files
    GridView1.DataBind()


End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    If Not IsPostBack Then
        BindGrid()
    End If
End Sub

Private Sub Downloadfile(ByVal fileName As String, ByVal FullFilePath As String)
    Response.AddHeader("Content-Disposition", "attachment; filename=" & fileName)
    Response.TransmitFile(FullFilePath)
    Response.End()
End Sub

Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
    If e.CommandName = "Download" Then
        Dim fileInfo() As String = e.CommandArgument.ToString().Split(";")
        Dim FileName As String = fileInfo(1)
        Dim FullPath As String = fileInfo(0)
        Downloadfile(FileName, FullPath)
    End If
End Sub

Protected Sub GridView1_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles GridView1.PageIndexChanging
    GridView1.PageIndex = e.NewPageIndex
    BindGrid()

End Sub

Answer 1

這是使用VB.NET到C＃轉換器轉換為c＃的代碼：

private void BindGrid()
{
   string DataDirectory = "~/Uploads";
   FileInfo[] files = new DirectoryInfo(Server.MapPath(DataDirectory)).GetFiles;
   GridView1.DataSource = files;
   GridView1.DataBind();
}

protected void Page_Load(object sender, System.EventArgs e)
{
    if (!IsPostBack) {
        BindGrid();
    }
}

private void Downloadfile(string fileName, string FullFilePath)
{
    Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
    Response.TransmitFile(FullFilePath);
    Response.End();
}

protected void GridView1_RowCommand(object sender,
    System.Web.UI.WebControls.GridViewCommandEventArgs e)
{
    if (e.CommandName == "Download") {
        string[] fileInfo = e.CommandArgument.ToString().Split(";");
        string FileName = fileInfo[1];
        string FullPath = fileInfo[0];
        Downloadfile(FileName, FullPath);
    }
}

protected void GridView1_PageIndexChanging(object sender,
    System.Web.UI.WebControls.GridViewPageEventArgs e)
{
    GridView1.PageIndex = e.NewPageIndex;
    BindGrid();
}

Answer 2

C＃沒有VB.Net那樣的“ Handles”關鍵字，因此看來您的GridView沒有正確連接到必要的處理程序。 嘗試將以下參數添加到GridView標記中：

OnRowCommand="GridView1_RowCommand"

請注意，您還需要對頁面索引更改事件執行相同的操作。