Download PDF file which contains spaces in file name using C# in ASP.Net

Hi yinyang205,

As per your question i have created sample. Refer the below code.

HTML

<asp:GridView runat="server" ID="GridView1" AutoGenerateColumns="false">
    <Columns>
        <asp:TemplateField HeaderText="DisplayLink">
            <ItemTemplate>
                <asp:HyperLink runat="server" ID="h1" NavigateUrl='<%# Eval("Filename_Link", "~/{0}") %>'
                    Visible='<%# Convert.ToInt32(Eval("Equipment")) <= 0? true: false %>' Text="DisplayLink"> </asp:HyperLink>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[3] 
        { 
            new DataColumn("Id", typeof(int)),
            new DataColumn("Filename_Link"),
            new DataColumn("Equipment", typeof(int))
        });
        dt.Rows.Add(1, "siteURL/apple orange banana.pdf", 0);
        dt.Rows.Add(2, "siteURL/computer printer phone.pdf", 0);
        dt.Rows.Add(3, "siteURL/apple_orange_banana.pdf", 1);
        dt.Rows.Add(4, "siteURL/computer_printer_phone.pdf", 0);
        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
}

VB.Net

Protected Sub Page_Load(sender As Object, e As EventArgs)
	If Not Me.IsPostBack Then
		Dim dt As New DataTable()
		dt.Columns.AddRange(New DataColumn(2) {New DataColumn("Id", GetType(Integer)), New DataColumn("Filename_Link"), New DataColumn("Equipment", GetType(Integer))})
		dt.Rows.Add(1, "siteURL/apple orange banana.pdf", 0)
		dt.Rows.Add(2, "siteURL/computer printer phone.pdf", 0)
		dt.Rows.Add(3, "siteURL/apple_orange_banana.pdf", 1)
		dt.Rows.Add(4, "siteURL/computer_printer_phone.pdf", 0)
		GridView1.DataSource = dt
		GridView1.DataBind()
	End If
End Sub

Screenstot