我尝试在gridview中将文件下载到我的数据库中，但是当我单击下载链接时没有任何反应。
这是我的aspx.code
<asp:GridView CssClass="table table-striped responsive" ID="GridView1" runat="server" AllowSorting="True" AllowPaging="True" AutoGenerateColumns="False" DataKeyNames="NoSurat" OnPageIndexChanging="GridView1_PageIndexChanging" OnRowDeleting="GridView1_RowDeleting" OnSorting="GridView1_Sorting" PageSize="5">
<Columns>
<asp:TemplateField HeaderText="No Surat">
<ItemTemplate>
<asp:Label ID="lblIDs" runat="server" Text='<%# Eval("NoSurat")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblID" runat="server" Text='<%# Eval("NoSurat")%>'></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Perihal" HeaderText="Perihal" SortExpression="Perihal" />
<asp:BoundField DataField="AsalSurat" HeaderText="Asal Surat" SortExpression="AsalSurat" />
<asp:BoundField DataField="IsiSurat" HeaderText="Isi Surat" SortExpression="IsiSurat" />
<asp:BoundField DataField="tglsurat_terima" HeaderText="Tanggal Diterima" SortExpression="tglsurat_terima" />
<asp:BoundField DataField="tglsurat_kirim" HeaderText="Tanggal Dikirim" SortExpression="tglsurat_kirim" />
<asp:BoundField DataField="keterangan" HeaderText="Ket Surat" SortExpression="keterangan" />
<asp:BoundField DataField="namesScan" HeaderText="Nama File" SortExpression="namesScan" />
<asp:BoundField DataField="tglupload" HeaderText="Tanggal Upload Surat" SortExpression="tglupload" />
<asp:TemplateField HeaderText="Actions" ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Delete" CssClass="btn btn-danger glyphicon glyphicon-trash" OnClientClick="return confirm('Anda yakin untuk menghapus?'); "></asp:LinkButton>
<asp:LinkButton ID="lnkDownload" runat="server" Text="Download" OnClick="lnkDownload_Click"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
还有我的代码
protected void lnkDownload_Click(object sender, EventArgs e)
{
con1 = ConfigurationManager.ConnectionStrings["MyConnection"].ConnectionString;
LinkButton lnkbtn = sender as LinkButton;
GridViewRow gvrow = lnkbtn.NamingContainer as GridViewRow;
string fileid = Convert.ToString(GridView1.DataKeys[gvrow.RowIndex].Value.ToString());
string name, type;
using (SqlConnection con = new SqlConnection(con1))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select namesScan, contentType, DataSurat from SrtMasuk where NoSurat=@NoSurat";
cmd.Parameters.AddWithValue("@NoSurat", fileid);
cmd.Connection = con;
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
Response.ContentType = dr["contentType"].ToString();
Response.AddHeader("Content-Disposition",
"attachment;filename=\"" + dr["namesScan"] + "\"");
Response.BinaryWrite((byte[])dr["DataSurat"]);
Response.End();
}
}
}
}
我的连接字符串
<connectionStrings>
<add name="MyConnection" connectionString="Data Source=HABIBDEA;Initial Catalog=kopma;Persist Security Info=True;User ID=sa;Password=ilovedea1" providerName="System.Data.SqlClient" />
<add name="kopmaConnectionString" connectionString="Data Source=HABIBDEA;Initial Catalog=kopma;User ID=sa;Password=ilovedea1"
providerName="System.Data.SqlClient" />
<add name="kopmaConnectionString2" connectionString="Data Source=HABIBDEA;Initial Catalog=kopma;Persist Security Info=True;User ID=sa;Password=ilovedea1"
providerName="System.Data.SqlClient" />
如果我尝试下载，没有事件/什么也没有发生，请在代码错误的地方？，我认为没有代码不正确，但是为什么单击下载时什么也没发生？
将属性添加到您的GridView中
OnRowCommand="GridView1_RowCommand"
添加到您的CodeBehind
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
switch (e.CommandName)
{
case "Download":
string fileid = e.CommandArgument;
并将您的LinkButton更改为
<asp:LinkButton ID="lnkDownload" runat="server" CommandArgument='<%# Eval("NoSurat") %>'
Text="Download" CommandName="Download"></asp:LinkButton>
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我来说两句