.net导出excel

最新推荐文章于 2023-01-30 22:44:09 发布

换个什么名字

最新推荐文章于 2023-01-30 22:44:09 发布

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本文介绍了一个HTML页面，包含在线打开与本地保存功能，通过ASP.NET实现数据源选择、文件类型输出，并提供了数据源填充与输出代码示例。

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html页面

        <asp:Button ID="cmdOpen" runat="server" Text="在线打开" CommandName="open" OnCommand="Button_Click" /> <asp:Button ID="cmdSave"
            runat="server" Text="本地保存" CommandName="save" OnCommand="Button_Click" />
        <asp:DropDownList ID="listType" runat="server">
            <asp:ListItem Value="excel">Excel</asp:ListItem>
            <asp:ListItem Value="word">Word</asp:ListItem>
        </asp:DropDownList><br />
        <br />
        数据源：<br />
        <br />
        <asp:GridView ID="myGW" runat="server">
        </asp:GridView>

</div></form>

后台代码

protected void Page_Load(object sender, EventArgs e)
    {
        FillGridView();
    }
    private void OutPut(string fileType, string strType)
    {
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", fileType);
        Response.ContentType = strType;
        this.EnableViewState = false;
        System.IO.StringWriter swOut = new System.IO.StringWriter();
        HtmlTextWriter hTw = new HtmlTextWriter(swOut);
        myGW.RenderControl(hTw);
        Response.Write(swOut.ToString());
        Response.End();
    }
    protected void Button_Click(object sender, CommandEventArgs e)
    {
        switch (e.CommandName)
        {
            case "save":
                switch (listType.SelectedValue)
                {
                    case "excel":
                        OutPut("attachment;filename=out.xls", "application/ms-excel");
                        break;
                    case "word":
                        OutPut("attachment;filename=out.doc", "application/ms-word");
                        break;
                }
                break;
            case "open":
                switch (listType.SelectedValue)
                {
                    case "excel":
                        OutPut("online;filename=out.xls", "application/ms-excel");
                        break;
                    case "word":
                        OutPut("online;filename=out.doc", "application/ms-word");
                        break;
                }
                break;
        }
    }
    public override void VerifyRenderingInServerForm(Control control)
    {
    }
    private void FillGridView()
    {
        string strConn = "server=localhost\\sqlexpress;database=Northwind;user id=sa;password=sa123";
        SqlConnection conn = new SqlConnection(strConn);
        SqlCommand comm = new SqlCommand();
        comm.Connection = conn;
        string strSql = "select * from Categories";
        comm.CommandText = strSql;
        conn.Open();
        this.myGW.DataSource = comm.ExecuteReader();
        this.myGW.DataBind();
        conn.Close();
    }