asp.net点击增多多行文件上传 删除

asp.net点击增加多行文件上传 删除

前台页面：

<div style="display:none">
<asp:NumberTextBox runat="server" ID="aaas"></asp:NumberTextBox></div>
<h2 class="mt10">促品/宣传物料信息</h2>

<asp:Repeater ID="Repeater1" runat="server">
<HeaderTemplate>
?<table border="0" cellspacing="0" cellpadding="0"? class="info_tab1 mt10" width="100%">
????? <tr>
??????? <%--<th? style="width:5%">序号</th>
??????? <th? width="12%">礼品名称</th>
??????? <th width="10%">生产量</th>
??????? <th width="10%">生产成本(元)</th>
??????? <th width="10%">生产厂家</th>
??????? <th width="10%">备注</th>
??????? <th width="10%">使用方法</th>
??????? <th width="10%">详细说明</th>
??????? <th width="19%">物料图片</th>
??????? <th >操作</th>--%>
??????? <th? >序号</th>
??????? <th? >礼品名称</th>
??????? <th >生产量</th>
??????? <th >生产成本(元)</th>
??????? <th >生产厂家</th>
??????? <th >备注</th>
??????? <th >使用方法</th>
??????? <th >详细说明</th>
??????? <th >物料图片</th>
??????? <th >操作</th>
????? </tr>
</HeaderTemplate>
????? <ItemTemplate>
????? <tr >
????? <td >
??????? <%#Container.ItemIndex + 1%>
??????? </td>
??????? <td ><span class="redf">
???????? <asp:HiddenField ID="materialResourceID" runat="server" Value='<%#DataBinder.eval_r(Container.DataItem, "resource_id")%>' />
??????? <asp:TextBox ID="giftname"? size="13" MaxLength="40"? runat="server" Text='<%#DataBinder.eval_r(Container.DataItem, "present_name")%>'></asp:TextBox>
??????? <span class="title_red">*</span>
???????? </span>
???????? </td>
??????? <td >
?????? <asp:NumberTextBox ID="producenum" size="13" MaxLength="10"? runat="server" Model="Decimal" NumberOfDecimals="2" Text='<%#DataBinder.eval_r(Container.DataItem, "produce_count")%>'></asp:NumberTextBox>
??????? </td>
??????? <td ><span class="redf">
???????? <asp:NumberTextBox ID="producecost" size="13" MaxLength="10"? runat="server" Model="Decimal" NumberOfDecimals="2" Text='<%#DataBinder.eval_r(Container.DataItem, "produce_price")%>'></asp:NumberTextBox>
??????? </span></td>
??????? <td ><span class="redf">
????????? <asp:TextBox ID="producecompany" size="13" MaxLength="40"? runat="server" Text='<%#DataBinder.eval_r(Container.DataItem, "produce_vender")%>'></asp:TextBox>
??????? </span></td>
??????? <td ><span class="redf">
????????? <asp:TextBox ID="giftremark" size="13" MaxLength="90"? runat="server" Width="108px" Text='<%#DataBinder.eval_r(Container.DataItem, "remarks")%>'></asp:TextBox>
??????? </span></td>
??????? <td ><span class="redf">
????????? <asp:TextBox ID="usemethod" size="13" MaxLength="90"? runat="server" Width="117px" Text='<%#DataBinder.eval_r(Container.DataItem, "use_type")%>'></asp:TextBox>
??????? </span></td>
??????? <td >
??????? <span class="redf">
???????? <asp:TextBox ID="detailinfo" size="13" MaxLength="90"? runat="server" Width="105px" Text='<%#DataBinder.eval_r(Container.DataItem, "instraction")%>'></asp:TextBox>
??????? </span>
??????? </td>
???????? <td>
???????
?????? <asp:HiddenField? ID="PicFilePathLink" runat="server"? Value='<%#DataBinder.eval_r(Container.DataItem, "PicFilePathLink")%>' />
?????? <asp:UpdatePanel ID="UpdatePanel4" runat="server" RenderMode="Block" UpdateMode="Conditional">
??????? <Triggers>
??????? <asp:PostBackTrigger ControlID="LinkButton3" />
????????????? </Triggers>
?????? </asp:UpdatePanel>
???? <asp:HyperLink ID="HyperLink2" runat="server" Target="_blank" Visible='<%#DataBinder.eval_r(Container.DataItem, "urlLinkVisiblity")%>' Text='<%#DataBinder.eval_r(Container.DataItem, "pic_filepath")%>'></asp:HyperLink>
???? <asp:LinkButton Visible='<%#DataBinder.eval_r(Container.DataItem, "urlLinkVisiblity")%>' ID="LinkButton3" Text="[X]" runat="server" OnCommand="sell_delFile_Click" CommandName='<%#DataBinder.eval_r(Container.DataItem, "resource_id")%>'>
???? </asp:LinkButton>
?????? <asp:HiddenField ID="HiddenField2" runat="server"??? />
????? <asp:UpdatePanel ID="UpdatePanel5" runat="server" Visible='<%#DataBinder.eval_r(Container.DataItem, "uploadVisiblity")%>' RenderMode="Block" UpdateMode="Conditional">
???????????? <ContentTemplate>
??????????????? <asp:FileUpload ID="FileUpload2" runat="server" Width="250px"? onchange="PreviewImg_sell(this);"? /></ContentTemplate>
???????????????????? <Triggers>
????????????????????????? <asp:PostBackTrigger ControlID="LinkButton4" />
???????????????????? </Triggers>
?? </asp:UpdatePanel>
?? <asp:LinkButton ID="LinkButton4" runat="server" style="display:none" Text="aa" OnClick="sell_MaterialUpload_Click"></asp:LinkButton>?
??????????????
??????????? </td>
?????????? <td>
?????????? <asp:LinkButton runat="server" ID="deleteBtn" OnCommand="deleteBtn_Click" CommandName='<%#DataBinder.eval_r(Container.DataItem, "resource_id")%>'?? Text="删除"></asp:LinkButton>
?????????
?????????? </td>
??? </tr>
??? </ItemTemplate>
??????????? <FooterTemplate>
??????????????? </table>
??????????? </FooterTemplate>
??????? </asp:Repeater>
?
???????
???????
???????
???????
???????
???????
<div class="alignr pad10">选择产品数：<asp:DropDownList runat="server" ID="addProduceNumber">
<asp:ListItem Text="1" Value="1"></asp:ListItem>
<asp:ListItem Text="2" Value="2"></asp:ListItem>
<asp:ListItem Text="3" Value="3"></asp:ListItem>
<asp:ListItem Text="4" Value="4"></asp:ListItem>
<asp:ListItem Text="5" Value="5"></asp:ListItem>
<asp:ListItem Text="6" Value="6"></asp:ListItem>
<asp:ListItem Text="7" Value="7"></asp:ListItem>
<asp:ListItem Text="8" Value="8"></asp:ListItem>
<asp:ListItem Text="9" Value="9"></asp:ListItem>
<asp:ListItem Text="10" Value="10"></asp:ListItem>
</asp:DropDownList>
??? <asp:Button Text="增 加" runat="server" ID="addProduceBtn"?? OnClick="addMaterialBtn_Click" CssClass="btn_sorange" /></div>
?

<div class="alignc pb20 pt20">
?<asp:Button? ID="PromotionPlan" class="btn_sub"?? Text="提交" runat="server"? OnClientClick='return check_input_null(CheckList);'
??????? onclick="SavePromotionPlan_Click"></asp:button>
???? <asp:LinkButton runat="server" Text="保存草稿" ID="saveCBtn"?? OnClientClick='return check_input_null(CheckList);'? OnClick="saveCBtn_Click"?? ></asp:LinkButton>
?
</div>

?

?

后台处理：

?public DataTable GridViewDataTable
??????? {
??????????? get { return ViewState["GridViewDataTable"] == null ? null : (DataTable)ViewState["GridViewDataTable"]; }
??????????? set { ViewState["GridViewDataTable"] = value; }
??????? }

?public void fileUpload_material()
??????? {

??????????? FileUpload FileUpload2 = new FileUpload();
??????????? HiddenField HiddenField2 = new HiddenField();
??????????? LinkButton LinkButton3 = new LinkButton();
??????????? HyperLink HyperLink2 = new HyperLink();
??????????? HiddenField PicFilePathLink = new HiddenField();

??????????? foreach (RepeaterItem item in this.Repeater1.Items)
??????????? {

??????????????? FileUpload2 = (FileUpload)item.FindControl("FileUpload2");
??????????????? HiddenField2 = (HiddenField)item.FindControl("HiddenField2");
??????????????? LinkButton3 = (LinkButton)item.FindControl("LinkButton3");
??????????????? HyperLink2 = (HyperLink)item.FindControl("HyperLink2");
??????????????? PicFilePathLink = (HiddenField)item.FindControl("PicFilePathLink");
??????????????? if (FileUpload2.PostedFile != null && FileUpload2.PostedFile.ContentLength > 0)
??????????????? {
??????????????????? string ext = System.IO.Path.GetExtension(FileUpload2.PostedFile.FileName).ToLower();
??????????????????? if (ext != ".jpg" && ext != ".jepg" && ext != ".bmp" && ext != ".gif" && ext != ".png")
??????????????????? {
??????????????????????? this.Alert("请上传（*.jpg,*.jepg,*.bmp,*.gif,*.png)格式的图片！");
??????????????????????? return;
??????????????????? }
??????????????????? string dir = Server.MapPath(PRODUCE_TEMP_FILE_PATH);
??????????????????? if (Directory.Exists(dir) == false)
??????????????????? {
??????????????????????? Directory.CreateDirectory(dir);
??????????????????? }
??????????????????? string filename = DateTime.Now.ToString("yyyyMMddHHmmssffff") + ext;
??????????????????? string path = PRODUCE_TEMP_FILE_PATH + filename;
??????????????????? FileUpload2.PostedFile.SaveAs(Server.MapPath(path));
??????????????????? HiddenField2.Value = path;
??????????????????? FileUpload2.Visible = false;
??????????????????? LinkButton3.Visible = true;
??????????????????? HyperLink2.Visible = true;
??????????????????? HyperLink2.Text = FileUpload2.FileName;
??????????????????? HyperLink2.NavigateUrl = path;
??????????????????? PicFilePathLink.Value = path;
??????????????????? break;

??????????????? }
??????????????? else
??????????????? {
??????????????????? //do some thing;
???????????????????
??????????????? }

??????????? }

??????????
??????? }

??????? protected void sell_MaterialUpload_Click(object sender, EventArgs e)
??????? {
??????????? //FileUpload fu = (FileUpload)((LinkButton)sender).Parent.FindControl("FileUpload2");
??????????
??????????? // string str = fu.PostedFile.FileName;
??????????? fileUpload_material();
??????? }

??????? protected void sell_delFile_Click(object sender, CommandEventArgs e)
??????? {
??????????? string resourceid = e.CommandName;
??????????? DataTable dt = GridViewDataTable;
??????????? refresh_Repeater(dt);
??????????? foreach (DataRow dr in dt.Rows)
??????????? {
??????????????? if (resourceid.Equals(dr["resource_id"]))
??????????????? {
??????????????????? string path = dr["PicFilePathLink"].ToString();
??????????????????? path = Server.MapPath(path);
??????????????????? FileInfo file = new FileInfo(path);

??????????????????? if (file.Exists)
??????????????????? {
??????????????????????? file.Delete();
??????????????????? }
??????????????????? dr["pic_filepath"] = "";
??????????????????? //dr["PicFilePathLink"] = "";
??????????????????? dr["urlLinkVisiblity"] = false;
??????????????????? dr["uploadVisiblity"] = true;
??????????????????? break;
??????????????? }
??????????? }
??????????? Repeater1.DataSource = dt;
??????????? Repeater1.DataBind();
?????????? }
??????
???????
??????? //---------------------------------------------------

??????? private DataTable getInitDataTable(DataTable dt)
??????? {
??????????? if (dt == null)
??????????? {
??????????????? dt = new DataTable();
??????????????? DataColumn dc;
??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "resource_id";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

?

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "present_name";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "produce_count";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "produce_price";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "produce_vender";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "remarks";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "use_type";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "instraction";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "pic_filepath";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

?

?

?

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.Boolean");
??????????????? dc.ColumnName = "uploadVisiblity";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.Boolean");
??????????????? dc.ColumnName = "urlLinkVisiblity";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);

??????????????? dc = new DataColumn();
??????????????? dc.DataType = System.Type.GetType("System.String");
??????????????? dc.ColumnName = "PicFilePathLink";
??????????????? dc.ReadOnly = false;
??????????????? dc.Unique = false;
??????????????? dt.Columns.Add(dc);
??????????? }
??????????? return dt;
??????? }

? protected void addMaterialBtn_Click(object sender, EventArgs e)
??????? {
??????????? DataTable dt = GridViewDataTable;
??????????
??????????? dt = getInitDataTable(dt);
??????????????? refresh_Repeater(dt);
??????????????? for (int i = 0; i < Convert.ToInt16(addProduceNumber.SelectedValue); i++)
??????????????? {
??????????????????? DataRow dr = dt.NewRow();
??????????????????? dr["resource_id"] = System.Guid.NewGuid().ToString();
??????????????????? dr["present_name"] = "";
??????????????????? dr["produce_count"] = "0";
??????????????????? dr["produce_price"] = "0";
??????????????????? dr["produce_vender"] = "";
??????????????????? dr["remarks"] = "";
??????????????????? dr["use_type"] = "";
??????????????????? dr["pic_filepath"] = "";
??????????????????? dr["instraction"] = "";
??????????????????? dr["uploadVisiblity"] = true;
??????????????????? dr["PicFilePathLink"] = "";
??????????????????? dr["urlLinkVisiblity"] = false;
??????????????????? dt.Rows.Add(dr);
??????????????? }
??????????????? GridViewDataTable = dt;
??????????????? Repeater1.DataSource = GridViewDataTable;
??????????????? Repeater1.DataBind();

??????????
??????? }

??????? private void refresh_Repeater(DataTable dt)
??????? {
??????????? foreach (RepeaterItem item in this.Repeater1.Items)
??????????? {
??????????????? TextBox tN = (TextBox)item.FindControl("giftname");
??????????????? if (tN != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["present_name"] = tN.Text;
??????????????? }
??????????????? NumberTextBox pN = (NumberTextBox)item.FindControl("producenum");
??????????????? if (pN != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["produce_count"] =pN.Text;
??????????????? }
??????????????? NumberTextBox std = (NumberTextBox)item.FindControl("producecost");
??????????????? if (std != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["produce_price"] = std.Text;
??????????????? }
??????????????? TextBox mq = (TextBox)item.FindControl("producecompany");
??????????????? if (mq != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["produce_vender"] = mq.Text;
??????????????? }
??????????????? TextBox co = (TextBox)item.FindControl("giftremark");
??????????????? if (co != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["remarks"] = co.Text;
??????????????? }
??????????????? TextBox rp = (TextBox)item.FindControl("usemethod");
??????????????? if (rp != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["use_type"] = rp.Text;
??????????????? }
??????????????? TextBox wp = (TextBox)item.FindControl("detailinfo");
??????????????? if (wp != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["instraction"] = wp.Text;
??????????????? }

??????????????? HiddenField hf = (HiddenField)item.FindControl("materialResourceID");
??????????????? if (hf != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["resource_id"] = hf.Value;
??????????????? }

??????????????? HiddenField picl = (HiddenField)item.FindControl("PicFilePathLink");
??????????????? if (picl != null)
??????????????? {
??????????????????? dt.Rows[item.ItemIndex]["PicFilePathLink"] = picl.Value;
??????????????? }

?

???????????????? dt.Rows[item.ItemIndex]["uploadVisiblity"] = true;
???????????????? HyperLink? HL2 = (HyperLink)item.FindControl("HyperLink2");
??????????????? if(HL2!=null){
??????????????????? dt.Rows[item.ItemIndex]["pic_filepath"] = HL2.Text;
??????????????????? if (!string.IsNullOrEmpty(HL2.Text))
??????????????????? {
??????????????????????? dt.Rows[item.ItemIndex]["uploadVisiblity"] = false;
??????????????????????? dt.Rows[item.ItemIndex]["urlLinkVisiblity"] = true;
??????????????????? }
??????????????????? else
??????????????????? {
??????????????????????? dt.Rows[item.ItemIndex]["uploadVisiblity"] = true;
??????????????????????? dt.Rows[item.ItemIndex]["urlLinkVisiblity"] = false;
??????????????????? }
??????????????? }

?

??????????????
??????????? }
??????? }
??????
??????? protected void deleteBtn_Click(object sender, CommandEventArgs e)
??????? {
??????????? string resourceid = e.CommandName;
??????????? DataTable dt = GridViewDataTable;
??????????? refresh_Repeater(dt);
??????????? foreach (DataRow dr in dt.Rows)
??????????? {
??????????????? if (resourceid.Equals(dr["resource_id"]))
??????????????? {
??????????????????? dr.Delete();
??????????????????? break;
??????????????? }
??????????? }
?????????
??????????? GridViewDataTable = dt;
??????????? Repeater1.DataSource = GridViewDataTable;
??????????? Repeater1.DataBind();
??????? }

??????? protected List<ProductSellMaterialEntity> getProduceMaterialList(string productSellPlanID)
??????? {
??????????? List<ProductSellMaterialEntity> list = new List<ProductSellMaterialEntity>();
??????????? foreach (RepeaterItem item in this.Repeater1.Items)
??????????? {
??????????????? ProductSellMaterialEntity psm = new ProductSellMaterialEntity();

?

??????????????
??????????????? TextBox tN = (TextBox)item.FindControl("giftname");
??????????????
??????????????? if (tN != null)
??????????????? {
??????????????????? psm.PresentName = tN.Text;
??????????????????? if (string.IsNullOrEmpty(psm.PresentName))
??????????????????? {
??????????????????????? return null;
??????????????????? }

??????????????? }
??????????????? NumberTextBox pN = (NumberTextBox)item.FindControl("producenum");
??????????????? if (pN != null)
??????????????? {
??????????????????? psm.ProduceCount =Convert.ToDecimal(pN.Text);
??????????????? }
??????????????? NumberTextBox std = (NumberTextBox)item.FindControl("producecost");
??????????????? if (std != null)
??????????????? {
??????????????????? psm.ProducePrice = Convert.ToDecimal(std.Text);
??????????????? }
??????????????? TextBox mq = (TextBox)item.FindControl("producecompany");
??????????????? if (mq != null)
??????????????? {
??????????????????? psm.ProduceVender= mq.Text;
??????????????? }
??????????????? TextBox co = (TextBox)item.FindControl("giftremark");
??????????????? if (co != null)
??????????????? {
??????????????????? psm.Remarks = co.Text;
??????????????? }
??????????????? TextBox rp = (TextBox)item.FindControl("usemethod");
??????????????? if (rp != null)
??????????????? {
??????????????????? if (!string.IsNullOrEmpty(rp.Text))
??????????????????? {
????????????????????? psm.UseType = rp.Text;
??????????????????? }
??????????????? }
??????????????? TextBox wp = (TextBox)item.FindControl("detailinfo");
??????????????? if (wp != null)
??????????????? {
??????????????????? if (!string.IsNullOrEmpty(wp.Text))
??????????????????? {
??????????????????????? psm.Instraction = wp.Text;
??????????????????? }
??????????????? }
??????????????

??????????????? HiddenField hf = (HiddenField)item.FindControl("materialResourceID");
??????????????? if (hf != null)
??????????????? {
?????????????????? psm.ResourceId = hf.Value;
??????????????? }
??????????????? HiddenField pf = (HiddenField)item.FindControl("PicFilePathLink");

??????????????? if (pf != null)
??????????????? {
??????????????????

??????????????????? if (!string.IsNullOrEmpty(pf.Value))
??????????????? {

????????????????
??????????????????? string path = Server.MapPath(pf.Value);
??????????????????? string filetype = pf.Value.Substring(pf.Value.LastIndexOf("."));
??????????????????? FileInfo file = new FileInfo(path);
??????????????????? if (file.Exists)
??????????????????? {
??????????????????????? string dir = Server.MapPath(PRODUCE_FILE_PATH);
??????????????????????? if (Directory.Exists(dir) == false)
??????????????????????? {
??????????????????????????? Directory.CreateDirectory(dir);
??????????????????????? }
??????????????????????? string fname = System.Guid.NewGuid().ToString() + filetype;
??????????????????????? string targetFile = dir + fname;
??????????????????????? if (path.IndexOf("ImportFiles") >= 0)
??????????????????????? {
??????????????????????????? file.CopyTo(targetFile);
??????????????????????? }
??????????????????????? psm.PicFilepath = PRODUCE_FILE_PATH + fname;
??????????????????? }
??????????????????? if (path.IndexOf("ImportFiles") >= 0)
??????????????????? {
??????????????????????? FileInfo filetemp = new FileInfo(path);
??????????????????????? filetemp.Delete();
??????????????????? }
??????????????? }

??????? }
??????????????? psm.SellPlanId =productSellPlanID;
??????????????? list.Add(psm);
??????????? }
??????????? return list;
??????? }

?

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?

??????????????????? foreach (ProductSellMaterialEntity psm in list2)
??????????????????? {
??????????????????????? psm.SaveNew(broker);
??????????????????? }

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