Asp.net 文件上载在更新面板内的gridview中不工作
我在gridview中有文件上传控制，gridview在更新面板中 当我尝试更新gridview时，一切正常，但文件上传的图像路径不保存 请帮帮我 page.aspxAsp.net 文件上载在更新面板内的gridview中不工作,asp.net,datagridview,asp.net-ajax,Asp.net,Datagridview,Asp.net Ajax,我在gridview中有文件上传控制，gridview在更新面板中 当我尝试更新gridview时，一切正常，但文件上传的图像路径不保存 请帮帮我 page.aspx <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="4" CellSpacing="4"
DataKeyNames="pid" ForeColor="Black" ShowHeaderWhenEmpty="True"
GridLines="Horizontal" onrowediting="GridView1_RowEditing"
onrowupdating="GridView1_RowUpdating"
onrowcancelingedit="GridView1_RowCancelingEdit"
onrowdeleting="GridView1_RowDeleting">
<Columns>
<asp:TemplateField HeaderText="Operation">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" ForeColor="#94b52c"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" ForeColor="#94b52c"
OnClientClick="return confirm('Are You Sure Want To Delete ?');"></asp:LinkButton>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemStyle Font-Bold="True" HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Product ID" InsertVisible="False" SortExpression="pid">
<EditItemTemplate>
<asp:Label ID="lblpid" runat="server" Text='<%# Eval("pid") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblproductid" runat="server" Text='<%# Bind("pid") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemStyle Font-Bold="True" HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Product Detail" SortExpression="pdetail">
<EditItemTemplate>
<asp:TextBox ID="txtproductdetail" runat="server" Text='<%# Bind("pdetail") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblproductdetail" runat="server" Text='<%# Bind("pdetail") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemStyle Font-Bold="True" HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Product Image" SortExpression="pimage">
<EditItemTemplate>
<asp:FileUpload ID="FileUpload1" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:Image ID="imgproductimage" runat="server" ImageUrl='<%# Bind("pimage") %>' Height="50px" Width="50px"/>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#F0F0F0" ForeColor="Black" />
<HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" HorizontalAlign="Center" VerticalAlign="Middle" />
<PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F7F7F7" />
<SortedAscendingHeaderStyle BackColor="#4B4B4B" />
<SortedDescendingCellStyle BackColor="#E5E5E5" />
<SortedDescendingHeaderStyle BackColor="#242121" />
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
只需在
文件上载程序添加PostBackTrigger
，如下所示：
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="FileUpload1" />
</Triggers>
</asp:UpdatePanel>
Update2在网格视图中添加事件OnRowDataBound
：
<asp:gridview
id="GridView1"
onrowdatabound="GridView1_RowDataBound"
更新面板无法与一些控件一起正常工作，类似于Fileupload。因此，尝试使用ajax调用，这是一个更好的选择。我遇到了类似的问题，并使用以下解决方案修复了它
在代码隐藏中添加以下代码
Page.Form.Attributes.Add("enctype", "multipart/form-data");
protected void gvLineItems_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.RowState.Equals(DataControlRowState.Edit))
{
Button btnUpload = e.Row.FindControl("btnUpload") as Button;
ScriptManager.GetCurrent(this).RegisterPostBackControl(btnUpload);
}
}
}
添加上述代码后，我能够检索fileUpload控制值
protected void UpdateRow(object sender, GridViewUpdateEventArgs e)
{
FileUpload uploadedFile = (FileUpload)dgDocuments.Rows[editIndex].FindControl("UploadFile");
if (uploadedFile.HasFile)
{
uploadedFile.SaveAs(FileUploadURL + "\\Temp\\" + uploadedFile.FileName);
}
}
添加：Page.Form.Attributes.add（“enctype”、“多部分/表单数据”）；要加载页面事件，请执行以下操作：
protected void Page_Load(object sender, EventArgs e)
{
Page.Form.Attributes.Add("enctype", "multipart/form-data");
..............................
}
试试这个
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="GridView1" />
</Triggers>
</asp:UpdatePanel>
只需添加Jisha Muthuswamy发布的“Page.Form.Attributes.Add（“enctype”，“multipart/Form data”）；”。UpdatePanel包装的gridview中的FileUpload控件永远无法访问，因此无法设置为PostBackTrigger ControlID。谢谢如果没有触发器，您会遇到什么错误没有错误。。但无法访问该文件的文件名。。所以在路径字段中，它只写~/user/product\u image/，但应该是~/user/product\u image/filename。jpg@merhardik如果您的答案已解决，请更新您的答案，因为我通过RegisterSyncPostBackControl或RegisterPostBackControl注册ID为“FileUpload1”的控制错误必须在MingContainer中实现，IPostBackDataHandler或IPostBackEventHandler它给出的错误类似于“在UpdatePanel中找不到触发器ID为'FileUpload1'的控件”'UpdatePanel1'“可能是因为FileUpload1在gridview中。”。。你能帮助PLZ直到不工作吗。。使用此代码不会有任何更改。。行更新也不是fireI所做的上述更改。现在它给出了以下错误：通过RegisterAsyncPostBackControl或RegisterPostBackControl注册的ID为“FileUpload1”的控件必须实现InAdminContainer、IPostBackDataHandler或IPostBackEventHandler。@Arshad如果可能，您可以尝试解决这个问题，因为它与此相同。解决方案是什么？？你能详细说明一下吗？？
protected void Page_Load(object sender, EventArgs e)
{
Page.Form.Attributes.Add("enctype", "multipart/form-data");
..............................
}
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="GridView1" />
</Triggers>
</asp:UpdatePanel>