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aspx thread: Can you use a htmlFileField on a Datagrid?
Message #1 by "Salvador Gallego" <salvito@h...> on Wed, 29 May 2002 17:13:10
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Hi,
I'm developing a Datagrid, and when I press on the "edit" column it allow
me to insert Text, I mean, it show me three TextBox which I can edit.
My question is if one of this TextBox could be an htmlFileField (or <input
type:file.. Control).
If the answer is yes, how could I do that?
Thanks!
salvito@h...
Message #2 by "Lewis Bass" <lewis@t...> on Wed, 29 May 2002 10:21:28 -0600
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I do not know about the htmlfilefield tag
but to do custom dropdowns pull lists and multiple textbox tags (and i have
done quite a few)
you have to use a template column
----- Original Message -----
From: "Salvador Gallego" <salvito@h...>
To: "ASP+" <aspx@p...>
Sent: Wednesday, May 29, 2002 5:13 PM
Subject: [aspx] Can you use a htmlFileField on a Datagrid?
> Hi,
>
> I'm developing a Datagrid, and when I press on the "edit" column it allow
> me to insert Text, I mean, it show me three TextBox which I can edit.
>
> My question is if one of this TextBox could be an htmlFileField (or <input
> type:file.. Control).
>
> If the answer is yes, how could I do that?
>
> Thanks!
>
> salvito@h...
>
Message #3 by Feduke Cntr Charles R <FedukeCR@m...> on Wed, 29 May 2002 12:23:13 -0400
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Salvador,
Yes, you can use any control you would like. A DataGrid, like many
.NET web controls, supports something called templates. In this particular
case, you want to look at the EditItemTemplate tag:
<asp:DataGrid RunAt="server" Id="myGrid" OnUpdateCommand="myGrid_Save">
<asp:TemplateColumn>
<ItemTemplate>
<asp:Label RunAt="server"
Text='<%#
DataBinder.Eval(Container.DataItem, "FileName") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:HtmlInputFile RunAt="server" Id="myFile" />
</EditItemTemplate>
</asp:TemplateColumn>
</asp:DataGrid>
In your code behind file, you can use the DataGridCommandEventArgs
Item.FindControl("myFile") and cast it as a
System.Web.UI.HtmlControls.HtmlInputFile:
protected void Save(DataGridCommandEventArgs e)
{
HttpPostedFile someFile
(HtmlInputFile)e.Item.FindControl("myFile");
someFile.SaveAs(Server.MapPath("/") + "\somedir\filename.gif");
}
HTH,
- Chuck
-----Original Message-----
From: Salvador Gallego [mailto:salvito@h...]
Sent: Wednesday, May 29, 2002 1:13 PM
To: ASP+
Subject: [aspx] Can you use a htmlFileField on a Datagrid?
Hi,
I'm developing a Datagrid, and when I press on the "edit" column it allow
me to insert Text, I mean, it show me three TextBox which I can edit.
My question is if one of this TextBox could be an htmlFileField (or <input
type:file.. Control).
If the answer is yes, how could I do that?
Thanks!
salvito@h...
Message #4 by "Salvador Gallego" <salvito@h...> on Thu, 30 May 2002 13:07:05
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Thanks a lot for your support!,
It been so useful and oriented me. Aniway I'm still not able to make it
Works, I think the problem must be in the code-behind or something,
because i'm not using code-behind yet; Aniway, the error I get is:
----
Parser Error
Description: An error occurred during the parsing of a resource required
to service this request. Please review the following specific parse error
details and modify your source file appropriately.
Parser Error Message: Could not load type
System.Web.UI.WebControls.HtmlInputFile from assembly System.Web,
Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a.
Source Error:
Line 239: </ItemTemplate>
Line 240: <EditItemTemplate>
Line 241: <asp:HtmlInputFile RunAt="server"
Id="myFile" /> ---> Line of error.
Line 242: </EditItemTemplate>
Line 243: </asp:TemplateColumn>
----
I putted the content of your "void Save" procedure on my "dgData_Edit"
which I call to from my "OnEditCommand=..." of my datagrid.
Now, this is my old <colums> syntaxis on datagrid:
----
<Columns>
<asp:TemplateColumn HeaderText="ID">
<ItemTemplate>
<asp:Label id="Name" runat="server"
Text='<%# Container.DataItem("IdF") %>'/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn HeaderText="Name" DataField="NomFich" />
<asp:BoundColumn HeaderText="Link" DataField="Link">
<ItemStyle Width="250"/>
</asp:BoundColumn>
<asp:BoundColumn HeaderText="Description" DataField="DescF" />
<asp:EditCommandColumn
EditText="Edit"
CancelText="Cancel"
UpdateText="Update"
HeaderText="Edit"/>
<asp:ButtonColumn HeaderText="Delete" text="Delete"
CommandName="delete" />
</Columns>
----
Then I put your ItemTemplate Code instead my <asp:BounColumn
HeaderText="Link"....> in this way:
----
<asp:TemplateColumn>
<ItemTemplate>
<asp:Label RunAt="server" Text='<%#
DataBinder.Eval(Container.DataItem, "FileName") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:HtmlInputFile RunAt="server" Id="myFile" />
</EditItemTemplate>
</asp:TemplateColumn>
----
And your code-behind where I told you.
But it still not Works, I think this should be because problems to
recognize the syntax or something.
Any ideas?
Don't worry too much, just if you have any Idea I would be grateful,
because I haven't find answers in any other forum.
So, Thanks Aniway!
From Spain,
Salvador Gallego.
Message #5 by Feduke Cntr Charles R <FedukeCR@m...> on Thu, 30 May 2002 09:18:18 -0400
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Salvador,
Sorry about that, I haven't used the Html File Input control yet.
Try replacing the line that's giving you an error with:
<input type="file" id="file" />
If you get a NullReferenceException, then set the file input's RunAt
attribute to "server".
HTH,
- Chuck
-----Original Message-----
From: Salvador Gallego [mailto:salvito@h...]
Sent: Thursday, May 30, 2002 9:07 AM
To: ASP+
Subject: [aspx] RE: Can you use a htmlFileField on a Datagrid?
Thanks a lot for your support!,
It been so useful and oriented me. Aniway I'm still not able to make it
Works, I think the problem must be in the code-behind or something,
because i'm not using code-behind yet; Aniway, the error I get is:
----
Parser Error
Description: An error occurred during the parsing of a resource required
to service this request. Please review the following specific parse error
details and modify your source file appropriately.
Parser Error Message: Could not load type
System.Web.UI.WebControls.HtmlInputFile from assembly System.Web,
Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a.
Source Error:
Line 239: </ItemTemplate>
Line 240: <EditItemTemplate>
Line 241: <asp:HtmlInputFile RunAt="server"
Id="myFile" /> ---> Line of error.
Line 242: </EditItemTemplate>
Line 243: </asp:TemplateColumn>
----
I putted the content of your "void Save" procedure on my "dgData_Edit"
which I call to from my "OnEditCommand=..." of my datagrid.
Now, this is my old <colums> syntaxis on datagrid:
----
<Columns>
<asp:TemplateColumn HeaderText="ID">
<ItemTemplate>
<asp:Label id="Name" runat="server"
Text='<%# Container.DataItem("IdF") %>'/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn HeaderText="Name" DataField="NomFich" />
<asp:BoundColumn HeaderText="Link" DataField="Link">
<ItemStyle Width="250"/>
</asp:BoundColumn>
<asp:BoundColumn HeaderText="Description" DataField="DescF" />
<asp:EditCommandColumn
EditText="Edit"
CancelText="Cancel"
UpdateText="Update"
HeaderText="Edit"/>
<asp:ButtonColumn HeaderText="Delete" text="Delete"
CommandName="delete" />
</Columns>
----
Then I put your ItemTemplate Code instead my <asp:BounColumn
HeaderText="Link"....> in this way:
----
<asp:TemplateColumn>
<ItemTemplate>
<asp:Label RunAt="server" Text='<%#
DataBinder.Eval(Container.DataItem, "FileName") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:HtmlInputFile RunAt="server" Id="myFile" />
</EditItemTemplate>
</asp:TemplateColumn>
----
And your code-behind where I told you.
But it still not Works, I think this should be because problems to
recognize the syntax or something.
Any ideas?
Don't worry too much, just if you have any Idea I would be grateful,
because I haven't find answers in any other forum.
So, Thanks Aniway!
From Spain,
Salvador Gallego.
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