I have a detailsview which accesses a long datafield (5000), but when I go into edit mode the textbox presented is only about 200px.

 
How do I set the length of this editable field? 

Regards,

Rupert,

http://www.mobiletravelogue.com
 

Hi,Rupert:

You can use the findcontrol to get the TextBox in editTemplate:

  GridView1.Rows[e.NewEditIndex].RowState = DataControlRowState.Edit; 

TextBox tb=(TextBox)GridView2.Rows[e.NewEditIndex].Cells[2].FindControl("Label1"))

// do something

You can use templates to create your own layout of the DetailView for each mode, you can specify how the DetailsView should look like:

Example:

        <asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="CustomerID"
            DataSourceID="SqlDataSource1" Height="50px" Width="125px">
            <Fields>
                <asp:BoundField DataField="CustomerID" HeaderText="CustomerID" ReadOnly="True" SortExpression="CustomerID" />
                <asp:TemplateField HeaderText="CompanyName" SortExpression="CompanyName">
                    <EditItemTemplate>
                        <asp:TextBox Rows="3" TextMode="MultiLine" ID="TextBox1" runat="server" Text='<%# Bind("CompanyName") %>'></asp:TextBox>
                    </EditItemTemplate>
                    <InsertItemTemplate>
                        <asp:TextBox Rows="3" TextMode="MultiLine" ID="TextBox1" runat="server" Text='<%# Bind("CompanyName") %>'></asp:TextBox>
                    </InsertItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text='<%# Bind("CompanyName") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="ContactName" HeaderText="ContactName" SortExpression="ContactName" />
            </Fields>
        </asp:DetailsView>