Question

I have the following gridview that is inside an updatepanel:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <asp:Button ID="ButtonAdd" runat="server" OnClick="ButtonAdd_Click" Text="Novo Artigo" />
        <asp:GridView ID="Dados" runat="server" AutoGenerateColumns="False" CssClass="Grid">
            <Columns>
                <asp:TemplateField HeaderText="Artigo">
                    <ItemTemplate>
                        <asp:TextBox ID="Artigo" runat="server"></asp:TextBox>
                        <asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server"
                        TargetControlID="Artigo"
                        PopupControlID="PanelArtigos"
                        >
                        </asp:ModalPopupExtender>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Descrição">
                    <ItemTemplate>
                        <asp:TextBox ID="Descricao" runat="server" Width="300px"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="IVA">
                    <ItemTemplate>
                        <asp:TextBox ID="IVA" runat="server" Width="40px" Enabled="false"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Pr. Unit.">
                    <ItemTemplate>
                        <asp:TextBox ID="PU" runat="server" Width="50px"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="% Desc.">
                    <ItemTemplate>
                        <asp:TextBox ID="Desconto" runat="server"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="UN">
                    <ItemTemplate>
                        <asp:TextBox ID="UN" runat="server" Width="50px" Enabled="false"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Quant.">
                    <ItemTemplate>
                        <asp:TextBox ID="Quantidade" runat="server" Width="50px"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Total Liquido">
                    <ItemTemplate>
                        <asp:TextBox ID="TotalLiquido" runat="server" Enabled="false"></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="RemoveArtigo" runat="server" OnClick="RemoveArtigo_Click">Remover
                        </asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
            <HeaderStyle Font-Size="Small" />
            <RowStyle Font-Size="Small" CssClass="grid" />
        </asp:GridView>
    </ContentTemplate>
</asp:UpdatePanel>

As you can see, i have some textbox’s.

When i change a value in a textbox, for example, the Desconto value, and leave that textbox, i want that the row where i am to be updated, using the new value present in the textbox. It’s like a TextChanged or onBlur, but inside the update panel it’s not working.

what is the best way to do it?

I am using VB.NET.

Thank you.

EDIT:

When adding the OnTextChanged=”Desconto_TextChanged” i receive this compilation error:

Compilation Error Description: An
error occurred during the compilation
of a resource required to service this
request. Please review the following
specific error details and modify your
source code appropriately.

Compiler Error Message: BC30456:
‘Desconto_TextChanged’ is not a member
of ‘ASP.index_aspx’.

Source Error:

Line 204:
Line 205:
Line 206:
Line 207:
Line 208:

Source File:
C:\inetpub\wwwroot\Facturas\Facturas\index.aspx
Line: 206

Answer 1

TextBox controls will not initiate a postback by default. you can set AutoPostBack to true for each textbox control.