I have a gridview with 6 template field,on of them is rate and quantity.when rate and quantity is changed based on that value total amount will be change.I have used ajaxtoolkit and update panel but the changes does not effect in total field.
Here is my code
ASPX
<tr>
<td colspan="5">
<asp:GridView ID="gvOrder" runat="server" AutoGenerateColumns="False"
CellPadding="3" HorizontalAlign="Center" OnRowCreated="gvOrder_RowCreated"
BackColor="White" BorderColor="#CCCCCC" Font-Size="Small"
BorderStyle="None" BorderWidth="1px" ShowFooter="True" Width="950px" >
<Columns>
<asp:TemplateField HeaderText="Product Name">
<ItemTemplate>
<asp:DropDownList ID="drpproduct" Width="200px" runat="server" DataValueField="PName"
onselectedindexchanged="drpproduct_SelectedIndexChanged" AutoPostBack="true" >
</asp:DropDownList>
</ItemTemplate>
<HeaderStyle Width="200px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Sub Item">
<ItemTemplate>
<asp:UpdatePanel ID="Upsubitem" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:DropDownList ID="drpsubitem" Width="200px" runat="server" DataValueField="BName"
onselectedindexchanged="drpsubitem_SelectedIndexChanged" AutoPostBack="true" >
</asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<HeaderStyle Width="200px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:UpdatePanel ID="upqty" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:TextBox ID="txtquantity" runat="server" MaxLength="5" CssClass="textb" Width="70px" OnTextChanged="QtyChanged" AutoPostBack="true" ></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<HeaderStyle Width="70px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Unit">
<ItemTemplate>
<asp:UpdatePanel ID="upUnit" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:TextBox ID="txtunit" runat="server" CssClass="textb" Width="60px" Enabled="false" ></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<HeaderStyle Width="60px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Rate">
<ItemTemplate>
<asp:UpdatePanel ID="UpRate" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpsubitem" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:TextBox ID="txtrate" runat="server" CssClass="textb" Width="70px" MaxLength="5" OnTextChanged="RateChanged" AutoPostBack="true" ></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<HeaderStyle Width="70px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Amount">
<ItemTemplate>
<asp:UpdatePanel ID="UpAmount" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="drpsubitem" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="txtrate" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="txtquantity" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:TextBox ID="txtamt" runat="server" OnTextChanged="AmtChanged" AutoPostBack="true" CssClass="textb" Width="80px" MaxLength="20" ></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<FooterStyle HorizontalAlign="Center" />
<FooterTemplate>
<asp:Button ID="ButtonAdd" runat="server"
Text="Add New Row" onclick="ButtonAdd_Click"
Width="100" />
</FooterTemplate>
<HeaderStyle Width="80px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="PCode">
<ItemTemplate>
<asp:UpdatePanel ID="UpProductCode" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:Label ID="lblpcode" runat="server" Text="" Width="10px" Enabled="false"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<HeaderStyle Width="10px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="SCode">
<ItemTemplate>
<asp:UpdatePanel ID="UpSubitemCode" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drpproduct" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="drpsubitem" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:Label ID="lblscode" runat="server" Text="" Width="10px" Enabled="false"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
<HeaderStyle Width="10px" />
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F1F1F1" />
<SortedAscendingHeaderStyle BackColor="#007DBB" />
<SortedDescendingCellStyle BackColor="#CAC9C9" />
<SortedDescendingHeaderStyle BackColor="#00547E" />
</asp:GridView>
</td>
</tr>
<tr>
<td style="width:15%;">
<asp:Label ID="Label8" runat="server" CssClass="tranlbl" Text="Total Qunatity :"></asp:Label>
</td>
<td style="width:25%;">
<asp:TextBox ID="txttotqty" runat="server" CssClass="texttot" Width="180px"
Enabled="False" ></asp:TextBox>
</td>
<td style="width:20%;">
</td>
<td style="width:15%;">
<asp:Label ID="Label9" runat="server" CssClass="tranlbl" Text="Total Amount :"></asp:Label>
</td>
<td style="width:25%;">
<asp:UpdatePanel ID="uptotamt" runat="server" UpdateMode="Conditional" RenderMode="Inline">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="txtrate" EventName="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:TextBox ID="txttot" runat="server" CssClass="texttot" Width="180px"
Enabled="False" ></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
Every item field has some events which fires during text changed.But txttot amount doesn't change.
Code Behind
protected void RateChanged(object sender, EventArgs e)
{
GridViewRow row = (GridViewRow)drpsubitem.NamingContainer;
TextBox prate = (TextBox)row.FindControl("txtrate");
TextBox pqty = (TextBox)row.FindControl("txtquantity");
TextBox pamt = (TextBox)row.FindControl("txtamt");
pamt.Text = Convert.ToString(float.Parse(prate.Text) * Convert.ToInt32(pqty.Text));
float gvamt = 0;
int gqty = 0;
foreach (GridViewRow g1 in gvOrder.Rows)
{
gvamt = gvamt + float.Parse(pamt.Text);
gqty = gqty + Convert.ToInt32(pqty.Text);
}
txttot.Text = Convert.ToString(gvamt);
txttotqty.Text = Convert.ToString(gqty);
}
