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POCalling a bool method in two buttons not working
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  1. POCalling a bool method in two buttons not working
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    copied!<p>I have a <code>bool</code> method which calculates the sum (quantity*price) it works fine. When I call the method from one button it works fine. </p> <pre><code>protected void btnupdate_Click(object sender, EventArgs e) { calculate_sum(); } </code></pre> <p>I also need to call it again from different button. So I try to write this:</p> <pre><code>if(calculate_sum()) { something } else { something } </code></pre> <p>The problem is with the second button it doesn't perform the method it just takes the value which was calculated before when button <code>btnupdate</code> was clicked and doesn't comes in to perform it again.</p> <p>The <code>aspx</code> page is wrapped in <code>updatepanels</code> with triggers maybe there's something to do with that?</p> <p>Here is the code of the method:</p> <pre><code>public bool calculate_sum() { bool is_ok = true; ; double totalsum = 0; int qty = 0; ; string p = ""; for (int i = 0; i &lt; GridView2.Rows.Count; i++) { if (GridView2.Rows[i].RowType == DataControlRowType.DataRow) { TextBox txtqty = GridView2.Rows[i].FindControl("lblquantity") as TextBox; p = GridView2.Rows[i].Cells[0].Text.ToString(); if (Int32.TryParse(txtqty.Text, out qty)) { if (qty &gt; 0) { double pr = Convert.ToDouble(p.ToString()); //total per row double tcost = qty * pr; totalsum = totalsum + tcost; GridView2.Rows[i].Cells[6].Text = Convert.ToString((tcost)); } else { lblGrandTotal.Visible = true; lblGrandTotal.Text = "enter only numbers greater than 0"; lblGrandTotal.ForeColor = System.Drawing.Color.Red; is_ok = false; } } else { lblGrandTotal.Visible = true; lblGrandTotal.Text = "enter only numbers greater than 0"; lblGrandTotal.ForeColor = System.Drawing.Color.Red; is_ok = false; } } } if (is_ok) { lblGrandTotal.ForeColor = System.Drawing.Color.Black; lblGrandTotal.Text = Convert.ToString((totalsum)); return is_ok; } else { return is_ok; } } </code></pre> <p>Here the aspx page:</p> <pre><code>&lt;%@ Page Title="Check out" Language="C#" MasterPageFile="~/MasterPage/MasterPage.master" AutoEventWireup="true" CodeFile="CheckOut.aspx.cs" Inherits="CheckOut" %&gt; &lt;asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"&gt; &lt;/asp:Content&gt; &lt;asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"&gt; &lt;asp:ScriptManagerProxy ID="ScriptManagerProxy1" runat="server"&gt; &lt;/asp:ScriptManagerProxy&gt; &lt;asp:UpdatePanel ID="UpdatePanel1" runat="server" ChildrenAsTriggers="False" UpdateMode="Conditional"&gt; &lt;ContentTemplate&gt; &lt;asp:HiddenField ID="hfGrandTotal" runat="server" /&gt; &lt;asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" &gt; &lt;Columns&gt; &lt;asp:BoundField DataField="Price" HeaderText="Price" ItemStyle-CssClass="price" &gt; &lt;ItemStyle CssClass="price"&gt;&lt;/ItemStyle&gt; &lt;/asp:BoundField&gt; &lt;asp:TemplateField HeaderText="ProductID" Visible="False"&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblID" runat="server" Text='&lt;%# Eval("ProductID") %&gt;'&gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="ProductName"&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblName" runat="server" Text='&lt;%# Eval("ProductName") %&gt;'&gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="Summary"&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblSum" runat="server" Text='&lt;%# Eval("Summary") %&gt;'&gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="picPath" Visible="False"&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblPic" runat="server" Text='&lt;%# Eval("picPath") %&gt;' &gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText = "quantity"&gt; &lt;ItemTemplate&gt; &lt;asp:TextBox ID="lblquantity" runat="server" &gt;1&lt;/asp:TextBox&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText = "Total"&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblTotal" runat="server" &gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; &lt;br /&gt; total sum: &lt;asp:Button ID="btnupdate" runat="server" Text="update quantity" onclick="btnupdate_Click" ValidationGroup="panel1" /&gt; &lt;asp:Label ID="lblGrandTotal" runat="server" &gt;&lt;/asp:Label&gt; &lt;/ContentTemplate&gt; &lt;Triggers&gt; &lt;asp:AsyncPostBackTrigger ControlID="btnupdate" EventName="Click" /&gt; &lt;/Triggers&gt; &lt;/asp:UpdatePanel&gt; &lt;br /&gt; &lt;br /&gt; &lt;br /&gt; &lt;br /&gt; &lt;br /&gt; &lt;asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional"&gt; &lt;ContentTemplate&gt; &lt;asp:Table ID="Table1" runat="server" CellPadding="7" CellSpacing="7" CaptionAlign="Bottom" HorizontalAlign="Center" BorderStyle="Solid" BorderWidth="1" BorderColor="Black" Height="305px" Width="408px"&gt; &lt;asp:TableHeaderRow BorderStyle="Solid" BorderWidth="1" BorderColor="Black"&gt; &lt;asp:TableCell ColumnSpan="3" BorderStyle="Solid" BorderWidth="1" BorderColor="Black"&gt;customer details&lt;/asp:TableCell&gt; &lt;/asp:TableHeaderRow&gt; &lt;asp:TableRow runat="server" &gt; &lt;asp:TableCell runat="server" &gt; &lt;asp:TextBox ID="TextBox1" runat="server" Width="150px"&gt;&lt;/asp:TextBox&gt; &amp;nbsp; &amp;nbsp;&lt;asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox1" Text="requierd" ValidationGroup="panel2"&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;/asp:TableCell&gt; &lt;asp:TableCell runat="server"&gt; &lt;asp:Label ID="Label1" runat="server" Text="name"&gt;&lt;/asp:Label&gt; &lt;/asp:TableCell&gt; &lt;/asp:TableRow&gt; &lt;asp:TableRow ID="TableRow1" runat="server"&gt; &lt;asp:TableCell ID="TableCell1" runat="server"&gt; &lt;asp:TextBox ID="TextBox4" runat="server" Width="150px" CausesValidation="True"&gt;&lt;/asp:TextBox&gt; &amp;nbsp; &amp;nbsp;&lt;asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox4" Text="requierd" ValidationGroup="panel2"&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;br /&gt; &lt;asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="הקלד מספר טלפון" ControlToValidate="TextBox4" ForeColor="Red" ValidationExpression="^(02|03|04|08|09|050|052|054|057|074|077)\-\d{7,8}$"&gt;&lt;/asp:RegularExpressionValidator&gt; &lt;/asp:TableCell&gt; &lt;asp:TableCell ID="TableCell2" runat="server"&gt; &lt;asp:Label ID="Label4" runat="server" Text="phone"&gt;&lt;/asp:Label&gt; &lt;/asp:TableCell&gt; &lt;/asp:TableRow&gt; &lt;asp:TableRow runat="server"&gt; &lt;asp:TableCell runat="server"&gt; &lt;asp:TextBox ID="TextBox2" runat="server" Width="150px" CausesValidation="True"&gt;&lt;/asp:TextBox&gt; &amp;nbsp; &amp;nbsp; &lt;asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox2" Text="requierd" ValidationGroup="panel2"&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;/asp:TableCell&gt; &lt;asp:TableCell&gt; &lt;asp:Label ID="Label2" runat="server" Text="address"&gt;&lt;/asp:Label&gt; &lt;/asp:TableCell&gt; &lt;/asp:TableRow&gt; &lt;asp:TableRow runat="server"&gt; &lt;asp:TableCell runat="server"&gt; &lt;asp:TextBox ID="TextBox3" runat="server" Width="150px"&gt;&lt;/asp:TextBox&gt; &amp;nbsp; &amp;nbsp;&lt;asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox3" Text="requierd" ValidationGroup="panel2"&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;br /&gt; &lt;asp:RangeValidator ID="RangeValidator1" runat="server" ErrorMessage="only digits" ControlToValidate="TextBox3" ForeColor="Red" MinimumValue="1000" MaximumValue="9999999999999999" ValidationGroup="panel2"&gt;&lt;/asp:RangeValidator&gt; &lt;/asp:TableCell&gt; &lt;asp:TableCell runat="server"&gt; &lt;asp:Label ID="Label3" runat="server" Text="number"&gt;&lt;/asp:Label&gt; &lt;/asp:TableCell&gt; &lt;/asp:TableRow&gt; &lt;asp:TableRow&gt; &lt;asp:TableCell ColumnSpan="3"&gt; &lt;asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="pay" Width="150" ValidationGroup="panel2" /&gt; &lt;/asp:TableCell&gt; &lt;/asp:TableRow&gt; &lt;asp:TableRow&gt; &lt;asp:TableCell ColumnSpan="3"&gt; &lt;asp:Label ID="lblmessage" runat="server" Text="Label" Font-Size="XX-Large" Visible="False"&gt;&lt;/asp:Label&gt; &lt;/asp:TableCell&gt; &lt;/asp:TableRow&gt; &lt;/asp:Table&gt; &lt;asp:Button ID="btnPrint" runat="server" Text="print" onclick="btnPrint_Click" Visible="False" /&gt; &lt;/ContentTemplate&gt; &lt;Triggers&gt; &lt;asp:AsyncPostBackTrigger ControlID="btnPrint" EventName="Click" /&gt; &lt;/Triggers&gt; &lt;/asp:UpdatePanel&gt; &lt;/asp:Content&gt; </code></pre>
 

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