C# 在两个按钮中调用bool方法不起作用
我有一个C# 在两个按钮中调用bool方法不起作用,c#,asp.net,C#,Asp.net,我有一个bool方法来计算总和(数量*价格),它工作正常。 当我从一个按钮调用该方法时,它工作正常 protected void btnupdate_Click(object sender, EventArgs e) { calculate_sum(); } 我还需要从不同的按钮再次调用它。 所以我试着写下: if(calculate_sum()) { something } el
bool
方法来计算总和(数量*价格),它工作正常。
当我从一个按钮调用该方法时,它工作正常
protected void btnupdate_Click(object sender, EventArgs e)
{
calculate_sum();
}
我还需要从不同的按钮再次调用它。
所以我试着写下:
if(calculate_sum())
{
something
}
else
{
something
}
第二个按钮的问题在于,它没有执行之前单击按钮btnupdate
时计算出的值,而不会再次执行该方法
aspx
页面包装在带有触发器的updatepanels
中,可能与此有关
以下是该方法的代码:
public bool calculate_sum()
{
bool is_ok = true; ;
double totalsum = 0;
int qty = 0; ;
string p = "";
for (int i = 0; i < 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 > 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;
}
}
public bool calculate_sum()
{
bool是_ok=true;
双倍总和=0;
整数数量=0;
字符串p=“”;
对于(int i=0;i0)
{
double pr=Convert.ToDouble(p.ToString());
//每行总计
双倍总成本=数量*请购单;
总和=总和+总成本;
GridView2.Rows[i]。Cells[6]。Text=Convert.ToString((tcost));
}
其他的
{
lblgrandtottal.Visible=true;
lblGrandTotal.Text=“仅输入大于0的数字”;
lblgrandtottal.ForeColor=System.Drawing.Color.Red;
is_ok=false;
}
}
其他的
{
lblgrandtottal.Visible=true;
lblGrandTotal.Text=“仅输入大于0的数字”;
lblgrandtottal.ForeColor=System.Drawing.Color.Red;
is_ok=false;
}
}
}
如果(你还好吗)
{
lblgrandtottal.ForeColor=System.Drawing.Color.Black;
lblGrandTotal.Text=Convert.ToString((totalsum));
还可以;
}
其他的
{
还可以;
}
}
这里是aspx页面:
<%@ Page Title="Check out" Language="C#" MasterPageFile="~/MasterPage/MasterPage.master" AutoEventWireup="true" CodeFile="CheckOut.aspx.cs" Inherits="CheckOut" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:ScriptManagerProxy ID="ScriptManagerProxy1" runat="server">
</asp:ScriptManagerProxy>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" ChildrenAsTriggers="False"
UpdateMode="Conditional">
<ContentTemplate>
<asp:HiddenField ID="hfGrandTotal" runat="server" />
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" >
<Columns>
<asp:BoundField DataField="Price" HeaderText="Price" ItemStyle-CssClass="price" >
<ItemStyle CssClass="price"></ItemStyle>
</asp:BoundField>
<asp:TemplateField HeaderText="ProductID" Visible="False">
<ItemTemplate>
<asp:Label ID="lblID" runat="server" Text='<%# Eval("ProductID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ProductName">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("ProductName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Summary">
<ItemTemplate>
<asp:Label ID="lblSum" runat="server" Text='<%# Eval("Summary") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="picPath" Visible="False">
<ItemTemplate>
<asp:Label ID="lblPic" runat="server" Text='<%# Eval("picPath") %>' ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "quantity">
<ItemTemplate>
<asp:TextBox ID="lblquantity" runat="server" >1</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "Total">
<ItemTemplate>
<asp:Label ID="lblTotal" runat="server" ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<br />
total sum:
<asp:Button ID="btnupdate" runat="server" Text="update quantity"
onclick="btnupdate_Click" ValidationGroup="panel1" />
<asp:Label ID="lblGrandTotal" runat="server" ></asp:Label>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnupdate" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<br />
<br />
<br />
<br />
<br />
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Table ID="Table1" runat="server" CellPadding="7" CellSpacing="7"
CaptionAlign="Bottom" HorizontalAlign="Center" BorderStyle="Solid" BorderWidth="1"
BorderColor="Black" Height="305px" Width="408px">
<asp:TableHeaderRow BorderStyle="Solid" BorderWidth="1" BorderColor="Black">
<asp:TableCell ColumnSpan="3" BorderStyle="Solid" BorderWidth="1" BorderColor="Black">customer details</asp:TableCell>
</asp:TableHeaderRow>
<asp:TableRow runat="server" >
<asp:TableCell runat="server" >
<asp:TextBox ID="TextBox1" runat="server" Width="150px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox1" Text="requierd" ValidationGroup="panel2"></asp:RequiredFieldValidator>
</asp:TableCell>
<asp:TableCell runat="server">
<asp:Label ID="Label1" runat="server" Text="name"></asp:Label>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow ID="TableRow1" runat="server">
<asp:TableCell ID="TableCell1" runat="server">
<asp:TextBox ID="TextBox4" runat="server" Width="150px" CausesValidation="True"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox4" Text="requierd" ValidationGroup="panel2"></asp:RequiredFieldValidator>
<br /> <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}$"></asp:RegularExpressionValidator>
</asp:TableCell>
<asp:TableCell ID="TableCell2" runat="server">
<asp:Label ID="Label4" runat="server" Text="phone"></asp:Label>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow runat="server">
<asp:TableCell runat="server">
<asp:TextBox ID="TextBox2" runat="server" Width="150px" CausesValidation="True"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox2" Text="requierd" ValidationGroup="panel2"></asp:RequiredFieldValidator>
</asp:TableCell>
<asp:TableCell>
<asp:Label ID="Label2" runat="server" Text="address"></asp:Label>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow runat="server">
<asp:TableCell runat="server">
<asp:TextBox ID="TextBox3" runat="server" Width="150px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ForeColor="Red" ErrorMessage="חובה" ControlToValidate="TextBox3" Text="requierd" ValidationGroup="panel2"></asp:RequiredFieldValidator>
<br />
<asp:RangeValidator ID="RangeValidator1" runat="server" ErrorMessage="only digits" ControlToValidate="TextBox3" ForeColor="Red" MinimumValue="1000" MaximumValue="9999999999999999" ValidationGroup="panel2"></asp:RangeValidator>
</asp:TableCell>
<asp:TableCell runat="server">
<asp:Label ID="Label3" runat="server" Text="number"></asp:Label>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell ColumnSpan="3">
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="pay" Width="150" ValidationGroup="panel2" />
</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell ColumnSpan="3">
<asp:Label ID="lblmessage" runat="server" Text="Label"
Font-Size="XX-Large" Visible="False"></asp:Label>
</asp:TableCell>
</asp:TableRow>
</asp:Table>
<asp:Button ID="btnPrint" runat="server" Text="print"
onclick="btnPrint_Click" Visible="False" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnPrint" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</asp:Content>
1.
总额:
客户详细信息
你的问题还不是很清楚
您所指的“第二个按钮”是否命名为“按钮1”
如果是,请注意它位于不同的UpdatePanel中,然后是网格和“Update”按钮。
当第二个UpdatePanel被触发时(从Button1),在网格中(在另一个UpdatePanel中)所做的更改不一定随它一起传递回服务器
我建议:
你的意思是你想让两个按钮运行完全相同的代码吗?现在回答这个问题是不可能的——它太模糊了。
calculate\u sum
方法是什么样子的?您遗漏了重要部分。如何创建和,在哪里存储值,从第二个按钮(重新)计算值?你有什么问题?@jon Skett,你是对的,我忘了插入方法代码。我已经更新了我的代码。Thanx是什么让你认为代码没有再次运行?您在调试器中观察到了什么?你能提供一个简短但完整的例子来说明这个问题吗?请阅读我按照你告诉我的做了,删除了所有的UpdatePanel,一切正常。所以我会努力解决的。至少我纠正了c代码。塔克斯