如何获取所选单选框的值 [英] how to retrieve value of a selected radio box

问题描述

对于单选按钮的网格视图，我有以下代码.单选按钮属于同一组.

I have the following code for grid view with radio buttons.The radio button belongs to the same group.

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns ="False" OnSelectedIndexChanged="GridView1_SelectedIndexChanged1" Width="312px">
                <Columns>
                <asp:BoundField DataField ="Column1" HeaderText ="ProductName"  />
                <asp:BoundField DataField ="Column2" HeaderText ="ProductID" />
                <asp:TemplateField  HeaderText ="Select one">
                <ItemTemplate>

<asp:RadioButton ID ="radioButton1" runat="server" GroupName ="productDB" AutoPostBack ="true" OnCheckedChanged ="Rb_CheckChanged" />
                </ItemTemplate></asp:TemplateField>
                </Columns>

                </asp:GridView>

.cs代码如下-:

The .cs code is as follows-:

String drugName;
        DataTable drugsTable = new DataTable();
        DataSet drugs =new DataSet();

        drugName = TextBox2.Text;
        GridView1.Visible = true;
        drugs = proxyService.fdbService(drugName);
        if (drugs.Tables[0].Rows.Count!= 0)
        {
            GridView1.DataSource = drugs.Tables[0].DefaultView;
            GridView1.DataBind();
            Label2.Enabled = false;
            Label2.Text = "";
        }
        else
        {
            Label2.Enabled = true;
            Label2.Text = "Search resulted in no Enteries";
            GridView1.Visible = false;
        }

在运行时，每一行都会有一个单选按钮...

我想要一个可以帮助我检索选择单选按钮的值的解决方案.

我目前正在使用以下代码

At run time each row will have one radio button...

I want a solution which helps me to retrieve the value for which the radio button is selected.

I am currently using the following code

foreach (GridViewRow row in GridView1.Rows)
 {
     rb1 = (RadioButton)row.FindControl("radioButton1");
     if (rb1.Checked = true)
     {
         drugId = (String)row.Cells[1].Text;
     }
     i += 1;
 }

即使我选择了任何单选按钮，它也只会检索第一个单选按钮的值.

让我知道必须改正错误吗?

谢谢.

even if i select any radio button it retrieves only the value of the 1st radio button.

Let me know wat has to be done to correct the mistake?

Thanks.

推荐答案

rb1 = (RadioButton)row.FindControl("radioButton1");

是导致错误的行.您只在寻找radioButton1.您必须尝试这样的事情

rb1 = (RadioButton)row.FindControl("radioButton1");

is the line that is causing the error. You are only looking for radioButton1. You would have to try something like this

foreach (GridViewRow row in GridView1.Rows)
            {
                string rbName = "radioButton" + i.ToString();
                rb1 = (RadioButton)row.FindControl(rbName);
                if (rb1.Checked = true)
                {
                    drugId = (String)row.Cells[1].Text;
                }
                i += 1;
            }

希望这对您有帮助

Hope this helps

使用Request [控件ID"]，它将返回您选择的单选按钮值.

就您而言

Use Request["ID of the control"], and it will return you the selected Radio button value.

In your case

Request["radioButton1"]

尝试它可能会有所帮助

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