我是如何从文本框ASP.NET中正确获取值的 [英] How I get the values properly from textboxes ASP.NET

问题描述

我在Aspx上有一个for循环和面板;

I have a for loop and panel on Aspx;

<asp:Panel ID="Panel1" runat="server">

         <%for (int i = 0; i <= 6; i++)
          {%>
<asp:TextBox ID="tb" class="form-control"  runat="server"></asp:TextBox>

         <%} %>
   </asp:Panel>

它返回7个texboxes，我可以使用以下代码从texbox中获取值;

It returns 7 texboxes and i can get values from texboxes with following code;

 int j = 0;
        foreach (TextBox tbValue in Panel1.Controls.OfType<TextBox>())
        {
            xArray[j] = tbValue.Text;
j++;
        }

例如;我在html上填充texbox



tb1.text：Sample1

tb2.text：Sample2

tb3 .text：Sample3

tb4.text：null

tb5.text：null

tb6.text：null



当我发布它时，tb.text返回一个值为Sample1，Sample2，Sample3 ,,,

所以，

xArray [0] =Sample1，Sample2，Sample3 ,,,

xArray [1] = null

xarray [2] = null

。

。

。

应该是;

xArray [0] = Sample1

xArray [1] = Sample2

...

如何正确填写？



我尝试过：



没有................... ....

for example; i'm filling texboxes on html

tb1.text: Sample1
tb2.text: Sample2
tb3.text: Sample3
tb4.text: null
tb5.text: null
tb6.text: null

When i post it, tb.text returned one value as "Sample1,Sample2,Sample3,,,,"
So,
xArray[0]="Sample1,Sample2,Sample3,,,,"
xArray[1]=null
xarray[2]=null
.
.
.
It should be;
xArray[0]=Sample1
xArray[1]=Sample2
...
How can i fill properly?

What I have tried:

nothing.......................

推荐答案

它不能与Asp TextBox一起使用，尝试使用HTML输入元素



< big> ASPX

It wont work with Asp TextBox, try using HTML input element

ASPX

    <%for (int i = 0; i <= 6; i++)
             {%>
           <input type="text" name="txt_<%= i %>"  />

<%} %>

代码背后

Code Behind

protected void Button1_Click(object sender, EventArgs e)
     {
         string[]xArray =new string[7];

         for (int i = 0; i <= 6; i++)
         {
             string value = Request.Form.Get("txt_" + i);
             xArray[i] = value;
         }


     }

嘿伙计，

你注意到了吗所有动态生成的文本框都具有相同的ID？理想情况下，Web表单中的所有控件都应具有唯一ID。如果你试图从aspx页面动态分配唯一的id，那么它就不会发生。

我的建议：

1.）从aspx页面删除此代码：

Hey Buddy,
Did you notice that all your dynamically produced textboxes have the same id ? Ideally all controls in a web form should have unique id. If you try to assign unique id dynamically from aspx page, then it's not going to happen.
My suggestions:
1.) Remove this code from aspx page:

 <%for (int i = 0; i <= 6; i++)
          {%>
<asp:TextBox ID="tb" class="form-control"  runat="server"></asp:TextBox>
 
         <%} %>

2.）在您的代码中添加以下代码：

2.) Add below code in your code behind:

for (int i = 0; i <= 6; i++)
           {
               TextBox tb = new TextBox();
               tb.ID = "tb" + i.ToString();
               tb.Attributes.Add("class", "form-control");
               Panel1.Controls.Add(tb);
           }

Voila，现在可行。

Voila , Now this works.

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