如何遍历panel中的自动生成控件

[yjdabc]

for (int i = 0; i < count; i++)
{
Label lb = new Label();
lb.ID = "lb" + i.ToString();
lb.Text = dt.Rows[i]["TrueName"].ToString() + " 的比例为:";
this.Panel1.Controls.Add(lb);

TextBox tb = new TextBox();
tb.ID = dt.Rows[i]["newsUser_ID"].ToString();
tb.Width = 60;
tb.Text = "0";
this.Panel1.Controls.Add(tb);
}

这是在Panel中根据数据库中的记录生成的TextBox和Label

请问我怎么把TextBox的值读取出来？

[2002pine]

protected void Page_Load(object sender, EventArgs e)
{
int count = 10;
for (int i = 0; i < count; i++)
{
Label lb = new Label();
lb.ID = "lb" + i.ToString();
lb.Text = " 的比例为:";
this.Panel1.Controls.Add(lb);

TextBox tb = new TextBox();
tb.ID = "txty" + i.ToString();
tb.Width = 60;
tb.Text = "0";
this.Panel1.Controls.Add(tb);
}

}


protected void Button1_Click(object sender, EventArgs e)
{
foreach (Control c in Panel1.Controls)
{
Response.Write(c.ID);
}
}

[阿非]

using System.Collections.Generic;


        List<string> l = new List<string>();
        foreach(Control c in this.Panel1.Controls)
        {
            TextBox txt = c as TextBox;
            if (txt!=null)
            {
                l.Add(txt.Text);                
            }
        }

[Teng_s2000]

[Quote=引用 1 楼 2002pine 的回复:]
protected void Page_Load(object sender, EventArgs e)
{
int count = 10;
for (int i = 0; i < count; i++)
{
Label lb = new Label();
lb.ID = "lb" + i.ToString();
lb.Text = " 的比例为:";
this.Panel1.Controls.Add(lb);

TextBox tb = new TextBox();
tb.ID = "txty" + i.ToString();
…
[/Quote]
哈哈，读错了，把ID给读出来！

[yjdabc]

不对啊
foreach (Control tt in this.Panel1.Controls)
{
TextBox txt = tt as TextBox;
if (txt != null)
{
perCount += Convert.ToDecimal(((TextBox)tt).Text.Trim());
sb.Append(tt.ID);
sb.Append(":");
sb.Append(((TextBox)tt).Text.Trim().ToString());
sb.Append(",");
}
}

我F10跟了一下，Panel1.Controls.count = 1
而我至少在Panel里面放进去10个控件，
这是怎么回事？？？

[阿非]

你看下顺序 是在添加之后 运行的 上段代码么？

[yjdabc]

我把生成代码放到
protected void Page_Load(object sender, EventArgs e)
{
这里
if (!IsPostBack)
{}
}
前面就好使了，请问这是为什么？

[阿非]

放在哪 是表示 页面加载就 生成，不考虑页面是否回发。

[lxf2000104]

protected void Page_Load(object sender, EventArgs e)
{
for (int i = 0; i < 10; i++)
{
Label lb = new Label();
lb.ID = "lb" + i.ToString();
lb.Text = i.ToString() + " 的比例为:";
this.Panel1.Controls.Add(lb);

TextBox tb = new TextBox();
tb.ID = "txt"+i.ToString();
tb.Width = 60;
tb.Text = "0";
this.Panel1.Controls.Add(tb);
}

}
protected void Button1_Click(object sender, EventArgs e)
{
string strRet = "";
foreach (Control c in this.Panel1.Controls)
{

if (c.GetType().ToString() == "System.Web.UI.WebControls.TextBox")
{
TextBox txt = (TextBox)c;
strRet = strRet + txt.Text; ;
}
}
txtResult.Text = strRet;
}

[limpid_123]

up

[zzxap]

[code=C#]
for (int i = 0; i < count; i++)
{
Label lb = new Label();
lb.ID = 'lb' + i.ToString();
lb.Text = dt.Rows[i]["TrueName"].ToString() + " 的比例为:";
this.Panel1.Controls.Add(lb);

TextBox tb = new TextBox();
tb.ID = dt.Rows[i]["newsUser_ID"].ToString();
tb.Width = 60;
tb.Text = "0";
this.Panel1.Controls.Add(tb);
}
获取值
for (int k = count + 1; k <count; k++) {
string stra = "lb" + k.ToString;
TextBox TextBoxa = (TextBox)this.FindControl(stra);
TextBoxa.Text.Trim //获取值


}
[/CODE]

[zzxap]

[code=C#]

获取值
STRING stra=""
for (int k = 0; k <count-1; k++) {
string stra = "lb" + k.ToString;
TextBox TextBoxa = (TextBox)this.FindControl(stra);
TextBoxa.Text.Trim //获取值

stra+=TextBoxa.Text.Trim+' ';
}
[/CODE]

[我姓区不姓区]

点击按钮之后，页面会PostBack,所以如果你把动态生成控件的代码放到if(!IsPostBack){}里面的话，那么页面回调之后将不会动态生成控件