如何在panel上获取到动态生成的控件？求救各位，在线等！

Question

请看如下代码，我在panel上动态生成了一组控件，有TextBox、Combobox，现在要获取控件的值，但是断点设到if里面，可是断点走不到if里面，也就是说判断条件不成立，问题在哪呢？求救各位达人double [] StxtLength = new double[10];
ComboBox[] ScbBoxLoadMaterial=new ComboBox[10];foreach (Control c in this.panlSubsection.Controls)
{     if (c is TextBox && ((TextBox)c).Name.Contains("txtLength"+i))
     {
        TextBox s = ((TextBox)c);
        StxtLength[i] = double.Parse (s.Text.ToString());
     }
     if (c is ComboBox && ((ComboBox)c).Name.Contains("cbBoxLoadMaterial" + i))
     {
        ComboBox s=((ComboBox)c);
        ScbBoxLoadMaterial[i]=s;
     }
     .......
}

Answer 1

既然知道是判断条件不成立，就分析判断的条件了，如是是textbox，那么就是名字中不含你写的那些东西喽！

Answer 2

可是名字中是包含的，我另外有个方法是用来定义动态生成的控件的private void cbBoxPartitionSum_SelectedIndexChanged(object sender, EventArgs e)
        {
          int n;//外形所分段数
            n = Convert.ToInt32(this.cbBoxPartitionSum.SelectedIndex);            panlSubsection.Controls.Clear();//放置动态控件的容器
            //panlSubsection.Controls.Add(tableLayoutPanel7);
            for (int i = 0; i <= n; i++)
            {
                //动态建立“外形”标签
                Label lbl = new Label();
                lbl.Text = "段" + (i + 1);
                lbl.Name = "lblSubsection" + i;
                lbl.Location = new Point(18, 50+50 * i);
                lbl.Size = new Size(29, 21);                //动态建立“外形”文本框及下拉列表
                TextBox txt1 = new TextBox();
                txt1.Text = "130";
                txt1.Name = "txtLength" + i;
                txt1.Location = new Point(60, 50 + 50 * i);
                txt1.Size = new Size(30, 21);                TextBox txt2 = new TextBox();
                txt2.Text = "0";
                txt2.Name = "txtHeight" + i;
                txt2.Location = new Point(120, 50 + 50 * i);
                txt2.Size = new Size(30, 21);                TextBox txt3 = new TextBox();
                txt3.Text = "0";
                txt3.Name = "txtInclineAngle" + i;
                txt3.Location = new Point(180, 50 + 50 * i);
                txt3.Size = new Size(30, 21);                ComboBox cbBox = new ComboBox();
                cbBox.Text = "否";
                cbBox.Name = "cbBoxLoadMaterial" + i;
                cbBox.Location = new Point(231, 50 + 50 * i);
                cbBox.Size = new Size(40, 20);
                cbBox.Items.AddRange(new object[]{
                "是",
                "否"});                TextBox txt4 = new TextBox();
                txt4.Text = "0";
                txt4.Name = "txtDriveRollerNumber" + i;
                txt4.Location = new Point(308, 50 + 50 * i);
                txt4.Size = new Size(30, 21);                TextBox txt5 = new TextBox();
                txt5.Text = "0";
                txt5.Name = "txtRR180EndNumber" + i;
                txt5.Location = new Point(390, 50 + 50 * i);
                txt5.Size = new Size(30, 21);                TextBox txt6 = new TextBox();
                txt6.Text = "0";
                txt6.Name = "txtRR180MiddleNumber" + i;
                txt6.Location = new Point(458, 50 + 50 * i);
                txt6.Size = new Size(30, 21);                TextBox txt7 = new TextBox();
                txt7.Text = "0";
                txt7.Name = "txtRR180HeadNumber" + i;
                txt7.Location = new Point(523, 50 + 50 * i);
                txt7.Size = new Size(30, 21);                TextBox txt8 = new TextBox();
                txt8.Text = "0";
                txt8.Name = "txtRR90Number" + i;
                txt8.Location = new Point(588, 50 + 50 * i);
                txt8.Size = new Size(30, 21);                TextBox txt9 = new TextBox();
                txt9.Text = "0";
                txt9.Name = "txtRR45Number" + i;
                txt9.Location = new Point(653, 50 + 50 * i);
                txt9.Size = new Size(30, 21);                TextBox txt10 = new TextBox();
                txt10.Text = "0";
                txt10.Name = "txtDriPowLoad" + i;
                txt10.Location = new Point(706, 50 + 50 * i);
                txt10.Size = new Size(40, 21);                TextBox txt11= new TextBox();
                txt11.Text = "0";
                txt11.Name = "txtDriPowBack" + i;
                txt11.Location = new Point(761, 50 + 50 * i);
                txt11.Size = new Size(40, 21);                panlSubsection.Controls.Add(txt1);
                panlSubsection.Controls.Add(txt2); 
                panlSubsection.Controls.Add(txt3);
                panlSubsection.Controls.Add(txt4);
                panlSubsection.Controls.Add(txt5);
                panlSubsection.Controls.Add(txt6);
                panlSubsection.Controls.Add(txt7);
                panlSubsection.Controls.Add(txt8);
                panlSubsection.Controls.Add(txt9);
                panlSubsection.Controls.Add(txt10);
                panlSubsection.Controls.Add(txt11);
                panlSubsection.Controls.Add(lbl);
                panlSubsection.Controls.Add(cbBox);
            }
        }

Answer 3

    if (c is TextBox && ((TextBox)c).Name.Contains("txtLength"+i))
这个i赋了什么值？会不会越界？

Answer 4

完整的取值代码是这样的：//获取外形里面板动态控件的值
             int i = 0;
            double [] StxtLength = new double[10];
            double[] StxtHeight = new double[10];
            double[] StxtInclineAngle = new double[10];            ComboBox[] ScbBoxLoadMaterial=new ComboBox[10];            int[] StxtDriveRollerNumber = new int[10];
            int[] StxtRR180EndNumber = new int[10];
            int[] StxtRR180MiddleNumber = new int[10];
            int[] StxtRR180HeadNumber = new int[10];
            int[] StxtRR90Number = new int[10];
            int[] StxtRR45Number = new int[10];
            Double [] StxtDriPowLoad = new Double[10];
            Double [] StxtDriPowBack = new Double[10];            foreach (Control c in this.panlSubsection.Controls)
            {                if (c is TextBox && ((TextBox)c).Name.Contains("txtLength"+i))
                {
                    TextBox s = ((TextBox)c);
                    StxtLength[i] = double.Parse (s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtHeight" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtHeight[i] =double.Parse(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtInclineAngle" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtInclineAngle[i] = double.Parse (s.Text.ToString());
                }
                if (c is ComboBox && ((ComboBox)c).Name.Contains("cbBoxLoadMaterial" + i))
                {
                    ComboBox s=((ComboBox)c);
                    ScbBoxLoadMaterial[i]=s;
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtDriveRollerNumber" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtDriveRollerNumber[i] =Convert.ToInt16(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtRR180EndNumber" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtRR180EndNumber[i] = Convert.ToInt16(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtRR180MiddleNumber" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtRR180MiddleNumber[i] = Convert.ToInt16(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtRR180HeadNumber" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtRR180HeadNumber[i] = Convert.ToInt16(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtRR90Number" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtRR90Number[i] = Convert.ToInt16(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtRR45Number" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtRR45Number[i] = Convert.ToInt16(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtDriPowLoad" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtDriPowLoad[i] = Double.Parse(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtDriPowBack" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtDriPowBack[i] =Double.Parse(s.Text.ToString()) ;
                }
                i++;
                if (i > 9) break;
            }

Answer 5

我把i改成了O，用你的代码调了一下，没问题呀？
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            int n;//外形所分段数
            n = Convert.ToInt32(4);            panlSubsection.Controls.Clear();//放置动态控件的容器
            //panlSubsection.Controls.Add(tableLayoutPanel7);
            for (int i = 0; i <= n; i++)
            {
                //动态建立“外形”标签
                Label lbl = new Label();
                lbl.Text = "段" + (i + 1);
                lbl.Name = "lblSubsection" + i;
                lbl.Location = new Point(18, 50 + 50 * i);
                lbl.Size = new Size(29, 21);                //动态建立“外形”文本框及下拉列表
                TextBox txt1 = new TextBox();
                txt1.Text = "130";
                txt1.Name = "txtLength" + i;
                txt1.Location = new Point(60, 50 + 50 * i);
                txt1.Size = new Size(30, 21);                TextBox txt2 = new TextBox();
                txt2.Text = "0";
                txt2.Name = "txtHeight" + i;
                txt2.Location = new Point(120, 50 + 50 * i);
                txt2.Size = new Size(30, 21);                TextBox txt3 = new TextBox();
                txt3.Text = "0";
                txt3.Name = "txtInclineAngle" + i;
                txt3.Location = new Point(180, 50 + 50 * i);
                txt3.Size = new Size(30, 21);                ComboBox cbBox = new ComboBox();
                cbBox.Text = "否";
                cbBox.Name = "cbBoxLoadMaterial" + i;
                cbBox.Location = new Point(231, 50 + 50 * i);
                cbBox.Size = new Size(40, 20);
                cbBox.Items.AddRange(new object[]{
                "是",
                "否"});                TextBox txt4 = new TextBox();
                txt4.Text = "0";
                txt4.Name = "txtDriveRollerNumber" + i;
                txt4.Location = new Point(308, 50 + 50 * i);
                txt4.Size = new Size(30, 21);                TextBox txt5 = new TextBox();
                txt5.Text = "0";
                txt5.Name = "txtRR180EndNumber" + i;
                txt5.Location = new Point(390, 50 + 50 * i);
                txt5.Size = new Size(30, 21);                TextBox txt6 = new TextBox();
                txt6.Text = "0";
                txt6.Name = "txtRR180MiddleNumber" + i;
                txt6.Location = new Point(458, 50 + 50 * i);
                txt6.Size = new Size(30, 21);                TextBox txt7 = new TextBox();
                txt7.Text = "0";
                txt7.Name = "txtRR180HeadNumber" + i;
                txt7.Location = new Point(523, 50 + 50 * i);
                txt7.Size = new Size(30, 21);                TextBox txt8 = new TextBox();
                txt8.Text = "0";
                txt8.Name = "txtRR90Number" + i;
                txt8.Location = new Point(588, 50 + 50 * i);
                txt8.Size = new Size(30, 21);                TextBox txt9 = new TextBox();
                txt9.Text = "0";
                txt9.Name = "txtRR45Number" + i;
                txt9.Location = new Point(653, 50 + 50 * i);
                txt9.Size = new Size(30, 21);                TextBox txt10 = new TextBox();
                txt10.Text = "0";
                txt10.Name = "txtDriPowLoad" + i;
                txt10.Location = new Point(706, 50 + 50 * i);
                txt10.Size = new Size(40, 21);                TextBox txt11 = new TextBox();
                txt11.Text = "0";
                txt11.Name = "txtDriPowBack" + i;
                txt11.Location = new Point(761, 50 + 50 * i);
                txt11.Size = new Size(40, 21);                panlSubsection.Controls.Add(txt1);
                panlSubsection.Controls.Add(txt2);
                panlSubsection.Controls.Add(txt3);
                panlSubsection.Controls.Add(txt4);
                panlSubsection.Controls.Add(txt5);
                panlSubsection.Controls.Add(txt6);
                panlSubsection.Controls.Add(txt7);
                panlSubsection.Controls.Add(txt8);
                panlSubsection.Controls.Add(txt9);
                panlSubsection.Controls.Add(txt10);
                panlSubsection.Controls.Add(txt11);
                panlSubsection.Controls.Add(lbl);
                panlSubsection.Controls.Add(cbBox);
            }
        }        private void button2_Click(object sender, EventArgs e)
        {
            double [] StxtLength = new double[10];
ComboBox[] ScbBoxLoadMaterial=new ComboBox[10];foreach (Control c in this.panlSubsection.Controls)
{     if (c is TextBox && ((TextBox)c).Name.Contains("txtLength"+0))
     {
        TextBox s = ((TextBox)c);
        //StxtLength[i] = double.Parse (s.Text.ToString());
     }
     if (c is ComboBox && ((ComboBox)c).Name.Contains("cbBoxLoadMaterial" + 1))
     {
        ComboBox s=((ComboBox)c);
        //ScbBoxLoadMaterial[i]=s;
     }
 }
        }
    }
}

Answer 6

为什么不是+i.ToString()？
能编译过去？

Answer 7

你跟一下吧，应该是你的i 的值不对，我把i改成0,因为我明确知道有个txtLength0,所以改成O试了一下没有问题的。

Answer 8

我调试了一下，第一个if可以进去，但是第二个、第三个if不进去了，不知道是不是控件c的问题?

Answer 9

楼主应该把逻辑改一下：if (c is TextBox )
{
 TextBox s = ((TextBox)c);
 if(((TextBox)c).Name.Contains("txtLength"+i))
 {    StxtLength[i] = double.Parse (s.Text.ToString());
 }
 else if()
 {
 }
}

Answer 10

怎么不对呢？还可以再改进：
if (c is TextBox )
{
 TextBox s = ((TextBox)c);
 string text=s.Text;
 if(s.Name.Contains("txtLength"+i))
 {    StxtLength[i] = double.Parse (text);
 }
 else if()
 {
 }
}

Answer 11

现在的问题是要求第一次循环的时候，txtLength0，txtHeight0,txtInclineAngle0.....都要能够取值，也就是这n多个并列的if语句中的动态控件都能够取到值，第二次循环的时候txtLength1，txtHeight1,txtInclineAngle1.....也能取到第二组值，以此类推。但是现在只能判断到第一个if语句，第二个、第三个if条件就不成立了，不知道为什么？if (c is TextBox && ((TextBox)c).Name.Contains("txtLength"+i))
                {
                    TextBox s = ((TextBox)c);
                    StxtLength[i] = double.Parse (s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtHeight" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtHeight[i] =double.Parse(s.Text.ToString());
                }
                if (c is TextBox && ((TextBox)c).Name.Contains("txtInclineAngle" + i))
                {
                    TextBox s = ((TextBox)c);
                    StxtInclineAngle[i] = double.Parse (s.Text.ToString());
                }
                if (c is ComboBox && ((ComboBox)c).Name.Contains("cbBoxLoadMaterial" + i))
                {
                    ComboBox s=((ComboBox)c);
                    ScbBoxLoadMaterial[i]=s;
                }
                ......

Answer 12

你的逻辑关系还是没搞清啊。。
再加一句代码，估计你就明白了：(一个控件的Name同时会包含txtLength、txtHeight等吗？）if (c is TextBox )
{
 TextBox s = ((TextBox)c);
 string text=s.Text;
 string name=s.Name;//调试时留意下这个值的变化。
 if(name.Contains("txtLength"+i))
 {    StxtLength[i] = double.Parse (text);
 }
 else if(name.Contains("txtHeight"+i))
 {
 }
......
}
eles if (c is ComboBox)
{
......
}睡觉去喽