Winforn中使用代码动态生成控件

场景

有时候需要根据配置文件在窗体中使用代码动态生成控件。

比如读取xml配置文件中的节点数量，然后在窗体中生成指定数量的RadioGroup控件。

实现

新建一个窗体，在窗体的加载完之后的事件中

 private void ChartOption_Load(object sender, EventArgs e)
        {
            //根据配置文件路径初始化图形选项Dialog
            initChartOptionPane(Global.RADIO_GROUP_YAXIS_FILEPATH);
          
        }

传入配置文件路径，然后生成控件。

 public void initChartOptionPane(string xmlFilePath)
        {
            //不同组水平方向控件之间的距离 = 控件的宽度 + 组与组之间的距离
            int horizontalDistance = Global.NOGROUP_HORIZONTAL_DISTANCE + Global.CHART_OPTION_WIDTH;
            //获取Y轴的list
            List yList = ChartOptionHelper.getYAxisList(xmlFilePath);
            //获取配置文件中的radioGroup的选项
            List radioGrupItems = initRadioGroupItem(Global.RADIO_GROUP_ITEM_FILEPATH);
            //生成对应组元素
            for (int i = 0; i < yList.Count; i++)
            {
                //生成一个radioGroup
                RadioGroup radioGroup = new RadioGroup();
                foreach (string s in radioGrupItems)
                {
                    //每一个单元按钮对应的选项item
                    RadioGroupItem item = new RadioGroupItem();
                    //设置选项的value值
                    item.Value = s;
                    //设置选项的描述值 即 要显示的值
                    item.Description = s;
                    //使选项启用
                    item.Enabled = true;
                    //将新增的选项添加到radiogroup的Items中
                    radioGroup.Properties.Items.Add(item);
                }
                //设置宽度
                radioGroup.Width = Global.CHART_OPTION_WIDTH;
                //加1 保留出空白选项的高度
                radioGroup.Height = Global.RADIO_HEIGHT * (radioGrupItems.Count + 1);
                //设置位置
                radioGroup.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE);
                this.Controls.Add(radioGroup);

                //添加下限输入框
                TextEdit minTextEdit = new TextEdit();
                minTextEdit.Text = yList[i].Min.ToString();
                minTextEdit.Width = Global.CHART_OPTION_WIDTH;
                minTextEdit.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE * 2 + radioGroup.Height);
                this.Controls.Add(minTextEdit);

                //添加上限输入框
                TextEdit maxTextEdit = new TextEdit();
                maxTextEdit.Text = yList[i].Max.ToString();
                maxTextEdit.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE * 3 + radioGroup.Height + minTextEdit.Height);
                maxTextEdit.Width = Global.CHART_OPTION_WIDTH;
                this.Controls.Add(maxTextEdit);

                //添加颜色选择器
                ColorPickEdit colorPickEdit = new ColorPickEdit();
                colorPickEdit.Text = yList[i].Color;
                colorPickEdit.Width = Global.CHART_OPTION_WIDTH;
                colorPickEdit.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE * 4 + radioGroup.Height + minTextEdit.Height + maxTextEdit.Height);
                this.Controls.Add(colorPickEdit);

                          }
        }

注：

1.生成控件对象。

2.设置控件对象的显示值text属性以及宽度等属性。

3.设置控件的位置。

4.将控件添加进窗体。

主要实现代码：

  for (int i = 0; i < yList.Count; i++)
            {
                //生成一个radioGroup
                RadioGroup radioGroup = new RadioGroup();
                foreach (string s in radioGrupItems)
                {
                    //每一个单元按钮对应的选项item
                    RadioGroupItem item = new RadioGroupItem();
                    //设置选项的value值
                    item.Value = s;
                    //设置选项的描述值 即 要显示的值
                    item.Description = s;
                    //使选项启用
                    item.Enabled = true;
                    //将新增的选项添加到radiogroup的Items中
                    radioGroup.Properties.Items.Add(item);
                }
                //设置宽度
                radioGroup.Width = Global.CHART_OPTION_WIDTH;
                //加1 保留出空白选项的高度
                radioGroup.Height = Global.RADIO_HEIGHT * (radioGrupItems.Count + 1);
                //设置位置
                radioGroup.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE);
                this.Controls.Add(radioGroup);

                //添加下限输入框
                TextEdit minTextEdit = new TextEdit();
                minTextEdit.Text = yList[i].Min.ToString();
                minTextEdit.Width = Global.CHART_OPTION_WIDTH;
                minTextEdit.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE * 2 + radioGroup.Height);
                this.Controls.Add(minTextEdit);

                //添加上限输入框
                TextEdit maxTextEdit = new TextEdit();
                maxTextEdit.Text = yList[i].Max.ToString();
                maxTextEdit.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE * 3 + radioGroup.Height + minTextEdit.Height);
                maxTextEdit.Width = Global.CHART_OPTION_WIDTH;
                this.Controls.Add(maxTextEdit);

                //添加颜色选择器
                ColorPickEdit colorPickEdit = new ColorPickEdit();
                colorPickEdit.Text = yList[i].Color;
                colorPickEdit.Width = Global.CHART_OPTION_WIDTH;
                colorPickEdit.Location = new Point(Global.NOGROUP_HORIZONTAL_DISTANCE + i * horizontalDistance, Global.GROUP_VERTICAL_DISTANCE * 4 + radioGroup.Height + minTextEdit.Height + maxTextEdit.Height);
                this.Controls.Add(colorPickEdit);
               
            }

效果

 

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