Winforn中使用代码动态生成控件

╰+攻爆jí腚メ 2024-04-18 12:24 66阅读 0赞

## 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<YAxisModel> yList = ChartOptionHelper.getYAxisList(xmlFilePath);
                //获取配置文件中的radioGroup的选项
                List<string> 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 ##

![20190906153844146.jpg][]

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[20190906153844146.jpg]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/72053de70e5444848aecd026f25bf171.jpg