c# winform实现控件类型、数量的动态更新

c# winform窗体实现控件内容的动态更新

在系统开发的过程中，往往会遇到需要动态的控制控件内部显示的控件数量、控件类型的情况，比如这样的。

1、问题描述：如何自定义的控制控件中数据显示的类型呢？
首先面对这个问题，我们得先了解winform的控制工具中有哪些控件是可以用来承载其他控件工具的，例如以下控件都可以用来承载其他控件工具，那么就可以使用这些控件来动态的实现工具栏的生成。

此处采用一个panel控件进行演示。
首先，我们添加一个winform窗体，然后往该窗体中拖入一个panel控件


在这个窗体中我们插入一个comboBox控件，用于控制panel中生成工具栏的数量，此外每个工具栏中还将包括不同的控件工具，例如包括 textbox、label、button、radioButton，checkbox等等，只要是你需要的控件工具都可以自行添加。

我们进入button按钮下，开始编写用于panel内部控件绘制的代码

privatevoidbutton1_Click(object sender,EventArgs e){
            panel1.Controls.Clear();Label panel_show_label =newLabel(){
                Name ="resulr_list_table",
                Text ="标签",
                ForeColor = ColorTranslator.FromHtml("#000000"),
                Height =20,
                Width =40};
            panel_show_label.TextAlign = ContentAlignment.MiddleCenter;
            panel_show_label.Location =newPoint(35,5);
            panel1.Controls.Add(panel_show_label);Label panel_show_id =newLabel(){
                Name ="resulr_list_id",
                Text ="关联ID",
                ForeColor = ColorTranslator.FromHtml("#000000"),
                Height =20,
                Width =50};
            panel_show_id.TextAlign = ContentAlignment.MiddleCenter;
            panel_show_id.Location =newPoint(panel_show_label.Right +10,5);
            panel1.Controls.Add(panel_show_id);Label resulr_list_lev =newLabel(){
                Name ="resulr_list_lev",
                Text ="离开",
                ForeColor = ColorTranslator.FromHtml("#000000"),
                Height =20,
                Width =40};
            resulr_list_lev.TextAlign = ContentAlignment.MiddleCenter;
            resulr_list_lev.Location =newPoint(panel_show_id.Right +10,5);
            panel1.Controls.Add(resulr_list_lev);Label resulr_list_notLev =newLabel(){
                Name ="resulr_list_notLev",
                Text ="未离开",
                ForeColor = ColorTranslator.FromHtml("#000000"),
                Height =20,
                Width =60};
            resulr_list_notLev.TextAlign = ContentAlignment.MiddleCenter;
            resulr_list_notLev.Location =newPoint(resulr_list_lev.Right +10,5);
            panel1.Controls.Add(resulr_list_notLev);Label resulr_list_dlt =newLabel(){
                Name ="resulr_list_dlt",
                Text ="删除",
                ForeColor = ColorTranslator.FromHtml("#000000"),
                Height =20,
                Width =40};
            resulr_list_dlt.TextAlign = ContentAlignment.MiddleCenter;
            resulr_list_dlt.Location =newPoint(resulr_list_notLev.Right +10,5);
            panel1.Controls.Add(resulr_list_dlt);Label resulr_list_see =newLabel(){
                Name ="resulr_list_see",
                Text ="可见",
                ForeColor = ColorTranslator.FromHtml("#000000"),
                Height =20,
                Width =40};
            resulr_list_see.TextAlign = ContentAlignment.MiddleCenter;
            resulr_list_see.Location =newPoint(resulr_list_dlt.Right +10,5);
            panel1.Controls.Add(resulr_list_see);
            panel1.Width = resulr_list_see.Right +40;int resNumList =int.Parse(comboBox1.Text);for(int i =0; i < resNumList; i++){Panel panel =newPanel(){
                    Name ="reg_panel_"+ i.ToString(),
                    Width = panel1.Width,
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    BackColor = ColorTranslator.FromHtml("#D3D3D3"),
                    Height =30};Label index_label =newLabel(){
                    Name ="reg_index_"+ i.ToString(),
                    Text = i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    Height =20,
                    Width =30};
                index_label.TextAlign = ContentAlignment.MiddleCenter;
                index_label.Location =newPoint(0,5);
                panel.Controls.Add(index_label);Label reg_label =newLabel(){
                    Name ="reg_label_"+ i.ToString(),
                    Text = i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    BackColor = ColorTranslator.FromHtml("#FFA500"),
                    Height =20,
                    Width =40};
                reg_label.TextAlign = ContentAlignment.MiddleCenter;
                reg_label.Location =newPoint(30+5,5);
                panel.Controls.Add(reg_label);Label reg_id =newLabel(){
                    Name ="reg_id_"+ i.ToString(),
                    Text = i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    Height =20,
                    Width =40};
                reg_id.TextAlign = ContentAlignment.MiddleCenter;
                reg_id.Location =newPoint(panel_show_id.Location.X,5);
                panel.Controls.Add(reg_id);//reg_id.Click += new System.EventHandler(panel1_EventChange);RadioButton reg_lev =newRadioButton(){
                    Name ="reg_lev_"+ i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    Height =20,
                    Width =40};
                reg_lev.Location =newPoint(10+ resulr_list_lev.Location.X,5);
                panel.Controls.Add(reg_lev);RadioButton reg_notLev =newRadioButton(){
                    Name ="reg_notLev_"+ i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    Height =20,
                    Width =40};
                reg_notLev.Location =newPoint(15+ resulr_list_notLev.Location.X,5);
                panel.Controls.Add(reg_notLev);RadioButton reg_dlt =newRadioButton(){
                    Name ="reg_dlt_"+ i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    Height =20,
                    Width =40};

                reg_dlt.Location =newPoint(10+ resulr_list_dlt.Location.X,5);
                panel.Controls.Add(reg_dlt);CheckBox reg_see =newCheckBox(){
                    Name ="reg_see_"+ i.ToString(),
                    ForeColor = ColorTranslator.FromHtml("#000000"),
                    Height =20,
                    Width =40};
                reg_see.Location =newPoint(10+ resulr_list_see.Location.X,5);
                panel.Controls.Add(reg_see);

                panel.Location =newPoint(0, panel_show_label.Bottom + i *35);
                panel1.Controls.Add(panel);}}

需要注意的是，在工具栏中我们用到了三个RadioButton，所以需要在工具栏的生成还需要使用一个panel控件来容纳所需的控件工具。

Panel panel =newPanel(){
    Name ="reg_panel_"+ i.ToString(),
    Width = panel1.Width,
    ForeColor = ColorTranslator.FromHtml("#000000"),
    BackColor = ColorTranslator.FromHtml("#D3D3D3"),
    Height =30};

最后当所有工具添加完成后再将该panel控件加入到panel1容器中。

panel1.Controls.Add(panel);

本文仅就控件内控件工具的动态控制和跟新进行简单的介绍，相对复杂的控件处理可以在上述方法的基础上进行修改或改进。