对DataGrid的初步了解

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对DataGrid的初步了解

由于以前对DataGrid的了解相当初浅，只能用来显示数据
今天做了一下对DataGrid的深入学习
通过在网上搜索相关资料，总算能让例子达到自己的初步要求
也开始明白为什么别人说学习是一个循序渐进的过程
主要用到的一些代码：

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Xml;

namespace ReadAndWrite
{
    /**//// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.DataGrid dataGrid1;
        private System.Windows.Forms.Button btn_BroswerXML;
        private System.Data.DataSet ds;
        private System.Windows.Forms.RichTextBox richTextBox1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.DataGridTableStyle dataGridTableStyle1;
        private System.Windows.Forms.DataGridBoolColumn dataGridBoolColumn1;
        private System.Windows.Forms.Button button2;

        private bool flag =false;
        /**//// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Form1()
        {
            //
            // Windows 窗体设计器支持所必需的
            //
            InitializeComponent();

            //
            // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
            //
        }

        /**//// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        Windows 窗体设计器生成的代码

        /**//// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }

        private void btn_BroswerXML_Click(object sender, System.EventArgs e)
        {
            try
            {
                OpenFileDialog openFileDialog = new OpenFileDialog();
                openFileDialog.InitialDirectory =@"F:\";
                openFileDialog.Filter ="XML文件|*.xml";
                openFileDialog.RestoreDirectory =true;
                openFileDialog.FilterIndex =1;
                if(openFileDialog.ShowDialog()==DialogResult.OK)
                {
                    flag =true;
                    ds.ReadXml(openFileDialog.FileName);
                    this.dataGrid1.DataSource =ds.Tables["Item"];
                }
                ds.Tables["Item"].Columns.Add("Current",typeof(bool));
                //STEP 1: Create a DataTable style object and set properties if required.
                DataGridTableStyle ts1 = new DataGridTableStyle();

                //specify the table from dataset (required step)
                ts1.MappingName = "Item";

                // Set other properties (optional step)
                ts1.AlternatingBackColor = Color.LightBlue;

                //STEP 2: Create a string column and add it to the tablestyle
                DataGridColumnStyle TextCol = new DataGridTextBoxColumn();
                TextCol.MappingName = "custName"; //from dataset table
                TextCol.HeaderText = "Customer Name";
                TextCol.Width = 100;
                ts1.GridColumnStyles.Add(TextCol);

                //STEP 3: Create an int column style and add it to the tablestyle
                //this requires setting the format for the column through its property descriptor
                PropertyDescriptorCollection pdc = this.BindingContext
                    [ds, "Item"].GetItemProperties();

                //now created a formated column using the pdc
//                DataGridTextBoxColumn csIDInt =
//                    new DataGridTextBoxColumn(pdc["CustID"], "i", true);
//                csIDInt.MappingName = "CustID";
//                csIDInt.HeaderText = "CustID";
//                csIDInt.Width = 50;
//                ts1.GridColumnStyles.Add(csIDInt);
                DataGridTextBoxColumn csIDInt = new DataGridTextBoxColumn();
                csIDInt.MappingName="SID";
                csIDInt.HeaderText="SID";
                csIDInt.Width=100;
                ts1.GridColumnStyles.Add(csIDInt);

                csIDInt = new DataGridTextBoxColumn();
                csIDInt.MappingName="TID";
                csIDInt.HeaderText="TID";
                csIDInt.Width=100;
                ts1.GridColumnStyles.Add(csIDInt);

                csIDInt = new DataGridTextBoxColumn();
                csIDInt.MappingName="IID";
                csIDInt.HeaderText="IID";
                csIDInt.Width=100;
                ts1.GridColumnStyles.Add(csIDInt);

                csIDInt = new DataGridTextBoxColumn();
                csIDInt.MappingName="Des";
                csIDInt.HeaderText="Des";
                csIDInt.Width=100;
                ts1.GridColumnStyles.Add(csIDInt);

                csIDInt = new DataGridTextBoxColumn();
                csIDInt.MappingName="DataType";
                csIDInt.HeaderText="DataType";
                csIDInt.Width=50;
                ts1.GridColumnStyles.Add(csIDInt);

                csIDInt = new DataGridTextBoxColumn();
                csIDInt.MappingName="TagType";
                csIDInt.HeaderText="TagType";
                csIDInt.Width=50;
                ts1.GridColumnStyles.Add(csIDInt);

                //STEP 4: Add the checkbox
                DataGridColumnStyle boolCol = new DataGridBoolColumn();
                boolCol.MappingName = "Current";
                boolCol.HeaderText = "请选择要导入的行：";
                boolCol.Width = 100;
                ts1.GridColumnStyles.Add(boolCol);

                //STEP 5: Add the tablestyle to your datagrid抯 tablestlye collection
                this.dataGrid1.TableStyles.Add(ts1);

                ds.Tables["Item"].Rows[0]["Current"]=true;
                ds.Tables["Item"].Rows[1]["Current"]=false;
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void button1_Click(object sender, System.EventArgs e)
        {
            Form2 form = new Form2();
            form.Show();
        }

        private void Form1_Load(object sender, System.EventArgs e)
        {

        }

        private void button2_Click(object sender, System.EventArgs e)
        {
            if(flag ==false)
            {
                MessageBox.Show("还没有选取XML文档！");
            }
            else
            {
                for(int i=0;i<ds.Tables["Item"].Rows.Count;i++)
                {
                    if(ds.Tables["Item"].Rows[i]["Current"].Equals(true))
                    {
                        this.richTextBox1.Text+="\n"+ds.Tables["Item"].Rows[i]["TID"].ToString();
                    }
                }
            }
        }

    }
}
还有许多不明白的地方，以后将进一步对XML操作的学习。

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原文地址：https://www.cnblogs.com/liuwenjun830/p/394177.html