窗体如何与用户控件交互

2008-08-19 10:35:15 272 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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WinForm中
拿了个新窗体,在项目中加了个用户控件,功能很简单(一个ComBox,一个DataGridView用来进行下省市之间的连动)
在新窗体一个TextBox ,点一下这个文本框,显示用户控件,在ComBox里是省,选择之后,DataGridView里所属市就自动列出了,
这时,我想通过双击DataGridView里的某个市区,直接将该值写到窗体的TextBox里面去...同时这个用户控件隐藏

请高人赐教

...全文

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marvelstack 2008-08-27

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采用用户控件，和交互数据可以进一步参考这里，
Windows窗体间的数据交互
http://blog.csdn.net/zhzuo/archive/2004/04/05/22027.aspx
谈基于.net平台windows开发中的模式窗体
http://blog.csdn.net/zhzuo/archive/2006/05/05/708941.aspx
在.net应用程序中使用用户控件
http://blog.csdn.net/zhzuo/archive/2004/11/30/199599.aspx

liuhz_jsmstc 2008-08-27

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using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Data .SqlClient ;



namespace WindowsApplication4

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            SqlConnection sqlcon = Connection();

            sqlcon.Open();

            this.comboBox1.DropDownStyle = ComboBoxStyle.DropDownList;

            string strCmd = "SELECT DISTINCT PROVINCE FROM PROVINCECITYTAB ";

            SqlDataAdapter sqladp = new SqlDataAdapter(strCmd, sqlcon);

            DataSet ds = new DataSet();

            sqladp.Fill(ds, "provinceTab");

            for (int i = 0; i < ds.Tables["provinceTab"].Rows.Count; i++)

            {

                string province = ds.Tables["provinceTab"].Rows[i]["province"].ToString();

                this.comboBox1.Items.Add(province);

            }

            sqlcon.Close();

        }



        private SqlConnection Connection()

        {

            string strCon = "data source=MANNA;initial catalog=manna;integrated security=true";

            SqlConnection sqlcon = new SqlConnection(strCon );

            return sqlcon;

        }



        private void BindDataGridView()

        {

            SqlConnection sqlcon = Connection();

            sqlcon.Open();

            String strProvince=this.comboBox1 .Text ;

            string str = "SELECT CITY FROM PROVINCECITYTAB WHERE PROVINCE='" + strProvince + "'";

            SqlDataAdapter sqladp = new SqlDataAdapter(str, sqlcon);

            DataSet ds = new DataSet();

            sqladp.Fill(ds, "cityTab");

            this.dataGridView1.DataSource = ds.Tables["cityTab"];

            sqlcon.Close();

        }



        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            BindDataGridView();

        }



        private void dataGridView1_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)

        {

            SqlConnection sqlcon = Connection();

            sqlcon.Open();

            String strProvince = this.comboBox1.Text;

            string str = "SELECT CITY FROM PROVINCECITYTAB WHERE PROVINCE='" + strProvince + "'";

            SqlDataAdapter sqladp = new SqlDataAdapter(str, sqlcon);

            DataSet ds = new DataSet();

            sqladp.Fill(ds, "cityTab");

            this.dataGridView1.DataSource = ds.Tables["cityTab"];

            sqlcon.Close();



            int i = e.RowIndex;

            int j = e.ColumnIndex;

            string city = ds.Tables["cityTab"].Rows[i][j].ToString();

            this.textBox1.Text = city;

        }

    }

}

贴出来仅供参考！

吾非大神 2008-08-26

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谢谢楼上的代码

因为我用的是用户控件
我是在用户控件上添加了几个属性,并且在用户窗体上来进行主窗体的值的改变
做法是在主窗体的textbox的双击事件中将控件名传到用户控件,然后在用户控件中遍历父窗体 ...

marvelstack 2008-08-22

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另外，关注数据的交换，可以参考
Windows窗体间的数据交互
http://blog.csdn.net/zhzuo/archive/2004/04/05/22027.aspx
谈基于.net平台windows开发中的模式窗体
http://blog.csdn.net/zhzuo/archive/2006/05/05/708941.aspx

marvelstack 2008-08-22

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这个可以参考DataGrid的处理。

//在另一个窗口中修改当前选定的DataGrid的行



using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

//主窗体代码

namespace Zhzuo

{

	public class Form1 : System.Windows.Forms.Form

	{

		private System.Windows.Forms.DataGrid dataGrid1;

		private DataSet ds;

		private System.Windows.Forms.Button button1;

		/// <summary>

		/// 必需的设计器变量。

		/// </summary>

		private System.ComponentModel.Container components = null;



		public Form1()

		{

			InitializeComponent();

			ds = new DataSet("MyDataSet");

			InitData(ds);

			this.dataGrid1.DataSource = this.ds;

			this.dataGrid1.DataMember = this.ds.Tables[0].TableName;

		}



		/// <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 );

		}



		#region Windows 窗体设计器生成的代码

		/// <summary>

		/// 设计器支持所需的方法 - 不要使用代码编辑器修改

		/// 此方法的内容。

		/// </summary>

		private void InitializeComponent()

		{

			this.dataGrid1 = new System.Windows.Forms.DataGrid();

			this.button1 = new System.Windows.Forms.Button();

			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();

			this.SuspendLayout();

			// 

			// dataGrid1

			// 

			this.dataGrid1.DataMember = "";

			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;

			this.dataGrid1.Location = new System.Drawing.Point(16, 20);

			this.dataGrid1.Name = "dataGrid1";

			this.dataGrid1.Size = new System.Drawing.Size(340, 160);

			this.dataGrid1.TabIndex = 0;

			this.dataGrid1.DoubleClick += new System.EventHandler(this.dataGrid1_DoubleClick);

			// 

			// button1

			// 

			this.button1.Location = new System.Drawing.Point(264, 196);

			this.button1.Name = "button1";

			this.button1.TabIndex = 1;

			this.button1.Text = "修改";

			this.button1.Click += new System.EventHandler(this.button1_Click);

			// 

			// Form1

			// 

			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

			this.ClientSize = new System.Drawing.Size(372, 229);

			this.Controls.Add(this.button1);

			this.Controls.Add(this.dataGrid1);

			this.Name = "Form1";

			this.Text = "Form1";

			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();

			this.ResumeLayout(false);



		}

		#endregion



		private void InitData(DataSet ds)

		{

			DataTable dt = new DataTable("TabeHost");

			DataColumn dc = new DataColumn("IpAddress",typeof(string));

			dt.Columns.Add(dc);

			dc = new DataColumn("UserName",typeof(string));

			dt.Columns.Add(dc);

			dc = new DataColumn("Password",typeof(string));

			dt.Columns.Add(dc);

			ds.Tables.Add(dt);

		    

			DataRow dr = dt.NewRow();

			dr["IpAddress"] = "192.192.132.229";

			dr["UserName"] = "zhzuo";

			dr["Password"] = "zhengzuo";

			dt.Rows.Add(dr);



			dr = dt.NewRow();

			dr["IpAddress"] = "192.192.132.230";

			dr["UserName"] = "11";

			dr["Password"] = "12";

			dt.Rows.Add(dr);



			dr = dt.NewRow();

			dr["IpAddress"] = "192.192.132.231";

			dr["UserName"] = "123";

			dr["Password"] = "12";

			dt.Rows.Add(dr);



			dr = dt.NewRow();

			dr["IpAddress"] = "192.192.132.232";

			dr["UserName"] = "22";

			dr["Password"] = "788";

			dt.Rows.Add(dr);

		}



		private void button1_Click(object sender, System.EventArgs e)

		{

			DataRowView drv = (DataRowView)this.BindingContext[this.ds,this.ds.Tables[0].TableName].Current;

			Form2 form2 = new Form2(drv);

			form2.ShowDialog();



		}

		private void dataGrid1_DoubleClick(object sender, System.EventArgs e)

		{

			button1_Click(button1,EventArgs.Empty);

		}

	}

}

//子窗体代码

＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;



namespace Zhzuo

{

	/// <summary>

	/// Form2 的摘要说明。

	/// </summary>

	public class Form2 : System.Windows.Forms.Form

	{

		private System.Windows.Forms.TextBox textBox1;

		private System.Windows.Forms.TextBox textBox2;

		private System.Windows.Forms.TextBox textBox3;

		private System.Windows.Forms.Button button1;

		private System.Windows.Forms.Button button2;

		private DataRowView drv;

		/// <summary>

		/// 必需的设计器变量。

		/// </summary>

		private System.ComponentModel.Container components = null;



		public Form2(DataRowView dr)

		{

			InitializeComponent();

			this.drv = dr;

			this.textBox1.Text = (string)drv["IpAddress"];

			this.textBox2.Text = (string)drv["UserName"];

			this.textBox3.Text = (string)drv["Password"];

		}



		/// <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 );

		}



		#region Windows 窗体设计器生成的代码

		/// <summary>

		/// 设计器支持所需的方法 - 不要使用代码编辑器修改

		/// 此方法的内容。

		/// </summary>

		private void InitializeComponent()

		{

			this.textBox1 = new System.Windows.Forms.TextBox();

			this.textBox2 = new System.Windows.Forms.TextBox();

			this.textBox3 = new System.Windows.Forms.TextBox();

			this.button1 = new System.Windows.Forms.Button();

			this.button2 = new System.Windows.Forms.Button();

			this.SuspendLayout();

			// 

			// textBox1

			// 

			this.textBox1.Location = new System.Drawing.Point(28, 16);

			this.textBox1.Name = "textBox1";

			this.textBox1.TabIndex = 3;

			this.textBox1.Text = "textBox1";

			// 

			// textBox2

			// 

			this.textBox2.Location = new System.Drawing.Point(28, 56);

			this.textBox2.Name = "textBox2";

			this.textBox2.TabIndex = 4;

			this.textBox2.Text = "textBox2";

			// 

			// textBox3

			// 

			this.textBox3.Location = new System.Drawing.Point(28, 92);

			this.textBox3.Name = "textBox3";

			this.textBox3.TabIndex = 5;

			this.textBox3.Text = "textBox3";

			// 

			// button1

			// 

			this.button1.Location = new System.Drawing.Point(152, 152);

			this.button1.Name = "button1";

			this.button1.TabIndex = 6;

			this.button1.Text = "保存";

			this.button1.Click += new System.EventHandler(this.button1_Click);

			// 

			// button2

			// 

			this.button2.Location = new System.Drawing.Point(236, 152);

			this.button2.Name = "button2";

			this.button2.TabIndex = 7;

			this.button2.Text = "退出";

			this.button2.Click += new System.EventHandler(this.button2_Click);

			// 

			// Form2

			// 

			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

			this.ClientSize = new System.Drawing.Size(324, 201);

			this.Controls.Add(this.button2);

			this.Controls.Add(this.button1);

			this.Controls.Add(this.textBox3);

			this.Controls.Add(this.textBox2);

			this.Controls.Add(this.textBox1);

			this.Name = "Form2";

			this.Text = "Form2";

			this.ResumeLayout(false);



		}

		#endregion



		private void button1_Click(object sender, System.EventArgs e)

		{

			drv["IpAddress"] = this.textBox1.Text;

			drv["UserName"] = this.textBox2.Text;

			drv["Password"] = this.textBox3.Text;

		}



		private void button2_Click(object sender, System.EventArgs e)

		{

			this.Close();

		}

	}

}

吾非大神 2008-08-21

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谢谢楼上各位
写写去

pp_shy 2008-08-20

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在窗体的Form_Load事件中定义用户控件中的DataGridView双击事件



private void Form1_Load(object sender, EventArgs e)

        {

            foreach (Control control in this.userControl11.Controls)

            {

                if (control is DataGridView)

                {

                    DataGridView dgv = (DataGridView)control;

                    dgv.CellContentDoubleClick += new DataGridViewCellEventHandler(dgv_CellContentDoubleClick);

                }

            }

        }



        void dgv_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)

        {

            //这样双击事件对外提供了，处理内容略

        }

slimfeng 2008-08-20

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添加新控件的事件处理即可

LQknife 2008-08-20

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用一个公共变量存值然后赋给textbox :-)

greystar 2008-08-20

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你可自定义事件,或者将你的ComBox,DataGridView在用户控件里中暴露接口也可.这样就你可以操作了.
方式有很多种.

窗体如何与用户控件交互

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