Please start any new threads on our new
site at https://forums.sqlteam.com. We've got lots of great SQL Server
experts to answer whatever question you can come up with.
| Author |
Topic |
|
markyjj
Starting Member
8 Posts |
 Posted - 2008-08-31 : 12:23:28
|
| Can someone please help me with the following problem. I want to update a sql database table through a dataset on a windows form, the problem being that I want to do the update from a 2nd form. The dataset is created on the 1st form and I am not sure if I am referencing it correctly. I have tried making the dataset static and public but the changes are not showing in the sql database once I carry out the update.The code for the 2 forms I am using is below....any help would be appreciated//FORM1//using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.Data.Common;using System.Data.SqlClient;namespace MovieBase1{/// <summary>/// Summary description for Form1./// </summary>public class Form1 : System.Windows.Forms.Form{private System.Windows.Forms.Button button1;private System.Windows.Forms.Button button2;private System.Windows.Forms.Button button3;private System.Windows.Forms.Button button4;private System.Windows.Forms.Button button5;private System.Windows.Forms.Button button6;private System.Windows.Forms.Label label1;/// <summary>/// Required designer variable./// </summary>private System.ComponentModel.Container components = null;public static SqlConnection Mcon = new SqlConnection("workstation id=SHERMAN2;packet size=4096;integrated security=SSPI;data source=\"SH" +"ERMAN2\\SQLEXPRESS\";persist security info=True;initial catalog=MDatabase";public SqlCommand Movcmd = Mcon.CreateCommand();private System.Windows.Forms.Button button7;internal static SqlDataAdapter MovAdapt = new SqlDataAdapter("SELECT * FROM MovTable1", Mcon);public static DataTableMapping myNewMapping =new DataTableMapping("MovMap","MovTable1";Form3 F3;public static DataSet Movset1 = new DataSet();public Form1(){//// Required for Windows Form Designer support//InitializeComponent();F3 = new Form3(); //// TODO: Add any constructor code after InitializeComponent call//}/// <summary>/// Clean up any resources being used./// </summary>protected override void Dispose( bool disposing ){if( disposing ){if (components != null) {components.Dispose();}}base.Dispose( disposing );}#region Windows Form Designer generated code/// <summary>/// Required method for Designer support - do not modify/// the contents of this method with the code editor./// </summary>private void InitializeComponent(){this.button1 = new System.Windows.Forms.Button();this.button2 = new System.Windows.Forms.Button();this.button3 = new System.Windows.Forms.Button();this.button4 = new System.Windows.Forms.Button();this.button5 = new System.Windows.Forms.Button();this.button6 = new System.Windows.Forms.Button();this.label1 = new System.Windows.Forms.Label();this.button7 = new System.Windows.Forms.Button();this.SuspendLayout();// // button1// this.button1.Location = new System.Drawing.Point(304, 72);this.button1.Name = "button1";this.button1.TabIndex = 0;this.button1.Text = "Delete Film";this.button1.Click += new System.EventHandler(this.button1_Click);// // button2// this.button2.Location = new System.Drawing.Point(328, 120);this.button2.Name = "button2";this.button2.TabIndex = 1;this.button2.Text = "Current Movie Count";this.button2.Click += new System.EventHandler(this.button2_Click);// // button3// this.button3.Location = new System.Drawing.Point(336, 16;this.button3.Name = "button3";this.button3.TabIndex = 2;this.button3.Text = "Movie List";this.button3.Click += new System.EventHandler(this.button3_Click);// // button4// this.button4.Location = new System.Drawing.Point(336, 20;this.button4.Name = "button4";this.button4.TabIndex = 3;this.button4.Text = "Exit";this.button4.Click += new System.EventHandler(this.button4_Click);// // button5// this.button5.Location = new System.Drawing.Point(336, 264);this.button5.Name = "button5";this.button5.TabIndex = 4;this.button5.Text = "button5";this.button5.Click += new System.EventHandler(this.button5_Click);// // button6// this.button6.Location = new System.Drawing.Point(328, 16);this.button6.Name = "button6";this.button6.TabIndex = 5;this.button6.Text = "Add Film";this.button6.Click += new System.EventHandler(this.button6_Click);// // label1// this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));this.label1.Location = new System.Drawing.Point(32, 16);this.label1.Name = "label1";this.label1.TabIndex = 6;this.label1.Text = "Movie Base";// // button7// this.button7.Location = new System.Drawing.Point(80, 152);this.button7.Name = "button7";this.button7.Size = new System.Drawing.Size(168, 23);this.button7.TabIndex = 7;this.button7.Text = "button7";this.button7.Click += new System.EventHandler(this.button7_Click);// // Form1// this.AccessibleDescription = "public";this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);this.ClientSize = new System.Drawing.Size(432, 366);this.Controls.Add(this.button7);this.Controls.Add(this.label1);this.Controls.Add(this.button6);this.Controls.Add(this.button5);this.Controls.Add(this.button4);this.Controls.Add(this.button3);this.Controls.Add(this.button2);this.Controls.Add(this.button1);this.Name = "Form1";this.Text = "Form1";this.ResumeLayout(false);}#endregion/// <summary>/// The main entry point for the application./// </summary>[STAThread]static void Main() {Application.Run(new Form1()); }private void button6_Click(object sender, System.EventArgs e){MessageBox.Show("under construction";}private void button1_Click(object sender, System.EventArgs e){MessageBox.Show("under construction";}private void button2_Click(object sender, System.EventArgs e){MessageBox.Show(" under constructiion ";}public void button3_Click(object sender, System.EventArgs e){ SqlCommandBuilder cb = new SqlCommandBuilder(MovAdapt);MovAdapt.Fill(Movset1, "MovTable1";F3.dataGrid1.DataSource = Movset1;F3.Movset2 = Movset1;F3.Show(); }private void button4_Click(object sender, System.EventArgs e){this.Close();}private void button5_Click(object sender, System.EventArgs e){MessageBox.Show("under construction";}private void button7_Click(object sender, System.EventArgs e){}}}--------------------------------------------------------------------------------//FORM2//using System;using System.Data;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data.SqlClient;namespace MovieBase1{/// <summary>/// Summary description for Form3./// </summary>public class Form3 : System.Windows.Forms.Form{public System.Windows.Forms.DataGrid dataGrid1;public System.Windows.Forms.Button button1;/// <summary>/// Required designer variable./// </summary>private System.ComponentModel.Container components = null;public DataSet Movset2;public DataSet MVset{get{return Movset2;}set{Movset2 = value;}}public Form3(){//// Required for Windows Form Designer support//InitializeComponent();}/// <summary>/// Clean up any resources being used./// </summary>protected override void Dispose( bool disposing ){if( disposing ){if(components != null){components.Dispose();}}base.Dispose( disposing );}#region Windows Form Designer generated code/// <summary>/// Required method for Designer support - do not modify/// the contents of this method with the code editor./// </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.AccessibleDescription = "internal static";this.dataGrid1.AccessibleName = "";this.dataGrid1.DataMember = "";this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;this.dataGrid1.Location = new System.Drawing.Point(0, 0);this.dataGrid1.Name = "dataGrid1";this.dataGrid1.Size = new System.Drawing.Size(416, 120);this.dataGrid1.TabIndex = 0;this.dataGrid1.Navigate += new System.Windows.Forms.NavigateEventHandler(this.dataGrid1_Navigate);// // button1// this.button1.Location = new System.Drawing.Point(88, 184);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(112, 23);this.button1.TabIndex = 1;this.button1.Text = "Save and Update ";this.button1.Click += new System.EventHandler(this.button1_Click);// // Form3// this.AccessibleDescription = "Public";this.AccessibleName = "Form3";this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);this.ClientSize = new System.Drawing.Size(496, 294);this.Controls.Add(this.button1);this.Controls.Add(this.dataGrid1);this.Name = "Form3";this.Text = "Form3";((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();this.ResumeLayout(false);}#endregionpublic void dataGrid1_Navigate(object sender, System.Windows.Forms.NavigateEventArgs ne){}public void button1_Click(object sender, System.EventArgs e){ Movset2.AcceptChanges();Form1.MovAdapt.Update(Movset2, "MovTable1";Form1.Mcon.Close(); }}} |
|
|
|
|
|
|
|
HOW DO I ACCESS SHARED DATASET!!!