用visual studio 2005自动生成的DataGridView怎么在操作数据时出现这样的错误阿？

Question

當傳遞擁有已刪除資料列的 DataRow 集合時，更新需要有效的 DeleteCommand。

Answer 1

倒，你的CommandName是不是叫Delete？

Answer 2

我沒寫DEL方法啊，微軟沒有幫我們實現嗎？

Answer 3

没太明白,楼主是怎么删除的数据的??楼主是不是这个意思?删除DataGridView中的记录时,同时更新到数据库中?

Answer 4

我想你可能是没有用SqlCommandBuilder...如果你不想写sql语句,让其自动生成,可以用SqlCommandBuilder...SqlDataAdapter+SqlCommandBuilder...adapter.Update(DataTable)即可..

Answer 5

namespace WindowsApplication2 {
    using System;
    
    
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "2.0.0.0")]
    [Serializable()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.ComponentModel.ToolboxItem(true)]
    [System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedDataSetSchema")]
    [System.Xml.Serialization.XmlRootAttribute("TestDataSet")]
    [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.DataSet")]
    public partial class TestDataSet : System.Data.DataSet {
        
        private memberDataTable tablemember;
        
        private System.Data.SchemaSerializationMode _schemaSerializationMode = System.Data.SchemaSerializationMode.IncludeSchema;
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        public TestDataSet() {
            this.BeginInit();
            this.InitClass();
            System.ComponentModel.CollectionChangeEventHandler schemaChangedHandler = new System.ComponentModel.CollectionChangeEventHandler(this.SchemaChanged);
            base.Tables.CollectionChanged += schemaChangedHandler;
            base.Relations.CollectionChanged += schemaChangedHandler;
            this.EndInit();
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected TestDataSet(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context) : 
                base(info, context, false) {
            if ((this.IsBinarySerialized(info, context) == true)) {
                this.InitVars(false);
                System.ComponentModel.CollectionChangeEventHandler schemaChangedHandler1 = new System.ComponentModel.CollectionChangeEventHandler(this.SchemaChanged);
                this.Tables.CollectionChanged += schemaChangedHandler1;
                this.Relations.CollectionChanged += schemaChangedHandler1;
                return;
            }
            string strSchema = ((string)(info.GetValue("XmlSchema", typeof(string))));
            if ((this.DetermineSchemaSerializationMode(info, context) == System.Data.SchemaSerializationMode.IncludeSchema)) {
                System.Data.DataSet ds = new System.Data.DataSet();
                ds.ReadXmlSchema(new System.Xml.XmlTextReader(new System.IO.StringReader(strSchema)));
                if ((ds.Tables["member"] != null)) {
                    base.Tables.Add(new memberDataTable(ds.Tables["member"]));
                }
                this.DataSetName = ds.DataSetName;
                this.Prefix = ds.Prefix;
                this.Namespace = ds.Namespace;
                this.Locale = ds.Locale;
                this.CaseSensitive = ds.CaseSensitive;
                this.EnforceConstraints = ds.EnforceConstraints;
                this.Merge(ds, false, System.Data.MissingSchemaAction.Add);
                this.InitVars();
            }
            else {
                this.ReadXmlSchema(new System.Xml.XmlTextReader(new System.IO.StringReader(strSchema)));
            }
            this.GetSerializationData(info, context);
            System.ComponentModel.CollectionChangeEventHandler schemaChangedHandler = new System.ComponentModel.CollectionChangeEventHandler(this.SchemaChanged);
            base.Tables.CollectionChanged += schemaChangedHandler;
            this.Relations.CollectionChanged += schemaChangedHandler;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Browsable(false)]
        [System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Content)]
        public memberDataTable member {
            get {
                return this.tablemember;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.BrowsableAttribute(true)]
        [System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Visible)]
        public override System.Data.SchemaSerializationMode SchemaSerializationMode {
            get {
                return this._schemaSerializationMode;
            }
            set {
                this._schemaSerializationMode = value;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
        public new System.Data.DataTableCollection Tables {
            get {
                return base.Tables;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]

Answer 6

public new System.Data.DataRelationCollection Relations {
            get {
                return base.Relations;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected override void InitializeDerivedDataSet() {
            this.BeginInit();
            this.InitClass();
            this.EndInit();
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        public override System.Data.DataSet Clone() {
            TestDataSet cln = ((TestDataSet)(base.Clone()));
            cln.InitVars();
            cln.SchemaSerializationMode = this.SchemaSerializationMode;
            return cln;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected override bool ShouldSerializeTables() {
            return false;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected override bool ShouldSerializeRelations() {
            return false;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected override void ReadXmlSerializable(System.Xml.XmlReader reader) {
            if ((this.DetermineSchemaSerializationMode(reader) == System.Data.SchemaSerializationMode.IncludeSchema)) {
                this.Reset();
                System.Data.DataSet ds = new System.Data.DataSet();
                ds.ReadXml(reader);
                if ((ds.Tables["member"] != null)) {
                    base.Tables.Add(new memberDataTable(ds.Tables["member"]));
                }
                this.DataSetName = ds.DataSetName;
                this.Prefix = ds.Prefix;
                this.Namespace = ds.Namespace;
                this.Locale = ds.Locale;
                this.CaseSensitive = ds.CaseSensitive;
                this.EnforceConstraints = ds.EnforceConstraints;
                this.Merge(ds, false, System.Data.MissingSchemaAction.Add);
                this.InitVars();
            }
            else {
                this.ReadXml(reader);
                this.InitVars();
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected override System.Xml.Schema.XmlSchema GetSchemaSerializable() {
            System.IO.MemoryStream stream = new System.IO.MemoryStream();
            this.WriteXmlSchema(new System.Xml.XmlTextWriter(stream, null));
            stream.Position = 0;
            return System.Xml.Schema.XmlSchema.Read(new System.Xml.XmlTextReader(stream), null);
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        internal void InitVars() {
            this.InitVars(true);
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        internal void InitVars(bool initTable) {
            this.tablemember = ((memberDataTable)(base.Tables["member"]));
            if ((initTable == true)) {
                if ((this.tablemember != null)) {
                    this.tablemember.InitVars();
                }
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void InitClass() {
            this.DataSetName = "TestDataSet";
            this.Prefix = "";
            this.Namespace = "http://tempuri.org/TestDataSet.xsd";
            this.EnforceConstraints = true;
            this.SchemaSerializationMode = System.Data.SchemaSerializationMode.IncludeSchema;
            this.tablemember = new memberDataTable();
            base.Tables.Add(this.tablemember);
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private bool ShouldSerializemember() {
            return false;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void SchemaChanged(object sender, System.ComponentModel.CollectionChangeEventArgs e) {
            if ((e.Action == System.ComponentModel.CollectionChangeAction.Remove)) {
                this.InitVars();
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        public static System.Xml.Schema.XmlSchemaComplexType GetTypedDataSetSchema(System.Xml.Schema.XmlSchemaSet xs) {
            TestDataSet ds = new TestDataSet();
            System.Xml.Schema.XmlSchemaComplexType type = new System.Xml.Schema.XmlSchemaComplexType();
            System.Xml.Schema.XmlSchemaSequence sequence = new System.Xml.Schema.XmlSchemaSequence();
            xs.Add(ds.GetSchemaSerializable());
            System.Xml.Schema.XmlSchemaAny any = new System.Xml.Schema.XmlSchemaAny();
            any.Namespace = ds.Namespace;
            sequence.Items.Add(any);
            type.Particle = sequence;
            return type;
        }
        
        public delegate void memberRowChangeEventHandler(object sender, memberRowChangeEvent e);
        
        [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "2.0.0.0")]
        [System.Serializable()]
        [System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedTableSchema")]
        public partial class memberDataTable : System.Data.DataTable, System.Collections.IEnumerable {
            
            private System.Data.DataColumn columnid;
            
            private System.Data.DataColumn columnname;
            
            private System.Data.DataColumn columnworkid;
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public memberDataTable() {
                this.TableName = "member";
                this.BeginInit();
                this.InitClass();
                this.EndInit();
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            internal memberDataTable(System.Data.DataTable table) {
                this.TableName = table.TableName;
                if ((table.CaseSensitive != table.DataSet.CaseSensitive)) {
                    this.CaseSensitive = table.CaseSensitive;
                }
                if ((table.Locale.ToString() != table.DataSet.Locale.ToString())) {
                    this.Locale = table.Locale;
                }
                if ((table.Namespace != table.DataSet.Namespace)) {
                    this.Namespace = table.Namespace;
                }
                this.Prefix = table.Prefix;
                this.MinimumCapacity = table.MinimumCapacity;
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected memberDataTable(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context) : 
                    base(info, context) {
                this.InitVars();
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public System.Data.DataColumn idColumn {
                get {
                    return this.columnid;
                }
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public System.Data.DataColumn nameColumn {
                get {
                    return this.columnname;
                }
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public System.Data.DataColumn workidColumn {
                get {
                    return this.columnworkid;
                }
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]
            [System.ComponentModel.Browsable(false)]
            public int Count {
                get {
                    return this.Rows.Count;
                }
            }
            
            [System.Diagnostics.DebuggerNonUserCodeAttribute()]

Answer 7

代码太多了,我就不看了,这个实现起来不难...不过如果你要用CommandBuilder的话,有几个限制条件,其中两条是你数据库中的表有主键,另外只针对单表操作...如果你装有MSDN的话,你去看看这个例子:
ms-help://MS.MSDNQTR.v80.chs/MS.MSDN.v80/MS.VisualStudio.v80.chs/dv_fxmclictl/html/1660f69c-5711-45d2-abc1-e25bc6779124.htm

Answer 8

如果没装MSDN,我把例子给你贴出来...using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;public class Form1 : System.Windows.Forms.Form
{
    private DataGridView dataGridView1 = new DataGridView();
    private BindingSource bindingSource1 = new BindingSource();
    private SqlDataAdapter dataAdapter = new SqlDataAdapter();
    private Button reloadButton = new Button();
    private Button submitButton = new Button();    [STAThreadAttribute()]
    public static void Main()
    {
        Application.Run(new Form1());
    }    // Initialize the form.
    public Form1()
    {
        dataGridView1.Dock = DockStyle.Fill;        reloadButton.Text = "reload";
        submitButton.Text = "submit";
        reloadButton.Click += new System.EventHandler(reloadButton_Click);
        submitButton.Click += new System.EventHandler(submitButton_Click);        FlowLayoutPanel panel = new FlowLayoutPanel();
        panel.Dock = DockStyle.Top;
        panel.AutoSize = true;
        panel.Controls.AddRange(new Control[] { reloadButton, submitButton });        this.Controls.AddRange(new Control[] { dataGridView1, panel });
        this.Load += new System.EventHandler(Form1_Load);
        this.Text = "DataGridView databinding and updating demo";
    }    private void Form1_Load(object sender, System.EventArgs e)
    {
        // Bind the DataGridView to the BindingSource
        // and load the data from the database.
        dataGridView1.DataSource = bindingSource1;
        GetData("select * from Customers");
    }    private void reloadButton_Click(object sender, System.EventArgs e)
    {
        // Reload the data from the database.
        GetData(dataAdapter.SelectCommand.CommandText);
    }    private void submitButton_Click(object sender, System.EventArgs e)
    {
        // Update the database with the user's changes.
        dataAdapter.Update((DataTable)bindingSource1.DataSource);
    }    private void GetData(string selectCommand)
    {
        try
        {
            // Specify a connection string. Replace the given value with a 
            // valid connection string for a Northwind SQL Server sample
            // database accessible to your system.
            String connectionString =
                "Integrated Security=SSPI;Persist Security Info=False;" +
                "Initial Catalog=Northwind;Data Source=localhost";            // Create a new data adapter based on the specified query.
            dataAdapter = new SqlDataAdapter(selectCommand, connectionString);            // Create a command builder to generate SQL update, insert, and
            // delete commands based on selectCommand. These are used to
            // update the database.
            SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter);            // Populate a new data table and bind it to the BindingSource.
            DataTable table = new DataTable();
            table.Locale = System.Globalization.CultureInfo.InvariantCulture;
            dataAdapter.Fill(table);
            bindingSource1.DataSource = table;            // Resize the DataGridView columns to fit the newly loaded content.
            dataGridView1.AutoResizeColumns( 
                DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader);
        }
        catch (SqlException)
        {
            MessageBox.Show("To run this example, replace the value of the " +
                "connectionString variable with a connection string that is " +
                "valid for your system.");
        }
    }}

Answer 9

這個論壇不能貼附件嗎，代碼太多了，貼了好幾次都沒貼完
樓上的大哥我是這樣做的，就是在visual studio 2005中用數據源中的數據拖到一個form裏面然後它就自動生成了這個DataGridView，然後還有那些按鈕，不過在調試的時候刪除和更新數據都會出現錯誤，請指教，謝謝！