C#中对DatagridView的常用操作有哪些

this.currentposition = this.dataGridView1.BindingContext

[this.dataGridView1.DataSource, this.dataGridView1.DataMember].Position;bookContent = this.database.dataSet.Tables[0].Rows

[this.currentposition][21].ToString().Trim();MessageBox.Show(bookContent);

//定义列宽this.dataGridView1.Columns[0].Width = 80;this.dataGridView1.Columns[1].Width = 80;this.dataGridView1.Columns[2].Width = 180;this.dataGridView1.Columns[3].Width = 120;this.dataGridView1.Columns[4].Width = 120;Customize Cells and Columns in the Windows Forms DataGridView Control by Extending TheirBehavior and AppearanceHost Controls in Windows Forms DataGridView Cells

Programmatically Resize Cells to Fit Content in the Windows Forms DataGridView ControlSamples：DataGridView.AutoSizeColumns(DataGridViewAutoSizeColumnCriteria.HeaderAndDisplayedRows);DataGridView.AutoSizeColumn(DataGridViewAutoSizeColumnCriteria.HeaderOnly,2, false);DataGridView.AutoSizeRow(DataGridViewAutoSizeRowCriteria.Columns,2, false);DataGridView.AutoSizeRows(DataGridViewAutoSizeRowCriteria.HeaderAndColumns,0, dataGridView1.Rows.Count, false);

Bind Objects to Windows Forms DataGridView Controls

Change the Border and Gridline Styles in the Windows Forms DataGridView ControlSamples:this.dataGridView1.GridColor = Color.BlueViolet;this.dataGridView1.BorderStyle = BorderStyle.Fixed3D;this.dataGridView1.CellBorderStyle = DataGridViewCellBorderStyle.None;this.dataGridView1.RowHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single;this.dataGridView1.ColumnHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single;

Change the Order of the Columns in the Windows Forms DataGridView ControlSamples：customersDataGridView.Columns["CustomerID"].Visible = false;customersDataGridView.Columns["ContactName"].DisplayIndex = 0;customersDataGridView.Columns["ContactTitle"].DisplayIndex = 1;customersDataGridView.Columns["City"].DisplayIndex = 2;customersDataGridView.Columns["Country"].DisplayIndex = 3;customersDataGridView.Columns["CompanyName"].DisplayIndex = 4;

Display Images in Cells of the Windows Forms DataGridView ControlSamples：Icon treeIcon = new Icon(this.GetType(), "tree.ico");DataGridViewImageColumn iconColumn = new DataGridViewImageColumn ();iconColumn.Image = treeIcon.ToBitmap();iconColumn.Name = "Tree";iconColumn.HeaderText = "Nice tree";dataGridView1.Columns.Insert(2, iconColumn);

Format Data in the Windows Forms DataGridView ControlSamples:this.dataGridView1.Columns["UnitPrice"].DefaultCellStyle.Format = "c";this.dataGridView1.Columns["ShipDate"].DefaultCellStyle.Format = "d";this.dataGridView1.DefaultCellStyle.NullValue = "no entry";this.dataGridView1.DefaultCellStyle.WrapMode = DataGridViewWrapMode.Wrap;this.dataGridView1.Columns["CustomerName"].DefaultCellStyle.Alignment =DataGridViewContentAlignment.MiddleRight;

Freeze Columns in the Windows Forms DataGridView ControlSamples：将指定列及以前的列固定不动this.dataGridView1.Columns["AddToCartButton"].Frozen = true;

Get the Selected Cells, Rows, and Columns in the Windows Forms DataGridView ControlSamples:

Handle Errors that Occur During Data Entry in the Windows Forms DataGridView ControlSamples：private void dataGridView1_DataError(object sender,DataGridViewDataErrorEventArgs e){// If the data source raises an exception when a cell value is// commited, display an error message.if (e.Exception != null &&e.Context == DataGridViewDataErrorContext.Commit){MessageBox.Show("CustomerID value must be unique.");}}

Implement Virtual Mode in the Windows Forms DataGridView Control

Make Columns in the Windows Forms DataGridView Control Read-OnlySamples：dataGridView1.Columns["CompanyName"].ReadOnly = true;

Remove Autogenerated Columns from a Windows Forms DataGridView ControlSample:dataGridView1.AutoGenerateColumns = true;dataGridView1.DataSource = customerDataSet;dataGridView1.Columns.Remove ("Fax");或：dataGridView1.Columns["CustomerID"].Visible = false;

Set the Selection Mode of the Windows Forms DataGridView ControlSample：this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;this.dataGridView1.MultiSelect = false;

Specify the Edit Mode for the Windows Forms DataGridView Controlthis.dataGridView1.EditMode = DataGridViewEditMode.EditOnEnter;

Specify Default Values for New Rows in the Windows Forms DataGridView ControlSample：private void dataGridView1_DefaultValuesNeeded

(object sender, System.Windows.Forms.DataGridViewRowEventArgs e){e.Row.Cells["Region"].Value = "WA";e.Row.Cells["City"].Value = "Redmond";e.Row.Cells["PostalCode"].Value = "98052-6399";e.Row.Cells["Region"].Value = "NA";e.Row.Cells["Country"].Value = "USA";e.Row.Cells["CustomerID"].Value = NewCustomerId();}

Validate Data in the Windows Forms DataGridView ControlSamples：private void dataGridView1_CellValidating(object sender,DataGridViewCellValidatingEventArgs e){// Validate the CompanyName entry by disallowing empty strings.if (dataGridView1.Columns[e.ColumnIndex].Name == "CompanyName"){if (e.FormattedValue.ToString() == String.Empty){dataGridView1.Rows[e.RowIndex].ErrorText ="Company Name must not be empty";e.Cancel = true;}}}

DataSet ds = new DataSet("MyDataSet");ds.Tables[biaom.Trim()].Rows.Clear();try{for (int i = 0; i < dataGridView1.Rows.Count - 1; i++){DataTable dt = ds.Tables[biaom.Trim()];DataRow myrow = ds.Tables[biaom.Trim()].NewRow();for (int j = 0; j < dataGridView1.Columns.Count; j++){myrow[j] = Convert.ToString(dataGridView1.Rows[i].Cells[j].Value);}ds.Tables[biaom.Trim()].Rows.Add(myrow);}}catch (Exception){MessageBox.Show("输入类型错误！");return;}