大橙子网站建设,新征程启航
为企业提供网站建设、域名注册、服务器等服务
这篇文章主要为大家展示了“C#中对DatagridView的常用操作有哪些”,内容简而易懂,条理清晰,希望能够帮助大家解决疑惑,下面让小编带领大家一起研究并学习一下“C#中对DatagridView的常用操作有哪些”这篇文章吧。
成都创新互联公司自成立以来,一直致力于为企业提供从网站策划、网站设计、网站制作、成都网站设计、电子商务、网站推广、网站优化到为企业提供个性化软件开发等基于互联网的全面整合营销服务。公司拥有丰富的网站建设和互联网应用系统开发管理经验、成熟的应用系统解决方案、优秀的网站开发工程师团队及专业的网站设计师团队。
0(最基本的技巧)、获取某列中的某行(某单元格)中的内容
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); |
1、自定义列
//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 Their Behavior and Appearance Host Controls in Windows Forms DataGridView Cells |
继承 DataGridViewTextBoxCell 类生成新的Cell类,然后再继承 DataGridViewColumn 生成新的Column类,并指定
CellTemplate为新的Cell类。新生成的Column便可以增加到DataGridView中去。
2、自动适应列宽
Programmatically Resize Cells to Fit Content in the Windows Forms DataGridView Control Samples: 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); |
3、可以绑定并显示对象
Bind Objects to Windows Forms DataGridView Controls |
4、可以改变表格线条风格
Change the Border and Gridline Styles in the Windows Forms DataGridView Control Samples: 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; |
5、动态改变列是否显示,和动态改变列的显示顺序
Change the Order of the Columns in the Windows Forms DataGridView Control Samples: 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; |
6、可以在列中显示图像
Display Images in Cells of the Windows Forms DataGridView Control Samples: 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); |
7、格式化显示内容:
Format Data in the Windows Forms DataGridView Control Samples: 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; |
8、在拖动列的滚动条时可以将指定的列冻结
Freeze Columns in the Windows Forms DataGridView Control Samples:将指定列及以前的列固定不动 this.dataGridView1.Columns["AddToCartButton"].Frozen = true; |
9、获取选择的单元格,行,列
Get the Selected Cells, Rows, and Columns in the Windows Forms DataGridView Control Samples: |
10、显示录入时出现的错误信息
Handle Errors that Occur During Data Entry in the Windows Forms DataGridView Control Samples: 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."); }} |
11、大数据量显示采用Virtual Mode
Implement Virtual Mode in the Windows Forms DataGridView Control |
12、设置指定的列只读
Make Columns in the Windows Forms DataGridView Control Read-Only Samples: dataGridView1.Columns["CompanyName"].ReadOnly = true; |
13、移去自动生成的列
Remove Autogenerated Columns from a Windows Forms DataGridView Control Sample: dataGridView1.AutoGenerateColumns = true; dataGridView1.DataSource = customerDataSet; dataGridView1.Columns.Remove ("Fax"); 或: dataGridView1.Columns["CustomerID"].Visible = false; |
14、自定义选择模式
Set the Selection Mode of the Windows Forms DataGridView Control Sample: this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect; this.dataGridView1.MultiSelect = false; |
15、自定义设定光标进入单元格是否编辑模式(编辑模式)
Specify the Edit Mode for the Windows Forms DataGridView Control this.dataGridView1.EditMode = DataGridViewEditMode.EditOnEnter; |
16、新行指定默认值
Specify Default Values for New Rows in the Windows Forms DataGridView Control Sample: 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(); } |
17、数据验证
Validate Data in the Windows Forms DataGridView Control Samples: 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; }}} |
18、数据提交到dataset中
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; } |
以上是“C#中对DatagridView的常用操作有哪些”这篇文章的所有内容,感谢各位的阅读!相信大家都有了一定的了解,希望分享的内容对大家有所帮助,如果还想学习更多知识,欢迎关注创新互联行业资讯频道!