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這篇文章主要為大家展示了“C#中對DatagridView的常用操作有哪些”，內容簡而易懂，條理清晰，希望能夠幫助大家解決疑惑，下面讓小編帶領大家一起研究并學習一下“C#中對DatagridView的常用操作有哪些”這篇文章吧。
0(最基本的技巧)、獲取某列中的某行(某單元格)中的內容
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、自定義列
//定義列寬 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 |
繼承 DataGridViewTextBoxCell 類生成新的Cell類，然后再繼承 DataGridViewColumn 生成新的Column類，并指定
CellTemplate為新的Cell類。新生成的Column便可以增加到DataGridView中去。
2、自動適應列寬
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、可以綁定并顯示對象
Bind Objects to Windows Forms DataGridView Controls |
4、可以改變表格線條風格
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、動態改變列是否顯示，和動態改變列的顯示順序
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、可以在列中顯示圖像
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、格式化顯示內容:
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、在拖動列的滾動條時可以將指定的列凍結
Freeze Columns in the Windows Forms DataGridView Control Samples：將指定列及以前的列固定不動 this.dataGridView1.Columns["AddToCartButton"].Frozen = true; |
9、獲取選擇的單元格,行,列
Get the Selected Cells, Rows, and Columns in the Windows Forms DataGridView Control Samples: |
10、顯示錄入時出現的錯誤信息
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、大數據量顯示采用Virtual Mode
Implement Virtual Mode in the Windows Forms DataGridView Control |
12、設置指定的列只讀
Make Columns in the Windows Forms DataGridView Control Read-Only Samples： dataGridView1.Columns["CompanyName"].ReadOnly = true; |
13、移去自動生成的列
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、自定義選擇模式
Set the Selection Mode of the Windows Forms DataGridView Control Sample： this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect; this.dataGridView1.MultiSelect = false; |
15、自定義設定光標進入單元格是否編輯模式（編輯模式）
Specify the Edit Mode for the Windows Forms DataGridView Control this.dataGridView1.EditMode = DataGridViewEditMode.EditOnEnter; |
16、新行指定默認值
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、數據驗證
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、數據提交到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("輸入類型錯誤！");
return;
} |
以上是“C#中對DatagridView的常用操作有哪些”這篇文章的所有內容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內容對大家有所幫助，如果還想學習更多知識，歡迎關注億速云行業資訊頻道！
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