如何在DataGridView实现删除功能
日期：2014-05-18 浏览次数：21255 次
怎么在DataGridView实现删除功能
想点DataGridView中显示的一行，然后点删除按钮实现删除
求代码
------解决方案--------------------
Private Sub Del_Data()
Dim i As Integer = DataGridView1.Rows.Count
For i = 0 To DataGridView1.Rows.Count - 1
If DataGridView1.Rows(i).Selected Then
Del_Record_DataBase(DataGridView1.Rows(i).Cells(0).Value)
i = DataGridView1.Rows.Count + 1
End If
Next
End Sub
Private Sub Del_Record_DataBase(ByVal id As String)
Dim Conn As OleDbConnection = New OleDbConnection(strCon)
plConn.Open()
Dim strDele As String = "DELETE FROM file WHERE xh= " + id.Trim() + ""
Dim Command As OleDbCommand = New OleDbCommand(strDele, Conn)
Command.ExecuteNonQuery()
Conn.Close()
End Sub
------解决方案--------------------
想点DataGridView中显示的一行，然后点删除按钮实现删除
求代码
------解决方案--------------------
Private Sub Del_Data()
Dim i As Integer = DataGridView1.Rows.Count
For i = 0 To DataGridView1.Rows.Count - 1
If DataGridView1.Rows(i).Selected Then
Del_Record_DataBase(DataGridView1.Rows(i).Cells(0).Value)
i = DataGridView1.Rows.Count + 1
End If
Next
End Sub
Private Sub Del_Record_DataBase(ByVal id As String)
Dim Conn As OleDbConnection = New OleDbConnection(strCon)
plConn.Open()
Dim strDele As String = "DELETE FROM file WHERE xh= " + id.Trim() + ""
Dim Command As OleDbCommand = New OleDbCommand(strDele, Conn)
Command.ExecuteNonQuery()
Conn.Close()
End Sub
------解决方案--------------------
- C# code
private void button1_Click(object sender, EventArgs e)
{
DataRowView rowView = this.dataGridView1.CurrentRow.DataBoundItem as DataRowView;
if (rowView != null)
{
DataRow currentRow = rowView.Row;
//获取主键
string id = currentRow["ID"];
//调用数据库里的删除方法：
string sql = "DELETE FROM TABLE_NAME WHERE ID='" + id + "'";
//数据库操作
}
}
------解决方案--------------------
- C# code
if (dataGridViewX1.Rows.Count > 0)
{
if (dataGridViewX1.CurrentRow != null)
{
if (dataGridViewX1.SelectedRows.Count == 0)
{
dataGridViewX1.Rows.Remove(dataGridViewX1.CurrentRow);
dt.AcceptChanges();//绑定datagridview的表
}
else
{
try
{
for (int i = dataGridViewX1.SelectedRows.Count; i > 0; i--)
{
dataGridViewX1.Rows.RemoveAt(dataGridViewX1.SelectedRows[i - 1].Index);
}
dt.AcceptChanges();//绑定datagridview的表
}
catch (Exception)
{
MessageBox.Show("无法删除空行!", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
}
}
else
{
MessageBox.Show("请选择删除的行!","提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
}
else
{
MessageBox.Show("没有可删除数据!", "提示信息",MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
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