Question

我有一个文本框，我希望当我们在Textbox中输入内容时，它会从Datagridview中搜索该数据。我搜索了很多，但发现搜索已经通过数据库，但我希望搜索从datagridview消失。

Answer 1

以下代码将搜索文本框中的文本是否存在于datagridview @网格中的任何单元格中（搜索整个网格）

Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim temp As Integer = 0
    For i As Integer = 0 To gv.RowCount - 1
        For j As Integer = 0 To gv.ColumnCount - 1
            If gv.Rows(i).Cells(j).Value.ToString = TextBox1.Text Then
                MsgBox("Item found")
                temp = 1
            End If
        Next
    Next
    If temp = 0 Then
        MsgBox("Item not found")
    End If
End Sub

Answer 2

以下示例使用language-integrated query (LINQ)，将网格中每个单元格的格式化值测试到给定条件，并返回匹配单元格的数组。

完全匹配（a = b）

Dim match As DataGridViewCell() = (From row As DataGridViewRow In Me.DataGridView1.Rows From cell As DataGridViewCell In row.Cells Select cell Where CStr(cell.FormattedValue) = Me.TextBox1.Text).ToArray()

模式匹配（LIKE％b％）

Dim match As DataGridViewCell() = (From row As DataGridViewRow In Me.DataGridView1.Rows From cell As DataGridViewCell In row.Cells Select cell Where CStr(cell.FormattedValue).Contains(Me.TextBox1.Text)).ToArray()

使用vb.net中的文本框从datagridview搜索数据

2 个答案: