Question

我一直在寻找代码但不幸的是我失败了，所以还有什么比问同事更好的方式。我不知道如何解释，但在这里我需要什么。我希望能够使用与单选按钮关联的文本框进行搜索。我可以找到任何与STRING相关的内容而不是整数... 这是我的代码

    Imports MySql.Data.MySqlClient

Public Class frmGuest 昏暗的MysqlConn作为MySqlConnection Dim命令为MySqlCommand Dim dbDataSet作为新DataTable Dim row As DataGridViewRow

Private Sub guestLoad()
    MysqlConn = New MySqlConnection
    MysqlConn.ConnectionString =
        "server=localhost;userid=admin;password=admin;database=gdatabases"
    Dim SDA As New MySqlDataAdapter
    Dim bsource As New BindingSource

    Try
        MysqlConn.Open()
        Dim Query As String
        Query = "select * from gdatabases.guest"
        Command = New MySqlCommand(Query, MysqlConn)
        SDA.SelectCommand = Command
        SDA.Fill(dbDataSet)
        bsource.DataSource = dbDataSet
        DataGridView1.DataSource = bsource
        SDA.Update(dbDataSet)
        MysqlConn.Close()
    Catch ex As MySqlException
        MessageBox.Show(ex.Message)
    Finally
        MysqlConn.Dispose()
    End Try
End Sub

Private Sub frmGuest_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
    guestLoad()
End Sub

    Private Sub btnSearch_Click(sender As System.Object, e As System.EventArgs) Handles btnSearch.Click
    Dim DV As New DataView(dbDataSet)
    If rdoReg.Checked Then
        DV.RowFilter = String.Format("idguest like = {0}", txtSearch.Text)
        DataGridView1.DataSource = DV
    ElseIf rdoName.Checked Then
        DV.RowFilter = String.Format("Name like '%{0}%'", txtSearch.Text)
        DataGridView1.DataSource = DV
    ElseIf rdoNRIC.Checked Then
        DV.RowFilter = String.Format("Convert(NRIC,'System.String') Like '%{0}%'", txtSearch.Text)
        DataGridView1.DataSource = DV
    End If
End Sub

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Answer 1

Private Sub btnSearch_Click(sender As System.Object, e As System.EventArgs) Handles btnSearch.Click
Dim DV As New DataView(dbDataSet.Tables(0))
If rdoReg.Checked Then
    DV.RowFilter = String.Format("idguest = {0}", txtSearch.Text)
    DataGridView1.DataSource = DV
ElseIf rdoName.Checked Then
    DV.RowFilter = String.Format("Convert(Name,'System.String') Like '%{0}%'", txtSearch.Text)
    DataGridView1.DataSource = DV
ElseIf rdoNRIC.Checked Then
    DV.RowFilter = String.Format("Convert(NRIC,'System.String') Like '%{0}%'", txtSearch.Text)
    DataGridView1.DataSource = DV
End If
End Sub

使用radiobutton搜索整数值

1 个答案: