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包含vb.net填充字符的詞條

vb.net如何在文本框里輸入字符,已經(jīng)綁定數(shù)據(jù)源的Listbox里面就自動(dòng)跳轉(zhuǎn)到該條目

Private Sub Text1_Change()

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For x = 0 To List1.ListCount - 1

If Text1.Text = List1.List(x) Then

List1.Selected(x) = True

End If

Next x

End Sub

VB.NET 向指定(網(wǎng)頁或軟件)的輸入框內(nèi)輸入字符,如何實(shí)現(xiàn)?

假如Form1有個(gè)TextBox1,雙擊TextBox1填入123

Public Class Form1

Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Integer, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Integer

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

End Sub

Private Sub TextBox1_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.DoubleClick

System.Windows.Forms.SendKeys.Send("123")

End Sub

End Class

看你的VB.NET 版本了

用 My.Computer.Keyboard.SendKeys("123", True) 代替 System.Windows.Forms.SendKeys.Send("123") 也可以

原碼:

Public Class Form1

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

End Sub

Private Sub TextBox1_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.DoubleClick

My.Computer.Keyboard.SendKeys("123", True)

End Sub

End Class

Vb.net添加字符

有甚多辦法,我說個(gè)最簡(jiǎn)單的

dim xstr as string = "abcde"

Xstr = "(" xstr ")"

VB.net中如何給字符串組賦值?

dim Userlist() as string

redim Userlist(10)

for i=0 to 10

userlist(i) = i

Next

這樣就行

vb.net 實(shí)現(xiàn)ComboBox輸入字符自動(dòng)補(bǔ)充字符

Public?Sub?AutoComplete(ByVal?cmb?As?ComboBox,?ByVal?e?As?System.Windows.Forms.KeyPressEventArgs)

If?cmb.DataSource?Is?Nothing?Then

Return

End?If

If?e.KeyChar?=?Microsoft.VisualBasic.ChrW(Keys.Enter)?Then

Return

End?If

Dim?strFindStr?As?String?=?""

If?e.KeyChar?=?Microsoft.VisualBasic.ChrW(Keys.Back)?Then

If?(cmb.SelectionStart?=?cmb.Text.Length)?Then

If?cmb.Text.Length??0?Then

strFindStr?=?cmb.Text.Substring(0,?cmb.Text.Length?-?1)

End?If

Else

If?cmb.SelectionStart??0?Then

strFindStr?=?cmb.Text.Substring(0,?cmb.SelectionStart?-?1)

End?If

End?If

e.Handled?=?False

Else

If?(cmb.SelectionLength?=?0)?Then

strFindStr?=?cmb.Text?+?e.KeyChar

Else

If?(cmb.SelectionStart?=?cmb.Text.Length)?Then

strFindStr?=?e.KeyChar

Else

If?cmb.SelectionStart??0?Then

strFindStr?=?cmb.Text.Substring(0,?cmb.SelectionStart?-?1)?+?e.KeyChar

Else

strFindStr?=?e.KeyChar

End?If

End?If

End?If

End?If

Dim?intIdx?As?Integer?=?-1

Dim?dv?As?DataView

If?TypeOf?(cmb.DataSource)?Is?DataTable?Then

dv?=?CType(cmb.DataSource,?DataTable).DefaultView

If?strFindStr??""?Then

dv.RowFilter?=?cmb.DisplayMember??"?Like?'%"??strFindStr??"%'"

Else

dv.RowFilter?=?""

End?If

cmb.DataSource?=?dv

cmb.SelectedIndex?=?-1

cmb.Text?=?strFindStr

Else

dv?=?CType(cmb.DataSource,?DataView)

If?strFindStr??""?Then

dv.RowFilter?=?cmb.DisplayMember??"?Like?'%"??strFindStr??"%'"

Else

dv.RowFilter?=?""

End?If

cmb.DataSource?=?dv

cmb.SelectedIndex?=?-1

cmb.Text?=?strFindStr

End?If

cmb.SelectionStart?=?strFindStr.Length

e.Handled?=?True

End?Sub

Private?Sub?comboBox1_KeyPress(ByVal?sender?As?System.Object,?ByVal?e?As?System.Windows.Forms.KeyPressEventArgs)?Handles?comboBox1.KeyPress

AutoComplete(sender,?e)

End?Sub

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