复选框选中逗号值用vb.net sepearted字符串中的文本框！ [英] checkbox selected values in comma sepearted string in textbox using vb.net !

问题描述

我有3个复选框和1文本

I have 3 checkboxes and 1 textbox

checkbox1，checkbox2，checkbox3

checkbox1, checkbox2, checkbox3

当我检查第一checkbox1然后checkbox3然后在文本框将显示为1,3正是........ !!

when i check first checkbox1 and then checkbox3 then in textbox it will appear as 1,3 exactly........ !!

vb.net只.........

using vb.net only.........

推荐答案

尝试：

Private Sub CheckBox_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox3.CheckedChanged, CheckBox2.CheckedChanged, CheckBox1.CheckedChanged

    Dim sb As New System.Text.StringBuilder
    sb.Append(CStr(IIf(CheckBox1.Checked, "1 ", "")))
    sb.Append(CStr(IIf(CheckBox2.Checked, "2 ", "")))
    sb.Append(CStr(IIf(CheckBox3.Checked, "3 ", "")))
    TextBox1.Text = sb.ToString.Trim
End Sub

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