添加DataGridViewCheckBoxCell

Question

简单的代码行：

myGrid.Columns.Add("Question", "Question")
myGrid.Columns.Add("Answers", "Answers")

myGrid.Rows.Add()

myGrid.Rows(0).Cells("Question").Value = "dummy checkbox test"

Dim chk As New DataGridViewCheckBoxCell
chk.TrueValue = "1"
chk.FalseValue = "0"
myGrid.Rows(0).Cells("Answers").Value = "0"
myGrid.Rows(0).Cells("Answers") = chk

将导致"System.FormatException:格式化的单元格的值类型错误“。当表单执行时。

知道为什么吗？谢谢

Answer 1

您在myGrid.Rows(0).Cells("Answers").Value = "0"中将单元格格式化为DataGridViewTextBoxCell。更改设置单元格类型和设置值过程的顺序，如下所示：

myGrid.Rows(0).Cells("Answers") = chk
myGrid.Rows(0).Cells("Answers").Value = "0"

或者，如果要为列的所有单元格设置true/false值，则可以简单地将"Answers“列添加为DataGridViewCheckBoxColumn：

myGrid.Columns.Add("Question", "Question")
Dim chkColumn As New DataGridViewCheckBoxColumn
chkColumn.Name = "Answers"
chkColumn.HeaderText = "Answers"
myGrid.Columns.Add(chkColumn)

myGrid.Rows(0).Cells("Question").Value = "dummy checkbox test"
myGrid.Rows(0).Cells("Answers").Value = false