.net 将字符串数组绑定到datagridview的列
我正在设计一个带有datagridview的winform。.net 将字符串数组绑定到datagridview的列,.net,winforms,datagridview,datatable,.net,Winforms,Datagridview,Datatable,我正在设计一个带有datagridview的winform。 我正在为该datagridview分配一个datatable DataTable dt = new DataTable(); dt.Columns.Add("items", typeof(string[])); dt.Columns.Add("dateSold", typeof(string)); for (int i = 0; i < 6; i++) { dt.Rows.Add(dt.NewRow()); d
我正在为该datagridview分配一个datatable
DataTable dt = new DataTable();
dt.Columns.Add("items", typeof(string[]));
dt.Columns.Add("dateSold", typeof(string));
for (int i = 0; i < 6; i++)
{
dt.Rows.Add(dt.NewRow());
dt.Rows[i]["items"] = new string[] { "pencil" + i, "sharpner" + i };
dt.Rows[i]["dateSold"] = "0" + i + "/0" + i + "/0" + i;
}
dataGridView1.DataSource = dt;
DataTable dt=newdatatable();
添加(“项目”,类型(字符串[]);
添加(“DateSeld”,typeof(string));
对于(int i=0;i<6;i++)
{
添加(dt.NewRow());
dt.Rows[i][“items”]=新字符串[]{“pencil”+i,“sharpner”+i};
dt.行[i][“DateSeld”]=“0”+i+“/0”+i+“/0”+i+”/0”+i;
}
dataGridView1.DataSource=dt;
列项是字符串数组。我想在网格的一列中显示这个数组。
但是,仅仅将datatable指定为datagridview的数据源并没有帮助。您使用的语法有点奇怪。存在允许您添加新行并同时设置值的重载 此外,不能让字符串数组作为单元格的字段。您可以创建一个自定义类,并将它们的列表绑定到DataGridView,而不是使用DataTable。通过这种方式,您可以拥有一个底层字段,它是一个字符串数组,然后拥有一个公共属性,可以根据需要对其进行格式化,然后在DataGridView中显示该属性 以下是如何实现这一点的示例:
Imports System.ComponentModel
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim sales As New BindingList(Of SaleTransaction)
For i As Integer = 1 To 6
sales.Add(New SaleTransaction(i))
Next
' None of this is necessary since the DGV will automatically read the public properties.. '
DataGridView1.AutoGenerateColumns = False
Dim itemsColumn As New DataGridViewTextBoxColumn
itemsColumn.HeaderText = "Items"
itemsColumn.ValueType = GetType(String)
itemsColumn.DataPropertyName = "Items"
DataGridView1.Columns.Add(itemsColumn)
Dim dateColumn As New DataGridViewTextBoxColumn
dateColumn.HeaderText = "Date Sold"
dateColumn.ValueType = GetType(String)
dateColumn.DataPropertyName = "DateSold"
DataGridView1.Columns.Add(dateColumn)
DataGridView1.DataSource = sales
End Sub
Public Class SaleTransaction
Private _items As List(Of String)
Public ReadOnly Property Items As String
Get
Return String.Join(", ", _items)
End Get
End Property
Public Property DateSold As Date
Public Sub New(ByVal itemNumber As Integer)
Me._items = New List(Of String) From {"Pencil" & itemNumber, "Sharpner" & itemNumber}
Me.DateSold = Date.Parse(String.Format("0{0}/0{0}/0{0}", itemNumber))
End Sub
End Class
End Class