Question

我试图在datagridview中显示2d数组。我通过Windows窗体将数据生成到2d数组，然后尝试将数据显示到数据网格视图中，但我在线上收到错误的 row.CreateCells（this.dataGridView1）; 提供的行已经属于DataGridView控件。 不确定我做错了什么，如果有人请我把我放在正确的方向代码如下

   iArray = new String[2, 10];
            iArray = custDetails.pCustomDetails();


            int height = iArray.GetLength(0);
            int width = iArray.GetLength(1);
        MessageBox.Show(height.ToString());
        MessageBox.Show(width.ToString());

        this.dataGridView1.ColumnCount = width;

            for (int r = 0; r < height; r++)
            {

            row.CreateCells(this.dataGridView1);

                for (int c = 0; c < width; c++)
                {
                row.Cells[c].Value = iArray[r, c];

                }

                this.dataGridView1.Rows.Add(row);
            }

Answer 1

这里唯一的问题是你试图在循环中反复添加相同实例的行。

所以这个小修补程序会让你的代码工作

 for (int r = 0; r < height; r++)
        {

         //Fix : create a new instance of row every time
          DataGridViewRow row = new DataGridViewRow();


        row.CreateCells(this.dataGridView1);

            for (int c = 0; c < width; c++)
            {
            row.Cells[c].Value = iArray[r, c];

            }

            this.dataGridView1.Rows.Add(row);
        }

Answer 2

我认为这个答案是最好的答案，只需将其重写为C＃：

'at first add columns to the dataGridView before insert rows in it
'y = number of the columns which should equal yourArray.getlength(0) - 1 
'you can change (col) to any type of column you need

        For i = 0 To y
            Dim col As New DataGridViewTextBoxColumn
            col.DataPropertyName = "PropertyName" & i.ToString
            col.HeaderText = i.ToString
            col.Name = "colWhateverName" & i.ToString
            DataGridView1.Columns.Add(col)
        Next

'now you insert the rows
'exampleRow ={yourArray(0,0), yourArray(0,1), ..... ,yourArray(0,y)}
'x = number of rows

        For i = 0 To x
            Dim aarray As New List(Of String)
            For ii = 0 To y
                aarray.Add(yourArray(i, ii).ToString)
            Next
            DataGridView1.Rows.Add(aarray.ToArray)
        Next

我做了这样一个应用程序，您可以在这里检查它： https://github.com/ammardab3an/Array-Rotate-90

c＃2d数组到datagrid视图

2 个答案: