c# - 当列表绑定(bind)到 datagridview 时修复列宽

Question

我有一个已绑定(bind)到数据 GridView 的列表。我希望第一列是固定大小。数据绑定(bind)到 dataGridView，我似乎无法找到访问单个列属性的方法。如果我尝试 myDatagridview.colums[0]，我会得到一个超出范围的索引，因为它表示列数为 0。

   private DataGridView setUpDataGrid(List<NVRlineVal> _NVRData)
    {
        //setup dataGridView
        DataGridView NVRDataGridView = new System.Windows.Forms.DataGridView();
        NVRDataGridView.ColumnHeadersHeightSizeMode =
            System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
        NVRDataGridView.Dock = System.Windows.Forms.DockStyle.Fill;
        NVRDataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;


        NVRDataGridView.Name = "NVRDataGridView" + nvrIndex;
        NVRDataGridView.RowHeadersWidthSizeMode =
            System.Windows.Forms.DataGridViewRowHeadersWidthSizeMode.AutoSizeToDisplayedHeaders;
        NVRDataGridView.TabIndex = 0;
        NVRDataGridView.DataSource = _NVRData;
        //var clmn = NVRDataGridView.Columns[0];

        return NVRDataGridView;
    }

关于如何仅对其中一列设置固定列宽，其余列将自动调整大小的任何想法？

编辑原始代码，以显示仍然有效的更清晰的版本

Answer 1

我做了类似的事情，但有格式化。

问题是设置数据源后网格没有绘制 - 您需要在 DataBindingComplete 事件中进行更改。

这里有一些片段....

(来自 https://minisqlquery.svn.codeplex.com/svn/trunk/MiniSqlQuery/QueryForm.cs)

-- 网格定义:

        this.gridResults1.AllowUserToAddRows = false;
        this.gridResults1.AllowUserToDeleteRows = false;
        this.gridResults1.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.ColumnHeader;
        this.gridResults1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
        this.gridResults1.Dock = System.Windows.Forms.DockStyle.Fill;
        this.gridResults1.Location = new System.Drawing.Point(3, 3);
        this.gridResults1.Name = "gridResults1";
        this.gridResults1.ReadOnly = true;
        this.gridResults1.Size = new System.Drawing.Size(1023, 242);
        this.gridResults1.TabIndex = 0;

-- 稍后订阅 DataBindingComplete 事件:

grid.DataBindingComplete += GridDataBindingComplete;

-- 处理事件(这里我正在修改格式，但你尝试更改宽度):

    private void GridDataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
    {
        DataGridView grid = sender as DataGridView;
        if (grid == null)
        {
            return;
        }
        DataTable dt = grid.DataSource as DataTable;
        if (dt == null)
        {
            return;
        }

        string nullText = _settings.NullText;
        string dateTimeFormat = _settings.DateTimeFormat;

        for (int i = 0; i < dt.Columns.Count; i++)
        {
            if (dt.Columns[i].DataType == typeof (DateTime))
            {
                DataGridViewCellStyle dateCellStyle = new DataGridViewCellStyle();
                dateCellStyle.NullValue = nullText;
                dateCellStyle.Format = dateTimeFormat;
                grid.Columns[i].DefaultCellStyle = dateCellStyle;
            }
        }
    }