当列表绑定到datagridview时修复列宽 [英] fix a columns width when a list is bound to a datagridview

问题描述

我有，我绑定到一个DataGridView的列表。我想的第一列是一个固定的大小。该数据被绑定到DataGridView和我似乎无法找到一种方法来访问个人colums属性。如果我尝试myDatagridview.colums [0]我得到一个索引出界，因为它说的列数为0。

I have a list that I have bound to a datagridview. I want the first column to be a fixed size. The data is bound to the dataGridView and I can't seem to find a way to access an individual colums properties. if I try myDatagridview.colums[0] I get an index out of bounds, since it says the columns count is 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;
    }

这是如何有一个固定的列宽只有这些列之一任何想法，其余的将自动调整大小？

Any ideas on how to have a fixed column width for only one of these columns, the rest will autosize?

编辑原代码，展现出更加清理的版本，仍然有效。

edited original code, to show a more cleaned up version that still works

推荐答案

我做类似的但格式的东西。

I do something similar but with formatting.

的问题是，网格不是数据源的设置后绘制的 - 你需要做的，你在 DataBindingComplete 事件而改变。

The problem is that the grid is not drawn after the setting of the data source - you need to do you changes in the DataBindingComplete event.

下面是一些片断......

Here are some snippets....

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

- 格DEF：

        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;

- 后来订阅 DataBindingComplete 事件

grid.DataBindingComplete += GridDataBindingComplete;

- 处理事件（我在这里修改的格式，但你尝试改变宽度）：

-- handle the event (here I am modifying the format but you try changing the width):

    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;
            }
        }
    }

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