DataGridView CellTemplate设置无法正常工作

时间:2012-08-20 19:30:16

标签: c# dynamic datagridview format celltemplate

我花了好几个小时为动态创建的列创建模板。 这是代码(它不是来自我的主项目,但我简化了代码来重现我的问题):

首先,我创建了一个包含Column设置的类:

public class ColumnBLO
{
    public string foreColor { get; set; }
    public string backColor { get; set; }
    public string Label { get; set; }
}

然后这是我的主窗口的代码:

        private Dictionary<string, DataGridView> dgViews;
    private List<ColumnBLO> columns;

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        tabControl1.TabPages.Clear();
        tabControl1.TabPages.Add(new TabPage("laUNe"));

        //Simulating Format settings
        columns = new List<ColumnBLO>();
        columns.Add(new ColumnBLO { backColor = "Black", foreColor = "Black", Label = "one" });
        columns.Add(new ColumnBLO { backColor = "Blue", foreColor = "Blue", Label = "two" });
        columns.Add(new ColumnBLO { backColor = "Red", foreColor = "Red", Label = "three" });

        //Creating datagridviews and populate with data
        dgViews = new Dictionary<string, DataGridView>();
        DataGridView dgv = new DataGridView();

        DataTable dt = new DataTable("laTable");
        dt.Columns.Add("one");
        dt.Columns.Add("two");
        dt.Columns.Add("three");
        dt.Rows.Add("un", "deux", "trois");
        dt.Rows.Add("un", "dos", "tres");
        dt.Rows.Add("uno", "due", "tre");
        dgv.DataSource = dt;

        dgViews.Add("one", dgv);

        tabControl1.TabPages[0].Controls.Add(dgv);

        //Formatting
        foreach (DataGridViewColumn dgvcol in dgViews["one"].Columns)
        {
            ColumnBLO colB = columns.Where(x => x.Label == dgvcol.HeaderText).First();
            DataGridViewCell dgvc = new DataGridViewTextBoxCell();
            dgvc.Style.BackColor = Color.FromName(colB.backColor);
            dgvc.Style.ForeColor = Color.FromName(colB.foreColor);
            dgvcol.CellTemplate = dgvc;
        }

    }
}

执行此代码时,不会显示格式,因为我单击标题列(对列进行排序),或者我自己调用Sort方法。

我尝试了很多东西,比如DGV上的Refresh(),Invalidate()和InvalidateColumns(),但没有任何工作......

如果有人可以帮助我; - )

1 个答案:

答案 0 :(得分:1)

foreach循环替换为以下内容......

...

//Formatting
foreach(DataGridViewColumn dgvcol in dgViews["one"].Columns)
{
     ColumnBLO colB = columns.First(x => x.Label == dgvcol.HeaderText);
     dgvcol.DefaultCellStyle.BackColor = Color.FromName(colB.BackColor);
     dgvcol.DefaultCellStyle.ForeColor = Color.FromName(colB.ForeColor);
}

...

如果您使用DefaultCellStyle代替CellStyle,则默认情况下,您的模板会呈现单元格...像Captain Obvious一样)))