C# DataGridVie利用model特性动态加载列

今天闲来无事看到ORm的特性映射sql语句。我就想到datagridview也可以用这个来动态添加列。这样就不用每次都去界面上点开界面填列了。

代码简漏希望有人看到了能指点一二。

先定义好Datagridview要加载的列。

public class Model
    {
        [ColumnAttribute(type = typeof(DataGridViewTextBoxColumn), DataPName = "d", HText = "sd")]
        public int Id { get; set; }
        public string Name { get; set; }

}

自定义特性

public class ColumnAttribute : Attribute
    {
        public Type type { get; set; }
        public string DataPName { get; set; }
        public string HText { get; set; }

}

定义填加列方法

public DataGridViewColumn[] DgvCArry()
        {
            Model model = new Model();
           
            PropertyInfo[] property = model.GetType().GetProperties();
            DataGridViewColumn[] dgvcArr = new DataGridViewColumn[property.Count() - 1];
            for (int i = 0; i < property.Count()-1; i++)
            {
                object[] pInfo = property[i].GetCustomAttributes(false);
                foreach (object objAtt in pInfo)
                {
                    if (objAtt.GetType() != typeof(ColumnAttribute))
                    {
                        continue;
                    }
                    ColumnAttribute columnAtt = objAtt as ColumnAttribute;
                    var DgvColumnType = columnAtt.type;
                    object obj = DgvColumnType.Assembly.CreateInstance(DgvColumnType.FullName);
                 
                    if (columnAtt.type == typeof(DataGridViewTextBoxColumn))
                    {
                        DataGridViewTextBoxColumn dgvtc = obj as DataGridViewTextBoxColumn;
                        dgvtc = new DataGridViewTextBoxColumn()
                        {
                            HeaderText = columnAtt.HText,
                            DataPropertyName = columnAtt.DataPName,
                            Name = columnAtt.DataPName
                        };
                        dgvcArr[i] = dgvtc;
                    }
                    else if (columnAtt.type == typeof(DataGridViewComboBoxColumn))
                    {
                        DataGridViewComboBoxColumn dgvcbc = obj as DataGridViewComboBoxColumn;
                        dgvcbc = new DataGridViewComboBoxColumn()
                        {
                            HeaderText = columnAtt.HText,
                            DataPropertyName = columnAtt.DataPName,
                            Name = columnAtt.DataPName
                        };
                        dgvcArr[i] = dgvcbc;
                    }
                    else if (columnAtt.type == typeof(DataGridViewCheckBoxColumn))
                    {
                        DataGridViewCheckBoxColumn dgvcbc = obj as DataGridViewCheckBoxColumn;
                        dgvcbc = new DataGridViewCheckBoxColumn()
                        {
                            HeaderText = columnAtt.HText,
                            DataPropertyName = columnAtt.DataPName,
                            Name = columnAtt.DataPName
                        };
                        dgvcArr[i] = dgvcbc;
                    }
                    else if (columnAtt.type == typeof(DataGridViewImageColumn))
                    {
                        DataGridViewImageColumn dgvcbc = obj as DataGridViewImageColumn;
                        dgvcbc = new DataGridViewImageColumn()
                        {
                            HeaderText = columnAtt.HText,
                            DataPropertyName = columnAtt.DataPName,
                            Name = columnAtt.DataPName
                        };
                        dgvcArr[i] = dgvcbc;
                    }
                    else if (columnAtt.type == typeof(DataGridViewLinkColumn))
                    {
                        DataGridViewLinkColumn dgvcbc = obj as DataGridViewLinkColumn;
                        dgvcbc = new DataGridViewLinkColumn()
                        {
                            HeaderText = columnAtt.HText,
                            DataPropertyName = columnAtt.DataPName,
                            Name = columnAtt.DataPName
                        };
                        dgvcArr[i] = dgvcbc;
                    }
                    else if (columnAtt.type == typeof(DataGridViewButtonColumn))
                    {
                        DataGridViewButtonColumn dgvcbc = obj as DataGridViewButtonColumn;
                        dgvcbc = new DataGridViewButtonColumn()
                        {
                            HeaderText = columnAtt.HText,
                            DataPropertyName = columnAtt.DataPName,
                            Name = columnAtt.DataPName
                        };
                        dgvcArr[i] = dgvcbc;
                    }

}
            }
            return dgvcArr;
        }

//界面初始化时调用

dataGridView1.Columns.AddRange(DgvCArry());

原文地址：https://www.cnblogs.com/LuoEast/p/8214109.html