如何将循环图标加载到字段DatagridView？ [英] How to load at loop icon to field DatagridView?

问题描述

您好！

我从实体查询格式化DatagridView。

现在我有代码：

Hello!
I format DatagridView from Entity query.
Now I have code:

List<Cards.Model.Cards> list = new List<Cards.Model.Cards>();
            DateTime timeNow = DateTime.Now; 

            foreach (var obj in BLL.Cards.GetListCards())
            {

                Cards.Model.Cards qwe = new Cards.Model.Cards();
                DateTime timeEnd = BLL.Cards.UnixTimeStampToDateTime(obj.EndDay);

                SetStatusIcon (timeEnd < timeNow ? 1 : 0);

                //qwe.Status = timeEnd < timeNow ? 1 : 0;
                qwe.IdUser = obj.IdUser;  //this is column name
                qwe.Mobile = obj.Mobile;
                qwe.Username = obj.Username;
                qwe.StartDayD = BLL.Cards.UnixTimeStampToDateTime(obj.StartDay);
                qwe.EndDayD = timeEnd;
                list.Add(qwe);
            }
                
                ListCards.DataSource = list;


And function, that change image path and add to Grid image:

 private void SetStatusIcon(int status)
        {

            DataGridViewImageColumn img = new DataGridViewImageColumn();
            string path = status == 1 ? "Active.png" : "NoActive.png";
            string imagepath = "D:\\""+ path;
            Image image = Image.FromFile(imagepath);
            img.Image = image;
            ListCards.Columns.Add(img); //want here to add field with icon for every row of datagridview
            img.HeaderText = "Image";
            img.Name = "img";

        }

我的目标是：设置一列Image并为datagridview的每一行添加一个具有任何状态的字段图像（Active.png，NoActive.png）



我实际上花了很多时间，所以我请求你帮忙。

谢谢！







我试过了在我填满网格之后也会这样做：

My goal is: Set one column Image and for every row of datagridview add one field image with any status (Active.png, NoActive.png)

I actually spent a lot of time so i requested you for help.
Thank you!



I tried also make such after i get filled grid:

foreach (DataGridViewRow row in ListCards.Rows)
                {
                    DataGridViewImageCell cell = row.Cells[1] as DataGridViewImageCell;
                    cell.Value = (System.Drawing.Image)Properties.Resources.Active;  //Here return error: Object reference not set to an instance of an object.
                }

另一种我找不到的方法

Another way i did not find

推荐答案

示例：

Hi,

Example:

private void createGraphicsColumn()
{
    Icon treeIcon = new Icon(this.GetType(), "tree.ico");
    DataGridViewImageColumn iconColumn = new DataGridViewImageColumn();
    iconColumn.Image = treeIcon.ToBitmap();
    iconColumn.Name = "Tree";
    iconColumn.HeaderText = "Nice tree";
    dataGridView1.Columns.Insert(2, iconColumn);
}

检查这个^ 链接了解更多详情。



干杯，

JAFC

Check this^ link for more details.

Cheers,
JAFC

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