没找到列

[lude8880]

            foreach (DataRow row in projectTb.Rows)
            {
                string projectName = (string)row["ProjectName"];
                int projectID = (int)(row["ProjectID"]);


                string hours = Plan_TaskExecuteLogic.getTotalHoursByUserIDAndProjectID(underling.UserID, projectID).ToString();

                DataRow dr = dt.NewRow();
                dr["项目"] = projectName;
                dr["工时"] = hours;

                dt.Rows.Add(dr);

            }
            GridView gv = new GridView();
            gv.CssClass = "twoColTab";
            setGridViewSkin(ref gv);
            gv.DataSource = dt;
            gv.HeaderStyle.CssClass = "gridViewHead";
            gv.DataBind();
            gv.Columns[0].ItemStyle.HorizontalAlign = HorizontalAlign.Right;  //这句报错 索引超出范围。必须为非负值并小于集合大小。参数名: index

[ganlianter]

dt new过了没？

[dbacv232kwe]

服务器端DataSet或者DateTbale之流绑定给GridView之后,GridView只会按照字段的顺序显示所有列,此时无论GridView的AutoGenerateColumns属性启用还是不启用,Columns对象的Count将为0,因为GridView还是会自动生成的列,而自动生成列是不会放入到Columns集合中去的.
解决办法：写个动态添加Columns函数

[unicode]

需要自己添加column

BoundField column = null;
column = new BoundField();
column.DataField = "项目";
gv.Columns.Add(column);

column = new BoundField();
column.DataField = "工时";
gv.Columns.Add(column);

[lude8880]

怎么变成四列啦！！！