using System;
using System.Collections;
using System.Data;
using System.Web.UI.WebControls;
namespace My.Utils {
/// <summary>
/// DataGrid工具集
/// </summary>
public class DataGridUtils {
public DataGridUtils() {
}
/// <summary>
/// 返回DataGrid的模板列的checkbox
/// </summary>
/// <param name="dgList">DataGrid</param>
/// <returns>选中记录的值</returns>
public static string[] getID (DataGrid dgList) {
return getID(dgList, "chkID");
}
/// <summary>
/// 返回DataGrid的模板列的checkbox
/// </summary>
/// <param name="dgList">DataGrid</param>
/// <param name="chkID">checkbox的服务器端ID</param>
/// <returns>选中记录的值</returns>
public static string[] getID (DataGrid dgList, string chkID) {
return getID(dgList, chkID, 0);
}
/// <summary>
/// 返回DataGrid的模板列的checkbox
/// </summary>
/// <param name="dgList">DataGrid</param>
/// <param name="chkID">checkbox的服务器端ID</param>
/// <param name="index">选中的值的索引列</param>
/// <returns>选中记录的值</returns>
public static string[] getID (DataGrid dgList, string chkID, int index) {
IList list = new ArrayList();
foreach(DataGridItem dgi in dgList.Items) {
//chkID是每个记录项的ID,记住，这是服务器端的ＩＤ，不是客户端的ＩＤ．
System.Web.UI.Control l_ct = dgi.Cells[0].FindControl(chkID);
if(l_ct != null) {
//下面语句是判断是否记录项的checkbox框初选种
if(((System.Web.UI.WebControls.CheckBox)l_ct).Checked) {
list.Add(dgi.Cells[index].Text);
}
}
}
if (list.Count == 0) {
return null;
} else {
string[] s = new string[list.Count];
list.CopyTo(s, 0);
return s;
}
}
/// <summary>
/// 设置datagrid的分页
/// </summary>
/// <param name="dg">datagrid</param>
/// <param name="dt">datatable</param>
public static void SetPage (DataGrid dg, DataTable dt) {
//最大页
int maxPage = (int)(dt.Rows.Count + dg.PageSize - 1) / dg.PageSize;
if (maxPage == 0) {
maxPage = 1;
}
if (dg.CurrentPageIndex >= maxPage){
dg.CurrentPageIndex = maxPage - 1;
}
//如果是DataGridTable,设置全部记录数,Polluxliu.Common.DataGridTable只是为了兼容CRM之前的项目
if (dg.GetType().FullName.Equals("Polluxliu.Common.DataGridTable")) {
//((Polluxliu.Common.DataGridTable)dg).MaxRecord = dt.Rows.Count;
} else if (dg.GetType().FullName.Equals("Polluxliu.UI.WebControls.DataGridTable")) {
((Polluxliu.UI.WebControls.DataGridTable)dg).MaxRecord = dt.Rows.Count;
}
dg.DataSource = dt;
}
}
}
