GridView模板列，如何在后台代码中添加客户端事件，执行sql函数，格式化数据
1、在GridView中经常会有这样的操作，比如要删除一条记录，点击一个个ImageButton 或者 LinkButton 首先用脚本确认是否删除，然后确定之后，再执行这个ImageButton或者LinkButton的OnClick事件，执行删除，具体的操作如下：
<asp:GridView ID="gvClassInfoList" runat="server" Width="100%" AutoGenerateColumns="False" DataKeyNames="ClassID" >
<RowStyle CssClass="dataTable1Row" />
<Columns>
<asp:TemplateField HeaderText="班级ID" Visible="False">//这一列可以同样是BoundField列，主键列
<ItemTemplate>
<asp:Label ID="lblClassId" runat="server" Text='<%# Eval("ClassID") %>' Visible="false" ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="CLASSNO" HeaderText="班级代码" SortExpression="IS_REPLY">
<ItemStyle Wrap="True" ForeColor="Red" HorizontalAlign="Center" Width="5%" />
<HeaderStyle Wrap="False" />
</asp:BoundField>
<asp:BoundField DataField="PROGRAMNAME" HeaderText="培训项目" SortExpression="PROGRAMNAME" />
<asp:BoundField DataField="CLASSTYPE" HeaderText="类别 " SortExpression="CLASSTYPE"></asp:BoundField>
<asp:BoundField DataField="TRAINEENO" HeaderText="总人数" SortExpression="TRAINEENO"></asp:BoundField>
<asp:BoundField DataField="STARTDATE" HeaderText="理论开始时间" SortExpression="STARTDATE" HtmlEncode=false DataFormatString="{0:yyyy-MM-dd}"></asp:BoundField>
<asp:BoundField DataField="ENDDATE" HeaderText="理论结束时间" SortExpression="ENDDATE" HtmlEncode=false DataFormatString="{0:yyyy-MM-dd}"></asp:BoundField>//格式化数据
<asp:BoundField DataField="DAYS" HeaderText="时长" SortExpression="DAYS"></asp:BoundField>
<asp:BoundField DataField="FROMNO" HeaderText="延续自" SortExpression="FROMNO"></asp:BoundField>
<asp:BoundField DataField="ATTENDNO" HeaderText="延续至" SortExpression="ATTENDNO"></asp:BoundField>
<asp:BoundField DataField="WITHNO" HeaderText="合班" SortExpression="WITHNO"></asp:BoundField>
<asp:BoundField DataField="ClassRoom" HeaderText="教室号" SortExpression="ClassRoom"></asp:BoundField>
<asp:BoundField DataField="Receptionist" HeaderText="接待员" SortExpression="Receptionist"></asp:BoundField>
<asp:BoundField DataField="Remark" HeaderText="备注" SortExpression="Remark"></asp:BoundField>
<asp:TemplateField HeaderText="团组资料">
<ItemTemplate>
<div>
<asp:Label ID="lblOrgName" runat="server" Text='<%#Eval("OrgNameAndTraineeNo") %>'></asp:Label>//由sql函数生成的字段
</div>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="管理">
<ItemTemplate>
<div>
<nobr>
<asp:LinkButton ID="lkBtnModify" runat="server" >修改</asp:LinkButton>
<asp:LinkButton ID="lkBtnReset" runat="server" OnClientClick='javascritp:return confirm("确定要修改此班级状态吗?");' onclick="lkBtnReset_Click" >取消</asp:LinkButton>//执行客户端事件与onclick事件
<asp:LinkButton ID="lkBtnLookOrg" runat="server" >查看团组</asp:LinkButton>
<asp:LinkButton ID="lkBtnAddOrg" runat="server" >添加团组</asp:LinkButton>
</nobr>
</div>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<HeaderStyle BorderStyle="None" CssClass="dataTable1HeaderCellWithSorting" BorderWidth="5px" />
<AlternatingRowStyle BorderStyle="None" CssClass="dataTable1Row" />
</asp:GridView>
//2、以下为模板列中lkBtnReset的onclick事件
/// <summary>
/// 将班级信息的ColName1即显示状态修改为0，不显示
/// </summary>
protected void lkBtnReset_Click(object sender, EventArgs e)
{
GridViewRow gvr = (sender as LinkButton).NamingContainer as GridViewRow;
string key = gvClassInfoList.DataKeys[gvr.RowIndex].Value.ToString();//获取gridview的主键
IClass bll = BLLAccess.CreateClass();
ClassBasic obj = bll.GetModelByClassID(key);
obj.ColName1 = "0";
string classId = bll.UpdateClass(obj);
if (!string.IsNullOrEmpty(classId))
{
AlertMessage("修改成功！");
}
else
{
AlertMessage("修改失败!");
}
}
//3、在后台代码中添加客户端事件
/// <summary>
/// 对GridView中每一行的linkButton添加客户端的onclick事件，打开一个查看团组的模态窗口
/// </summary>
/// <param name="ds">绑定到GridView中的数据源</param>
private void AddEvent(DataSet ds)
{
try
{
if (ds != null && ds.Tables[0].Rows.Count > 0)
{
foreach (GridViewRow gr in gvClassInfoList.Rows)
{
LinkButton lkBtn = (LinkButton)gr.Cells[15].FindControl("lkBtnLookOrg");
LinkButton lkBtnAddOrg = (LinkButton)gr.Cells[15].FindControl("lkBtnAddOrg");
LinkButton lkBtnModify = (LinkButton)gr.Cells[15].FindControl("lkBtnModify");
//string str = ((Label)gr.Cells[0].FindControl("lblText")).Text;
string classid = ((Label)gr.Cells[0].FindControl("lblClassId")).Text;
//下面为添加客户端的脚本事件，打开对话框。函数在javascript中
lkBtn.Attributes.Add("onclick", "return UniversalOpenWindow(760,550,'ScanOrgInfo.aspx?classid=" + classid + "');");
lkBtnAddOrg.Attributes.Add("onclick", "return UniversalOpenWindow(760,550,'NewClassOrganization.aspx?classid=" + classid + "');");
lkBtnModify.Attributes.Add("onclick", "return UniversalOpenWindow(760,550,'NewClass.aspx?classid=" + classid + "');");
}
}
}
catch (Exception e)
{
throw e;
}
}
//分页的sql与执行sql函数,GetOrgNameAndTraineeNos函数在SQL SERVER系列中
/// <summary>
/// 获取分页的sql语句
/// </summary>
/// <param name="startIndex">起始记录下标,默认从0开始</param>
/// <param name="endindex">本页记录的最后一个下标</param>
/// <param name="sqlWhere">查询条件</param>
/// <returns>返回条件查询字符串</returns>
private string GetPagingString(int startIndex, int endIndex, string sqlWhere)
{
string sqlWhere1 = " WHERE 1=1 And c.ColName1='1' ";//ColName=1即为可显示的数据
string strSql = "begin "
+ " WITH list AS ( "
+ " SELECT ROW_NUMBER() OVER (ORDER BY c.ClassNo DESC)AS Row, c.ClassID,c.CLASSNO,c.ProgramName,c.ClassType,"
+ " c.TraineeNo,c.StartDate,c.EndDate,c.Days,c.FromNo,c.AttendNo,c.WithNo,c.ClassRoom,c.Receptionist,c.Remark,"
+ " dbo.GetOrgNameAndTraineeNos(c.ClassID) as OrgNameAndTraineeNo "//执行sql函数，拼接该班级ID下的所以团组及人数
+ " from ClassBasic c ";
if (!string.IsNullOrEmpty(sqlWhere))
{
sqlWhere1 += sqlWhere;
strSql += sqlWhere1 + " )"
+ " SELECT * FROM list WHERE Row between " + startIndex + " and " + endIndex + ""
+ " end";
}
else
{
strSql += " )"
+ " SELECT * FROM list WHERE Row between " + startIndex + " and " + endIndex + ""
+ " end";
}
return strSql;
}
