• asp2.0 GridView OnRowDataBound event [转帖]


    GridView 和 OnRowDataBound事件显示图片, 没什么技术含量, 只是作为自己的一点总结:

    前台只需要简单的放一个GridView控件,我做的是一个显示fax历史的一个例子,只要用OnRowDataBound 现实图片,如果需要可以更改现实代码。

     1                                          <asp:GridView ID="faxHistoryList" runat="server" AutoGenerateColumns="False" AllowSorting="True" 
     2                                                 EnableViewState="true"OnRowCommand="faxHistoryList_RowCommand" OnRowDataBound="faxHistoryList_RowDataBound">
     4                                                 <Columns>
     5                                                     <asp:TemplateField>
     6                                                         <HeaderTemplate>
     7                                                             <asp:CheckBox ID="chkAll" runat="server" AutoPostBack="true" OnCheckedChanged="chkAll_CheckedChanged"></asp:CheckBox>
     8                                                          </HeaderTemplate>
     9                                                          <ItemTemplate>
    10                                                             <asp:CheckBox ID="chkFax" runat="server" ></asp:CheckBox>
    11                                                          </ItemTemplate>
    12                                                     </asp:TemplateField>
    13                                                     <asp:BoundField HeaderText="Id" DataField="Id" Visible="false"/>
    14                                                     <asp:BoundField HeaderText="Status" />
    15                                                     <asp:BoundField HeaderText="Number Faxed To" DataField="RecipientFaxNumber" />
    16                                                     <asp:BoundField HeaderText="Sender" DataField="SenderName" />
    17                                                     <asp:BoundField HeaderText="SenderTo" DataField="RecipientName" />
    18                                                     <asp:BoundField HeaderText="Patient" DataField="PatientName" />
    19                                                     <asp:BoundField HeaderText="SenderDate" DataField="CreateDateTime" />
    20                                                     <asp:TemplateField HeaderText="Preview">
    21                                                         <ItemTemplate>
    22                                                             <asp:LinkButton ID="Preview" runat="server" CommandName="Preview" Text = "Print/Preview"></asp:LinkButton>
    23                                                         </ItemTemplate>
    24                                                     </asp:TemplateField>
    25                                                 </Columns>
    26                                                 <EmptyDataTemplate>  
    27                                                   <asp:Localize runat="server" ID="locEmptyResultMessage" Text="There is no record"></asp:Localize>
    28                                                 </EmptyDataTemplate>
    29                                         </asp:GridView>


    后台的OnRowDataBound 如下:

     1 protected void faxHistoryList_RowDataBound(object sender, GridViewRowEventArgs e)
     2         {
     3             if (e.Row.RowType == DataControlRowType.DataRow)
     4             {
     5                 LinkButton lkbPreview = (LinkButton)e.Row.FindControl("Preview");//.Cells[(int)DisplayActionPlan.DisplayActionPlanColumn.deletebutton].Controls[0];
     6                 Fax item = (Fax)e.Row.DataItem;
     7                 lkbPreview.CommandArgument = item.Id.ToString();
     8 
     9                 InterventionContracts.Fax fax = (InterventionContracts.Fax)e.Row.DataItem;
    10                 System.Text.StringBuilder sb = new System.Text.StringBuilder();
    11                 switch (int.Parse(fax.Status))
    12                 {
    13                     case 0:
    14                         sb.Append("");
    15                         sb.Append(" Pending");
    16                         break;
    17                     case 1:
    18                         sb.Append("<img class=\"imgAlignTextBottom imgFormulary\" src=\"/images/arrow_outline.gif\" >");
    19                         sb.Append(" In-Progress");
    20                         break;
    21                     case 2:
    22                         sb.Append("<img class=\"imgAlignTextBottom imgFormulary\" src=\"/images/check-done.gif\" >");
    23                         sb.Append(" Sent");
    24                         break;
    25                     case 3:
    26                         sb.Append("<img class=\"imgAlignTextBottom imgFormulary\" src=\"/images/alert.gif\" >");
    27                         sb.Append(" Support Viewing");
    28                         break;
    29                 }
    30                 e.Row.Cells[2].Text = sb.ToString();
    31             }
    32         }


    我没有在前台绑定第三列的值,而在OnRowDataBound 事件里给他付值,这样可以比较容易实现在前台显示图片。另外通过(object)e.Row.DataItem可以比较容易实现绑定对象的cast

    转自:http://www.cnblogs.com/imyefei/archive/2007/09/27/907831.html

    前台页面:

    Code

    后代代码:

    Code


    如果山不向我走来,我就向山走去!
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  • 原文地址:https://www.cnblogs.com/liangwei389/p/1364177.html
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