GridView的操作<2>：事件冲突

GridView在Edit状态的行是Template中的EditItemtemplat中的控件，

某些时候，需要控制这些行，避免对他们进行操作

情况一：如不加!=EditIndex的控制，则RowDataBound将寻找空间HyperLink，而在Edit状态，控件无效

<asp:TemplateField HeaderText="功能组名称">
<ItemTemplate>
<asp:HyperLink ID="Group_Name_Lab" runat="server" 
Text='<%#Eval("Function_GroupName") %>'></asp:HyperLink>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<EditItemTemplate>
<asp:TextBox ID="Group_Name_Box" runat="server" 
Text='<%#Eval("Function_GroupName") %>'></asp:TextBox>
</EditItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>

 处理

 1protected void FunctionGroupGridView_RowDataBound(
 2object sender, GridViewRowEventArgs e)
 3{
 4if (e.Row.RowIndex != -1 &&
 5 e.Row.RowType == DataControlRowType.DataRow
 6&&e.Row.RowIndex!=this.FunctionGroupGridView.EditIndex)
 7{
 8((HyperLink)(e.Row.FindControl("Group_Name_Lab"))).NavigateUrl
 9 =
"~/AdminManage/w_Function_QueryGroup.aspx?GID=" 
+ ((Label)(e.Row.FindControl("Group_ID_Lab"))).Text;
}
}

情况二：如不在EditItemtemplate中写一个相同的HyperLink，则RowDataBound失败，因为无法找到控件

 1<asp:TemplateField HeaderText="操作">
 2<EditItemTemplate>
 3<asp:HyperLink ID="Img_Link" runat="server" Target="_blank" 
 4Text="察看图片">
 5</asp:HyperLink>
 6|
 7<asp:LinkButton ID="LinkButton1" runat="server" 
 8CausesValidation="True" CommandName="Update"
 9Text="更新">
</asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" 
CausesValidation="False" CommandName="Cancel"
Text="取消">
</asp:LinkButton>
</EditItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemTemplate>
<asp:HyperLink ID="Img_Link" runat="server" Target="_blank" 
Text="察看图片">
</asp:HyperLink>
|
<asp:LinkButton ID="LinkButton1" runat="server" 
CausesValidation="False" CommandName="Edit"
Text="编辑"></asp:LinkButton>
|
<asp:LinkButton ID="LinkButton2" runat="server" 
CausesValidation="False" CommandName="Delete"
Text="删除" OnClientClick="ConfirmDel()">
</asp:LinkButton>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>

 处理：

protected void ImgGridView_RowDataBound(
object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex != -1 && e.Row.RowType == 
DataControlRowType.DataRow)
{
string A = ((Label)(e.Row.FindControl("Time_Lab"))).Text;
string B = ((Label)(e.Row.FindControl("Name_Lab"))).Text;
HyperLink HL = (HyperLink)(e.Row.FindControl("Img_Link"));
HL.NavigateUrl =
Config.getOtherPhotoFolder(Convert.ToDateTime(A)) + B;
}
}