detailsview 在编辑的时候使用dropdownlist

publicpartialclass_Default:System.Web.UI.Page
{
protectedvoidPage_Load(objectsender,EventArgse)
{
if(!this.IsPostBack)
{
bindData();
}
}
publicvoidbindData()
{
stringstrSql=ConfigurationManager.AppSettings["strcon"].ToString();
SqlConnectioncon=newSqlConnection(strSql);
SqlCommandcmd=newSqlCommand("select*fromtestwhereid=2",con);
con.Open();
SqlDataReaderread=cmd.ExecuteReader();
DetailsView1.DataSource=read;
DetailsView1.DataBind();
DropDownListdrpsex=DetailsView1.FindControl("drpsex")asDropDownList;
Labellblsex=DetailsView1.FindControl("lblsex")asLabel;
//SqlDataReaderreader=bindToDrop();
//drpsex.DataSource=reader;
//drpsex.DataBind();
//drpsex.SelectedIndex=drpsex.Items.IndexOf(drpsex.Items.FindByText(lblsex.Text.Trim()));//lblsex.Text.Trim();

}
protectedvoidDetailsView1_ItemCommand(objectsender,DetailsViewCommandEventArgse)
{
//if(e.CommandName.Equals("Edit"))//实现一
//{
//DetailsView1.ChangeMode(DetailsViewMode.Edit);

//}

//bindData();
}
protectedvoidDetailsView1_ModeChanging(objectsender,DetailsViewModeEventArgse)
{
//DetailsView1.ChangeMode(DetailsViewMode.Edit);
//bindData();
//实现二
if(DetailsView1.CurrentMode==DetailsViewMode.ReadOnly)
{
DetailsView1.ChangeMode(DetailsViewMode.Edit);
}
elseif(DetailsView1.CurrentMode==DetailsViewMode.Edit)
{
DetailsView1.ChangeMode(DetailsViewMode.ReadOnly);
}
bindData();

}

publicSqlDataReaderbindToDrop()
{
stringstrSql=ConfigurationManager.AppSettings["strcon"].ToString();
SqlConnectioncon=newSqlConnection(strSql);
SqlCommandcmd=newSqlCommand("selectdistinctsexfromtest",con);
con.Open();
SqlDataReaderread=cmd.ExecuteReader();
returnread;
}

protectedvoidDetailsView1_ModeChanged(objectsender,EventArgse)
{

}
protectedvoidDetailsView1_DataBound(objectsender,EventArgse)
{

}
protectedvoidDetailsView1_PreRender(objectsender,EventArgse)
{
//实现dropdownlist在编辑的时候显示一样的值
if(this.IsPostBack)
{
if(DetailsView1.CurrentMode==DetailsViewMode.Edit)
{
DropDownListdrpsex=DetailsView1.FindControl("drpsex")asDropDownList;
Labellblsex=DetailsView1.FindControl("lblsex")asLabel;
drpsex.DataSource=bindToDrop();
drpsex.DataBind();
drpsex.SelectedValue=lblsex.Text.Trim();
}
}
}
}

==============================================================================================
前台
<formid="form1"runat="server">
<div>
<asp:DetailsViewID="DetailsView1"runat="server"AutoGenerateRows="False"Height="50px"Width="125px"OnItemCommand="DetailsView1_ItemCommand"OnModeChanging="DetailsView1_ModeChanging"OnModeChanged="DetailsView1_ModeChanged"OnDataBound="DetailsView1_DataBound"OnPreRender="DetailsView1_PreRender">
<Fields>
<asp:TemplateFieldHeaderText="Name">
<EditItemTemplate>
<asp:TextBoxID="TextBox1"runat="server"Text='<%#Bind("name")%>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBoxID="TextBox1"runat="server"Text='<%#Bind("name")%>'></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:LabelID="Label1"runat="server"Text='<%#Bind("name")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateFieldHeaderText="Sex">
<EditItemTemplate>
<asp:DropDownListID="drpsex"runat="server"DataSource="<%#bindToDrop()%>"DataTextField="sex"></asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBoxID="TextBox2"runat="server"Text='<%#Bind("sex")%>'></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:LabelID="Label2"runat="server"Text='<%#Bind("sex")%>'></asp:Label>

</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:LabelID="lblsex"runat="server"Text='<%#Bind("sex")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateFieldShowHeader="False">
<EditItemTemplate>
<asp:ButtonID="Button1"runat="server"CausesValidation="True"CommandName="Update"
Text="更新"/>&nbsp;<asp:ButtonID="Button2"runat="server"CausesValidation="False"
CommandName="Cancel"Text="取消"/>
</EditItemTemplate>
<ItemTemplate>
<asp:ButtonID="Button1"runat="server"CausesValidation="False"CommandName="Edit"
Text="编辑"/>
</ItemTemplate>
</asp:TemplateField>
</Fields>
</asp:DetailsView>

</div>
</form>