本文介绍了在转发器C＃内的datalist中使用modalpopupextender的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个主转发器，里面有一个包含ImageButton的数据列表，点击该按钮，该图像应该在modelpopup中以相应的ID打开。
我尝试过：
--- aspx ----
< asp：DataList ID =dlimgrepVisible =falserunat =serverOnItemCommand =dlimgrep_ItemCommandOnSelectedIndexChanged =dlimgrep_SelectedIndexChangedRepeatDirection =HorizontalRepeatColumns =2RepeatLayout =Table>
< ItemTemplate>
< asp：Label ID =lbltlphotoidrunat =serverVisible =falseText ='<％＃Eval（timelinephoto_id）％>'>< / asp：Label>
< asp：ImageButton runat =serverStyle =margin：0px 5px 5px 0px; Width =150pxHeight =150pxCommandName =imgshowfullclass =img-responsiveID =imgbtnalt =userCommandArgument ='<％＃Eval（timelinephoto_id）％>'ImageUrl ='<％＃〜/ ImagePage.aspx？tlpostphtoid =+ System.Convert.ToString（Eval（timelinephoto_id））％>'/>
< / ItemTemplate>
< / asp：DataList>
< cc1：ModalPopupExtender ID =ModalPopupExtender3runat =serverTargetControlID =dlimgrepPopupControlID =Panelshow
BackgroundCssClass =modalBackgroundDropShadow =true>
< / cc1：ModalPopupExtender>
< asp：Panel ID =Panelshowclass =post-containerrunat =serverCssClass =modalPopupalign =centerStyle =display：none>
< asp：Image runat =serverStyle =margin：0px 5px 5px 0px;宽度=450px高度=500pxImageAlign =左ID =imgfull/>
< asp：Label ID =Label1Text =帮助我们了解发生了什么runat =server>< / asp：Label>< br>
< asp：Label ID =Label5Text =发生了什么事？ runat =server>< / asp：标签>
< br />
< asp：TextBox ID =TextBox2Visible =falserunat =serverTextMode =MultiLine>< / asp：TextBox>
< br />
< div class =fileupload fileupload-newdata-provide =fileuploadstyle =margin-bottom：10px;>
< asp：RadioButtonList ID =RadioButtonList1runat =serverRepeatLayout =TableCssClass =radio_genderRepeatDirection =Vertical>
< asp：ListItem Selected =TrueText =令人讨厌或不感兴趣值=0>< / asp：ListItem>
< asp：ListItem Text =我认为它不应该在BanjaraSocial上Value =1>< / asp：ListItem>
< asp：ListItem Text =它是垃圾邮件Value =2>< / asp：ListItem>
< / asp：RadioButtonList>
< / div>
< asp：Button ID =Button1OnClick =btnContinue_Clickrunat =serverText =Continue/>
< asp：Button ID =Button3runat =serverText =Close/>
< / asp：Panel>
和
--- cs ---
protected void dlimgrep_ItemCommand（object source，DataListCommandEventArgs e）
{
SqlConnection conn = new SqlConnection（c.connStr）;
conn.Open（）;
if（e.CommandName ==imgshowfull）
{
// Panel pan = e.Item.FindControl（Panelfull）作为Panel;
//pan.Visible = true;
Image img = e.Item.FindControl（imgfull）as Image;
int tlid = Convert.ToInt32（e.CommandArgument）;
SqlCommand cmdimgfull = new SqlCommand（从tbl_timelinephotos中选择timeline_photos，其中timelinephoto_id ='+ tlid +'，conn）;
SqlDataReader DRimg = cmdimgfull.ExecuteReader（）;
if（DRimg.Read（））
{
byte [] bytes =（byte []）（DRimg [timeline_photos]）;
base64String = Convert.ToBase64String（bytes，0，bytes.Length）;
img.ImageUrl =data：image / png; base64，+ base64String;
}
DRimg.Close（）;
}
}
解决方案
i have one main repeater and inside that i have one datalist which contains ImageButton ,on clicking on that button that image should get open in modelpopup with respective id.
What I have tried:
---aspx----
<asp:DataList ID="dlimgrep" Visible="false" runat="server" OnItemCommand="dlimgrep_ItemCommand" OnSelectedIndexChanged="dlimgrep_SelectedIndexChanged" RepeatDirection="Horizontal" RepeatColumns="2" RepeatLayout="Table">
<ItemTemplate>
<asp:Label ID="lbltlphotoid" runat="server" Visible="false" Text='<%#Eval("timelinephoto_id") %>'></asp:Label>
<asp:ImageButton runat="server" Style="margin: 0px 5px 5px 0px;" Width="150px" Height="150px" CommandName="imgshowfull" class="img-responsive" ID="imgbtn" alt="user" CommandArgument='<%#Eval("timelinephoto_id") %>' ImageUrl='<%# "~/ImagePage.aspx?tlpostphtoid=" + System.Convert.ToString(Eval("timelinephoto_id")) %>' />
</ItemTemplate>
</asp:DataList>
<cc1:ModalPopupExtender ID="ModalPopupExtender3" runat="server" TargetControlID="dlimgrep" PopupControlID="Panelshow"
BackgroundCssClass="modalBackground" DropShadow="true">
</cc1:ModalPopupExtender>
<asp:Panel ID="Panelshow" class="post-container" runat="server" CssClass="modalPopup" align="center" Style="display: none">
<asp:Image runat="server" Style="margin: 0px 5px 5px 0px;" Width="450px" Height="500px" ImageAlign="Left" ID="imgfull" />
<asp:Label ID="Label1" Text="Help Us Understand What's Happening" runat="server"></asp:Label><br>
<asp:Label ID="Label5" Text="What's going on?" runat="server"></asp:Label>
<br />
<asp:TextBox ID="TextBox2" Visible="false" runat="server" TextMode="MultiLine"></asp:TextBox>
<br />
<div class="fileupload fileupload-new" data-provides="fileupload" style="margin-bottom: 10px;">
<asp:RadioButtonList ID="RadioButtonList1" runat="server" RepeatLayout="Table" CssClass="radio_gender" RepeatDirection="Vertical">
<asp:ListItem Selected="True" Text="It's annoying or not interesting" Value="0"></asp:ListItem>
<asp:ListItem Text="I think it shouldn't be on BanjaraSocial" Value="1"></asp:ListItem>
<asp:ListItem Text="It's spam" Value="2"></asp:ListItem>
</asp:RadioButtonList>
</div>
<asp:Button ID="Button1" OnClick="btnContinue_Click" runat="server" Text="Continue" />
<asp:Button ID="Button3" runat="server" Text="Close" />
</asp:Panel>
and
---cs---
protected void dlimgrep_ItemCommand(object source, DataListCommandEventArgs e)
{
SqlConnection conn = new SqlConnection(c.connStr);
conn.Open();
if (e.CommandName == "imgshowfull")
{
//Panel pan = e.Item.FindControl("Panelfull") as Panel;
//pan.Visible = true;
Image img = e.Item.FindControl("imgfull") as Image;
int tlid = Convert.ToInt32(e.CommandArgument);
SqlCommand cmdimgfull = new SqlCommand("select timeline_photos from tbl_timelinephotos where timelinephoto_id = '" + tlid + "'", conn);
SqlDataReader DRimg = cmdimgfull.ExecuteReader();
if (DRimg.Read())
{
byte[] bytes = (byte[])(DRimg["timeline_photos"]);
base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
img.ImageUrl = "data:image/png;base64," + base64String;
}
DRimg.Close();
}
}
解决方案
这篇关于在转发器C＃内的datalist中使用modalpopupextender的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！