C# 列表视图方法不工作_C#_Listview_.net 4.5_Listviewitem

C# 列表视图方法不工作

c# listview

C# 列表视图方法不工作,c#,listview,.net-4.5,listviewitem,C#,Listview,.net 4.5,Listviewitem,我在ItemDataBound的帮助下使用lisview和绑定数据问题：当我点击一个标签时，它会显示与之相关的数据，但当我点击其他数据时，它会显示与第一项和第二项相关的数据，并一直持续到最后我尝试使用listviedo.Items.clear（）清除列表在中选择了dexchanging方法，但该方法无效帮我解决这个问题 aspx.cs代码 public string getvalue(int ID) { Tbl_Multiple_Video_Master obj = DB.Tbl_Mult

我在ItemDataBound的帮助下使用lisview和绑定数据

问题：当我点击一个标签时，它会显示与之相关的数据，但当我点击其他数据时，它会显示与第一项和第二项相关的数据，并一直持续到最后

我尝试使用

listviedo.Items.clear（）清除列表

在中选择了dexchanging方法，但该方法无效

帮我解决这个问题

aspx.cs代码

public string getvalue(int ID)
{
Tbl_Multiple_Video_Master obj = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
if (obj.IsUrl == false)
{
string Link = "<iframe id=\"paidVideo\" src=\"https://de122v0opjemw.cloudfront.net/utils/embedplayer.php?enablejsapi=1&video=" + obj.Name+"\" height=\"300\" width=\"500\"></iframe>";
return Link;
}
else
{
return "<iframe id=\"cartoonVideo\" width=\"560\" height=\"315\"  src=\"" + obj.Name + "\" frameborder=\"0\" allowfullscreen ></iframe>";
}
}
protected void listviedo_ItemCommand(object sender, ListViewCommandEventArgs e)
{
Literal lblvedio = (Literal)e.Item.FindControl("lblvedio");
if (e.CommandName == "Select")
{
int ID = Convert.ToInt32(e.CommandArgument);
Database.Tbl_Multiple_Video_Master obj = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
if (obj.IsUrl == false)
{
lblvedio.Visible = true;
string Link = "<iframe id=\"paidVideo\" src=\"https://de122v0opjemw.cloudfront.net/utils/embedplayer.php?enablejsapi=1&video=" + obj.Name + "\" height=\"300\" width=\"500\"></iframe>";
}
else
{
lblvedio.Visible = true;
string Link = "<iframe id=\"cartoonVideo\" width=\"560\" height=\"315\"  src=\"" + obj.Name + "\" frameborder=\"0\" allowfullscreen ></iframe>";
}
}
}
protected void listviedo_ItemDataBound(object sender, ListViewItemEventArgs e)
{
Label lblid = (Label)e.Item.FindControl("lblid");
LinkButton linkresuume = (LinkButton)e.Item.FindControl("linkresuume");
int ID = Convert.ToInt32(lblid.Text);
Database.Tbl_Multiple_Video_Master objcar = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
}
protected void listviedo_SelectedIndexChanged(object sender, EventArgs e)
{
if (listviedo.SelectedIndex > -1)
{
SelectedVideo.Text = "Selected Video is : " + listviedo.SelectedValue.ToString();
}
else
{
SelectedVideo.Text = "Please Select a Video" + listviedo.SelectedIndex.ToString();
}
}
protected void listviedo_SelectedIndexChanging(object sender, ListViewSelectEventArgs e)
{
listviedo.Items.Clear();
}

protected void listviedo_ItemCommand(object sender, ListViewCommandEventArgs e)
{
Literal lblvedio = (Literal)e.Item.FindControl("lblvedio");
if (e.CommandName == "Select")
{
int ID = Convert.ToInt32(e.CommandArgument);
Database.Tbl_Multiple_Video_Master obj = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
 if (obj.IsUrl == false)
 {
lblvedio.Visible = true;
 string Link = "<iframe id=\"paidVideo\" src=\"https://de122v0opjemw.cloudfront.net/utils/embedplayer.php?enablejsapi=1&video=" + obj.Name + "\" height=\"300\" width=\"500\"></iframe>";
}
else
{
lblvedio.Visible = true;
string Link = "<iframe id=\"cartoonVideo\" width=\"560\" height=\"315\"  src=\"" + obj.Name + "\" frameborder=\"0\" allowfullscreen ></iframe>";
}
}
}
protected void listviedo_ItemDataBound(object sender, ListViewItemEventArgs e)
{
Label lblid = (Label)e.Item.FindControl("lblid");
LinkButton linkresuume = (LinkButton)e.Item.FindControl("linkresuume");
int ID = Convert.ToInt32(lblid.Text);
Database.Tbl_Multiple_Video_Master objcar = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
}
protected void listviedo_SelectedIndexChanged(object sender, EventArgs e)
{
if (listviedo.SelectedIndex > -1)
{
SelectedVideo.Text = "Selected Video is : " + listviedo.SelectedValue.ToString();
}
else
{
SelectedVideo.Text = "Please Select a Video" + listviedo.SelectedIndex.ToString();
}
}
protected void listviedo_SelectedIndexChanging(object sender, ListViewSelectEventArgs e)
{
listviedo.Items.Clear();
}

<asp:ListView ID="listviedo" runat="server"
                                DataKeyNames="VideoName" 
                                OnItemCommand="listviedo_ItemCommand" 
                                OnItemDataBound="listviedo_ItemDataBound"
                                OnSelectedIndexChanged="listviedo_SelectedIndexChanged"
                                OnSelectedIndexChanging="listviedo_SelectedIndexChanging" >

                                <ItemTemplate>

                                    <div>
                                        <table>
                                            <tr style="border:solid;">
                                                <td style="border:solid;">
                                                    <asp:Literal ID="lblvedio"  runat="server" Visible="false" Text='<%#   getvalue(Convert.ToInt32(Eval("VID")))%>'></asp:Literal>
                                                </td>
                                            </tr>
                                            <tr>
                                                <td style="border:solid;">
                                                    <span>
                                                        <asp:LinkButton runat="server" ID="lnkname" CommandName="Select" CommandArgument='<%# Eval("VID") %>'>
                                                            <asp:Label ID="lblname" runat="server" Text='<%# Eval("VideoName")%>'></asp:Label>
                                                            <asp:Label ID="lblid" runat="server" Visible="false" Text='<%# Eval("VID")%>'></asp:Label>
                                                        </asp:LinkButton>
                                                    </span>
                                                </td>
                                            </tr>
                                        </table>
                                    </div>

                                </ItemTemplate>

                  </asp:ListView>

公共字符串getvalue（int-ID）
{
Tbl\u多个视频主机obj=DB.Tbl\u多个视频主机单（p=>p.VID==ID）；
if（obj.IsUrl==false）
{
字符串链接=”；
返回链接；
}
其他的
{
返回“”；
}
}
受保护的无效listviedo_ItemCommand（对象发送方，ListViewCommandEventArgs e）
{
Literal lblvedio=（Literal）e.Item.FindControl（“lblvedio”）；
如果（如CommandName==“选择”）
{
int ID=Convert.ToInt32（e.CommandArgument）；
Database.Tbl_Multiple_Video_Master obj=DB.Tbl_Multiple_Video_Master.Single（p=>p.VID==ID）；
if（obj.IsUrl==false）
{
lblvedio.Visible=真；
字符串链接=”；
}
其他的
{
lblvedio.Visible=真；
字符串链接=”；
}
}
}
受保护的无效listviedo_ItemDataBound（对象发送方，ListViewItemEventArgs e）
{
Label lblid=（Label）e.Item.FindControl（“lblid”）；
LinkButton LinkResume=（LinkButton）e.Item.FindControl（“LinkResume”）；
int ID=Convert.ToInt32（lblid.Text）；
Database.Tbl_Multiple_Video_Master objcar=DB.Tbl_Multiple_Video_Master.Single（p=>p.VID==ID）；
}
受保护的无效列表viedo\u SelectedIndexChanged（对象发送方，事件参数e）
{
如果（listviedo.SelectedIndex>-1）
{
SelectedVideo.Text=“所选视频为：”+listviedo.SelectedValue.ToString（）；
}
其他的
{
SelectedVideo.Text=“请选择一个视频”+listviedo.SelectedIndex.ToString（）；
}
}
受保护的无效listviedo\u SelectedIndexChanged（对象发送者，ListViewSelectEventArgs e）
{
listviedo.Items.Clear（）；
}
受保护的无效listviedo_ItemCommand（对象发送方，ListViewCommandEventArgs e）
{
Literal lblvedio=（Literal）e.Item.FindControl（“lblvedio”）；
如果（如CommandName==“选择”）
{
int ID=Convert.ToInt32（e.CommandArgument）；
Database.Tbl_Multiple_Video_Master obj=DB.Tbl_Multiple_Video_Master.Single（p=>p.VID==ID）；
if（obj.IsUrl==false）
{
lblvedio.Visible=真；
字符串链接=”；
}
其他的
{
lblvedio.Visible=真；
字符串链接=”；
}
}
}
受保护的无效listviedo_ItemDataBound（对象发送方，ListViewItemEventArgs e）
{
Label lblid=（Label）e.Item.FindControl（“lblid”）；
LinkButton LinkResume=（LinkButton）e.Item.FindControl（“LinkResume”）；
int ID=Convert.ToInt32（lblid.Text）；
Database.Tbl_Multiple_Video_Master objcar=DB.Tbl_Multiple_Video_Master.Single（p=>p.VID==ID）；
}
受保护的无效列表viedo\u SelectedIndexChanged（对象发送方，事件参数e）
{
如果（listviedo.SelectedIndex>-1）
{
SelectedVideo.Text=“所选视频为：”+listviedo.SelectedValue.ToString（）；
}
其他的
{
SelectedVideo.Text=“请选择一个视频”+listviedo.SelectedIndex.ToString（）；
}
}
受保护的无效listviedo\u SelectedIndexChanged（对象发送者，ListViewSelectEventArgs e）
{
listviedo.Items.Clear（）；
}

aspx代码

public string getvalue(int ID)
{
Tbl_Multiple_Video_Master obj = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
if (obj.IsUrl == false)
{
string Link = "<iframe id=\"paidVideo\" src=\"https://de122v0opjemw.cloudfront.net/utils/embedplayer.php?enablejsapi=1&video=" + obj.Name+"\" height=\"300\" width=\"500\"></iframe>";
return Link;
}
else
{
return "<iframe id=\"cartoonVideo\" width=\"560\" height=\"315\"  src=\"" + obj.Name + "\" frameborder=\"0\" allowfullscreen ></iframe>";
}
}
protected void listviedo_ItemCommand(object sender, ListViewCommandEventArgs e)
{
Literal lblvedio = (Literal)e.Item.FindControl("lblvedio");
if (e.CommandName == "Select")
{
int ID = Convert.ToInt32(e.CommandArgument);
Database.Tbl_Multiple_Video_Master obj = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
if (obj.IsUrl == false)
{
lblvedio.Visible = true;
string Link = "<iframe id=\"paidVideo\" src=\"https://de122v0opjemw.cloudfront.net/utils/embedplayer.php?enablejsapi=1&video=" + obj.Name + "\" height=\"300\" width=\"500\"></iframe>";
}
else
{
lblvedio.Visible = true;
string Link = "<iframe id=\"cartoonVideo\" width=\"560\" height=\"315\"  src=\"" + obj.Name + "\" frameborder=\"0\" allowfullscreen ></iframe>";
}
}
}
protected void listviedo_ItemDataBound(object sender, ListViewItemEventArgs e)
{
Label lblid = (Label)e.Item.FindControl("lblid");
LinkButton linkresuume = (LinkButton)e.Item.FindControl("linkresuume");
int ID = Convert.ToInt32(lblid.Text);
Database.Tbl_Multiple_Video_Master objcar = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
}
protected void listviedo_SelectedIndexChanged(object sender, EventArgs e)
{
if (listviedo.SelectedIndex > -1)
{
SelectedVideo.Text = "Selected Video is : " + listviedo.SelectedValue.ToString();
}
else
{
SelectedVideo.Text = "Please Select a Video" + listviedo.SelectedIndex.ToString();
}
}
protected void listviedo_SelectedIndexChanging(object sender, ListViewSelectEventArgs e)
{
listviedo.Items.Clear();
}

protected void listviedo_ItemCommand(object sender, ListViewCommandEventArgs e)
{
Literal lblvedio = (Literal)e.Item.FindControl("lblvedio");
if (e.CommandName == "Select")
{
int ID = Convert.ToInt32(e.CommandArgument);
Database.Tbl_Multiple_Video_Master obj = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
 if (obj.IsUrl == false)
 {
lblvedio.Visible = true;
 string Link = "<iframe id=\"paidVideo\" src=\"https://de122v0opjemw.cloudfront.net/utils/embedplayer.php?enablejsapi=1&video=" + obj.Name + "\" height=\"300\" width=\"500\"></iframe>";
}
else
{
lblvedio.Visible = true;
string Link = "<iframe id=\"cartoonVideo\" width=\"560\" height=\"315\"  src=\"" + obj.Name + "\" frameborder=\"0\" allowfullscreen ></iframe>";
}
}
}
protected void listviedo_ItemDataBound(object sender, ListViewItemEventArgs e)
{
Label lblid = (Label)e.Item.FindControl("lblid");
LinkButton linkresuume = (LinkButton)e.Item.FindControl("linkresuume");
int ID = Convert.ToInt32(lblid.Text);
Database.Tbl_Multiple_Video_Master objcar = DB.Tbl_Multiple_Video_Master.Single(p => p.VID == ID);
}
protected void listviedo_SelectedIndexChanged(object sender, EventArgs e)
{
if (listviedo.SelectedIndex > -1)
{
SelectedVideo.Text = "Selected Video is : " + listviedo.SelectedValue.ToString();
}
else
{
SelectedVideo.Text = "Please Select a Video" + listviedo.SelectedIndex.ToString();
}
}
protected void listviedo_SelectedIndexChanging(object sender, ListViewSelectEventArgs e)
{
listviedo.Items.Clear();
}

<asp:ListView ID="listviedo" runat="server"
                                DataKeyNames="VideoName" 
                                OnItemCommand="listviedo_ItemCommand" 
                                OnItemDataBound="listviedo_ItemDataBound"
                                OnSelectedIndexChanged="listviedo_SelectedIndexChanged"
                                OnSelectedIndexChanging="listviedo_SelectedIndexChanging" >

                                <ItemTemplate>

                                    <div>
                                        <table>
                                            <tr style="border:solid;">
                                                <td style="border:solid;">
                                                    <asp:Literal ID="lblvedio"  runat="server" Visible="false" Text='<%#   getvalue(Convert.ToInt32(Eval("VID")))%>'></asp:Literal>
                                                </td>
                                            </tr>
                                            <tr>
                                                <td style="border:solid;">
                                                    <span>
                                                        <asp:LinkButton runat="server" ID="lnkname" CommandName="Select" CommandArgument='<%# Eval("VID") %>'>
                                                            <asp:Label ID="lblname" runat="server" Text='<%# Eval("VideoName")%>'></asp:Label>
                                                            <asp:Label ID="lblid" runat="server" Visible="false" Text='<%# Eval("VID")%>'></asp:Label>
                                                        </asp:LinkButton>
                                                    </span>
                                                </td>
                                            </tr>
                                        </table>
                                    </div>

                                </ItemTemplate>

                  </asp:ListView>

试试这个

DataSource = null;
DataBind();

据

可能重复的错误代码在哪里？如果不显示损坏的代码，您将如何获得帮助？Post a未显示任何错误，但列表不清晰…：（@bxc00zzy我知道它是重复的，但我没有找到任何解决方案，这就是我发布它的原因。更新了我的帖子..这是我想做的-这是我想做的链接