如何在Asp.net中通过命令参数传递多个值

本文关键字：参数传递 命令 Asp net | 更新日期: 2023-09-27 18:28:44

我有一个具有CommandArgument属性的ImageButton，该属性具有多个Eval值。当我单击其中一个时，我想将值传递给ImageButton2_click事件，但它不起作用，因为Command参数为null。

<div class="sag-re-icerik" id="icerik2" runat="server">Lorem ipsum dolor sit amet, consectetur commodo et convallis et, auctor viverra metus. Aenean pharetra, arcu nec viverra mollis, turpis neque feugiat massa, non dapibus neque nunc ac orci. </div>
    <div class="oy-verme">
        <div class="yildiz"><asp:ImageButton ID="ImageButton4" runat="server" Height="19px" ImageUrl="~/images/yildiz.png" onclick="ImageButton2_Click" Width="20px"  style="position: relative; top: 13px; left:6px; float:left;  "    commandArgument='<%#Eval("sdasdas") + ","+Eval("fafasfa") %>' /></div>
        <div class="yildiz"><asp:ImageButton ID="ImageButton5" runat="server" Height="19px" ImageUrl="~/images/yildiz.png" onclick="ImageButton5_Click" Width="20px"  style="position: relative; top: 13px; left:8px; float:left;" commandArgument='<%#Eval("row[0].ToString()") + ","+Eval("row[1].ToString()") %>'/></div>
        <div class="yildiz"><asp:ImageButton ID="ImageButton6" runat="server" Height="19px" ImageUrl="~/images/yildiz.png" onclick="ImageButton2_Click" Width="20px"  style="position: relative; top: 13px; left:10px ; float:left; " commandArgument='<%#Eval("row[0].ToString()") + ","+Eval("row[1].ToString()") %>' /></div>
        <div class="yildiz"><asp:ImageButton ID="ImageButton3" runat="server" Height="19px"  ImageUrl="~/images/yildiz.png" onclick="ImageButton2_Click" Width="20px" style="position: relative; top:13px; left:12px ; float:left;" commandArgument='<%#Eval("row[0].ToString()") + ","+Eval("row[1].ToString()") %>' /></div>
        <div class="yildiz"> <asp:ImageButton ID="ImageButton2" runat="server" Height="19px" ImageUrl="~/images/yildiz.png" onclick="ImageButton2_Click" Width="20px"  style="position: relative; top: 13px; left: 14px; float:left;" commandArgument='<%#Eval("row[0].ToString()") + ","+Eval("row[1].ToString()") %>' /></div>
        <div class="oy-sil"><img src="images/oy-sil.png" width="11" height="13" style="position: relative; top: 30px; " /></div>
    </div>
</div>

这是背后的代码：

protected void ImageButton2_Click(object sender, ImageClickEventArgs e)
{
    ImageButton objImage = (ImageButton)sender;
    string[] commandArgs = objImage.CommandArgument.ToString().Split(new char[] { ',' });
    string id = commandArgs[0];
    string text = commandArgs[1];

    //  string s= Imageid.UniqueID.ToString();
    //this.baslik2.Text = s;
}

如何在Asp.net中通过命令参数传递多个值

我检查了您的代码，似乎没有任何问题。请确保Image commandArgument正在获取值。首先在标签中检查它是否正在获取值。

然而，这是我在项目中使用的样本

<asp:GridView ID="GridViewUserScraps" ItemStyle-VerticalAlign="Top" AutoGenerateColumns="False" Width="100%" runat="server" OnRowCommand="GridViews_RowCommand" >
        <Columns>
            <asp:TemplateField SortExpression="SendDate">
                <ItemTemplate>
                <asp:Button ID="btnPost" CssClass="submitButton" Text="Comment" runat="server" CommandName="Comment" CommandArgument='<%#Eval("ScrapId")+","+ Eval("UserId")%>' />
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>

首先绑定GridView。

public void GetData()
{
   //bind ur GridView
   GridViewUserScraps.DataSource = dt;
   GridViewUserScraps.DataBind();
}
protected void GridViews_RowCommand(object sender, GridViewCommandEventArgs e)
{
    if (e.CommandName == "Comment")
    {
        string[] commandArgs = e.CommandArgument.ToString().Split(new char[] { ',' });
        string scrapid = commandArgs[0];
        string uid = commandArgs[1];
    }
}

你可以试试这个：

CommandArgument='<%# "scrapid=" + Eval("ScrapId")+"&"+"UserId="+ Eval("UserId")%>'

CommandArgument='<%#Eval("ScrapId").Tostring()+ Eval("UserId")%>
//added the comment function

使用imagebutton的OnCommand事件。在里面做

<asp:Button id="Button1" Text="Click" CommandName="Something" CommandArgument="your command arg" OnCommand="CommandBtn_Click" runat="server"/>

代码背后：

void CommandBtn_Click(Object sender, CommandEventArgs e) 
{    
    switch(e.CommandName)
    {
        case "Something":
            // Do your code
            break;
        default:              
            break; 
    }
}
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