Question

我想在Alert框中显示变量的值，所以请给我建议。这是我的代码。

public partial class WebForm1 : System.Web.UI.Page
     {
        int sum3; 
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            { 
                DataTable dTable = new DataTable("mainTable");
                 DataColumn Name = new DataColumn("Name");
                dTable.Columns.Add(Name);
                 DataColumn Marks = new DataColumn("Marks");
                dTable.Columns.Add(Marks); 
                DataColumn Marks2 = new DataColumn("Marks2");
                dTable.Columns.Add(Marks2); 
                DataColumn Total = new DataColumn("Total");
                dTable.Columns.Add(Total); 
                int sum = 0;
                int sum2 = 0; 
                DataRow dRow = null;
                for (int i = 0; i < 5; i++)
                {
                    dRow = dTable.NewRow();
                    dRow["Name"] = i + " - Sagar";
                    dRow["Marks"] = i;
                    sum += i;
                    dRow["Marks2"] = i + 5;
                    sum2 += i + 5;
                    dRow["Total"] = i + i + 5;
                    sum3 += i + i + 5;
                    dTable.Rows.Add(dRow);
                }
                 Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "showAlert(" + sum3.ToString() + ");", true);

                       aspDataGrid.DataSource = dTable;
                aspDataGrid.DataBind();
            }
        }

        protected void btn_Submit_Click(object sender, EventArgs e)
        {
            marks1.Text = "Total Marks : " + sum3.ToString();
            Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "showAlert(" + sum3.ToString() + ");", true);
        }
}

提前致谢。

Answer 1

您可以尝试使用会话... ...

在你的Page_Load事件中写会话[“sum3”] =在for循环之后的sum3然后你可以写入此代码按钮提交按钮 Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "showAlert(" + Session["sum3"] + ");", true);

Answer 2

正确的行是：

Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert(" + sum3.ToString() + ");", true);

在btn_Submit_Click和Page_Load中替换它。它会工作！

想要在警告框中显示变量的值

2 个答案: