如何根据下拉列表中的值选择重定向页面？

问题描述：

这是我的C＃代码。在该代码中，在下拉列表中有3个值断裂，关节和骨质疏松症。根据值的选择，它将相应地打开该页面并插入数据库。但在我的编码中，如果我选择破裂，它将不会重定向到该页面，而是插入数据库中，而当我选择关节和骨质疏松症值时，它将重定向到该页面但不会插入数据库中。任何人都可以告诉我我犯的错误，请提供适当的解决方案 ????

Here, is my C# code. In that code, in dropdown list there are 3 values fracture,joints and osteoporosis. based on selection of values it will open that page accordingly with insertion in database. But in my coding if I select "fracture" it will not redirect to that page but insert in database and while when I select joint and osteoporosis value it will redirect to that page but not insert in database. Can anyone tell me the mistake which I was commiting and please provide the appropriate solution ????

protected void DropDownList1_OnSelectedIndexChanged(object sender, EventArgs e)
    {
       // Response.Redirect("Orthodiagonsis.aspx?Value=" + DropDownList1.SelectedValue);
        if (DropDownList1.SelectedIndex == 0)
        {
            Response.Redirect("fracture.aspx");
        }
        else if (DropDownList1.SelectedIndex == 1)
        {
            Response.Redirect("Osteoporosis.aspx");
        }
        else if (DropDownList1.SelectedIndex == 2)
        {
            Response.Redirect("joints.aspx");
        }
        else
        {
            lbldmsg.Text = "Can't Redirect";
        }

    }

已添加代码块

code block added

答

如果下拉列表中有选择，如果它放在第零索引上，那么它将不会重定向

尝试像这样给出选定的值...

if dropdown having "Select" and if it it placed on Zeroth Index then it will not Redirect
Try to Give Selected Value like this...

protected void DropDownList1_OnSelectedIndexChanged(object sender, EventArgs e)
    {
       // Response.Redirect("Orthodiagonsis.aspx?Value=" + DropDownList1.SelectedValue);
        if (DropDownList1.SelectedValue == "F")
        {
            Response.Redirect("fracture.aspx");
        }
        else if (DropDownList1.SelectedValue =="O")
        {
            Response.Redirect("Osteoporosis.aspx");
        }
        else if (DropDownList1.SelectedValue =="J")
        {
            Response.Redirect("joints.aspx");
        }
        else
        {
            lbldmsg.Text = "Can't Redirect";
        }
 
    }

如何根据下拉列表中的值选择重定向页面？

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