在ASP.NET中的GridView中使用RadioButton的问题(Problem with usage of RadioButton in GridView in ASP.NET)

在ASP.NET中的GridView中使用RadioButton的问题(Problem with usage of RadioButton in GridView in ASP.NET) <asp:TemplateField HeaderText="Select One"> <ItemTemplate> <input name="MyRadioButton" type="radio" /> </ItemTemplate> </asp:TemplateField>

aspx.cs

protected void Button1_Click(object sender, EventArgs e) { foreach (GridViewRow di in GridView1.Rows) { RadioButton rad = (RadioButton)di.FindControl("MyRadioButton"); //Giving Error:Object reference not set to an instance of an object. if (rad.Checked&&rad!=null) { s = di.Cells[1].Text; } } Response.Redirect("applicants.aspx?form=" +s); }

我无法获得在RadioButton选择的行。 你能帮我解决这个问题吗？

<asp:TemplateField HeaderText="Select One"> <ItemTemplate> <input name="MyRadioButton" type="radio" /> </ItemTemplate> </asp:TemplateField>

aspx.cs

protected void Button1_Click(object sender, EventArgs e) { foreach (GridViewRow di in GridView1.Rows) { RadioButton rad = (RadioButton)di.FindControl("MyRadioButton"); //Giving Error:Object reference not set to an instance of an object. if (rad.Checked&&rad!=null) { s = di.Cells[1].Text; } } Response.Redirect("applicants.aspx?form=" +s); }

I couldn't get the row which is selected in RadioButton. Can you help me with this please.

最满意答案

您只能在服务器端控件上使用FindControl 。 用ASP.NET单选按钮替换<input> HTML元素，例如：

<asp:RadioButton ID="MyRadioButton" runat="server" ... />

You can only use FindControl with server-side controls. Replace your <input> HTML element with an ASP.NET radio button, e.g:

<asp:RadioButton ID="MyRadioButton" runat="server" ... />