我有一个gridview。 gridview有一个文本框多行,用于保存文本。之后我有一个名为approved的图像按钮列,一个名为not approved的列。我想在单击已批准或未批准之前强制用户读取多行框内的文本。我如何以编程方式实现此目的?我知道我应该创建一个Rowdatabound事件,但我应该用代码做什么?我正在使用c#ASP.NET Web应用程序。
答案 0 :(得分:0)
我知道您可以使用javascript跟踪浏览器的滚动条,但我个人从未遇到类似的文本框功能。我建议尝试稍微不同的方法,为什么不在网格视图中添加额外的列,其中有一个复选框控件 - 我已阅读并接受协议。只有在选中复选框时才会启用“批准”按钮,这是一个示例:
<强> ASPX:强>
<div>
<asp:ScriptManager ID="sm" runat="server" />
<asp:UpdatePanel ID="updatePanel" runat="server">
<ContentTemplate>
<asp:GridView ID="grid" runat="server" AutoGenerateColumns="false" OnRowDataBound="grid_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox TextMode="MultiLine" runat="server" ID="txtAgreement" Text='<%# Eval("Agreement") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
I have read and accepted the agreement
<asp:CheckBox ID="chkAgreement" AutoPostBack="true" runat="server" OnCheckedChanged="CheckedChanged" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnAccept" runat="server" Text="Accept" OnClick="Accept" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</div>
代码背后:
public partial class Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
var items = new List<License> { new License { Agreement = "Agreement 1" }, new License { Agreement = "Agreement 2" } };
grid.DataSource = items;
grid.DataBind();
}
}
protected void Accept(object sender, EventArgs e)
{
}
protected void grid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
(e.Row.FindControl("btnAccept") as Button).Enabled = false;
}
protected void CheckedChanged(object sender, EventArgs e)
{
var chkAgreement = sender as CheckBox;
Button btnAccept = null;
if (chkAgreement != null)
{
var row = chkAgreement.Parent.Parent as GridViewRow;
btnAccept = row.FindControl("btnAccept") as Button;
if (btnAccept != null)
if (chkAgreement.Checked)
btnAccept.Enabled = true;
else
btnAccept.Enabled = false;
}
}
}
public class License
{
public string Agreement { get; set; }
}