gridview中的查看按钮对应于用户catergory [英] View button in gridview corresponding to a user catergory
问题描述
我有一个gridview，我想添加一个按钮'VIEW'，它重定向到链接到报告的（Customers.aspx？CustomerID =）页面。每个客户都有一个ID，每个ID都与一个报告相关联。
我不希望ID显示在我的gridview中，我希望它被隐藏。此外，我希望仅当USER是管理员或销售人员类别时才会显示此按钮。有没有办法我可以将我的CustomerID绑定到UserCategory以分别为每个ID生成报告。
我也试过看其他帖子但我的按钮没有由于某种原因重定向。有人可以帮我弄清楚我在这里做错了什么，或者我错过了什么。此外，有一个更简单的方法这样做任何帮助将不胜感激。谢谢。
我尝试了什么：
< asp：TemplateField ShowHeader =False>
< ItemTemplate>
< asp：Button ID =btnViewrunat =serverCausesValidation =falseCommandName =SelectText =VIEW/>
< / ItemTemplate>
< ControlStyle CssClass =button/>
< / asp：TemplateField>
protected void btnView（object sender，EventArgs e ）
{
txtHFUserCategory.Value = Session [UserCategoryPC]。ToString（）;
if（txtHFUserCategory.Value ==A|| txtHFUserCategory.Value ==B）
{
按钮btn =（按钮）发件人;
GridViewRow row =（GridViewRow）btn.NamingContainer;
Label lblCustomerID =（Label）row.FindControl（lblCustomerID）;
String strCustomerID = lblCustomerID.Text;
Session [UserID] = txtHFUserID.Value;
Response.Redirect（Customer.aspx？CustomerID =）;
}
}
如何使用gridview，隐藏ID，使用组件的 DataKeyNames 属性。你没有看到id。
< asp ：GridView ID = grd_result DataKeyNames = id runat = server OnRowCommand = grd_result_RowCommand >
要激活按钮，请不要在TemplateField中使用按钮组件，请使用 ButtonField 组件，更容易。此按钮由 OnRowCommand 事件执行。
您可以在网格中使用许多ButtonField，以使用 CommandName 属性区分它们。
< asp：ButtonField ButtonType = 链接 ItemStyle-HorizontalAlign = 中心 ItemStyle-Width = 100px CommandName = view HeaderText = 文字 = 查看 ControlStyle-BorderColor = 黑色 / >
以下是帮助您的示例。
HTML代码
< div >
< asp：GridView < span class =code-attribute> ID = grd_result DataKeyNames = id runat < span class =code-keyword> = server EmptyDataText = :: No Data :: AutoGenerateColumns = 错误 BorderStyle = 实体 OnRowCommand = grd_result_RowComman d FooterStyle-CssClass = GridFooter AllowPaging = false ShowFooter = True >
< 列 >
< asp：ButtonField ButtonType = 链接 ItemStyle-HorizontalAlign = 中心 ItemStyle-Width = 100px CommandName = view < span class =code-attribute> HeaderText = 文字 = 查看 ControlStyle-BorderColor = 黑色 / >
< asp：BoundField HeaderText < span class =code-keyword> = 名称 datafield = name HeaderStyle-HorizontalAlign = 左 / >
< /列 >
< / asp：GridView >
< span class =code-keyword>< / div >
< br / >
< asp：标签 ID = lblmsg runat = server 文字 = - > < / asp：Label >
CODE-BEHIND
< pre lang =c＃> protected void Page_Load（ object sender，EventArgs e）
{
if （！IsPostBack）
{
// 使用数据填充gridview。
DataTable dt = new DataTable（）;
dt.Columns.Add（ id）; dt.Columns.Add（< span class =code-string> name）;
DataRow dr = dt.NewRow（）;
dr [ id] = 1; dr [ name ] = John; dt.Rows.Add（dr）;
dr = dt.NewRow（）;
dr [ id] = 2; dr [ name ] = Mary; dt.Rows.Add（dr）;
dr = dt.NewRow（）;
dr [ id] = 3; dr [ name] = Sarah; dt.Rows.Add（dr）;
dr = dt.NewRow（）;
dr [ id] = 4; dr [ name ] = Peter; dt.Rows.Add（dr）;
this .grd_result.DataSource = dt;
this .grd_result.DataBind（）;
}
}
private bool user_permission（ string user）
{
// 此处，验证用户是管理员还是销售员的代码
// 这个信息通常记录在数据库中。
return true ;
}
protected void grd_result_RowCommand（ object sender，GridViewCommandEventArgs e）
{
try
{
// this.Page.User.Identity.Name。如果使用用户和密码对系统进行身份验证，则使用此代码。
if （ this .user_permission（ this .Page.User.Identity.Name））
{
// 找到名称按钮。
string current_command = e.CommandName ;
// 找到我点击的行的索引。
int current_row_index = Int32 .Parse（e.CommandArgument.ToString（））;
// 找到该行的ID。
string id = this .grd_result.DataKeys [current_row_index] .Value.ToString（）;
switch （current_command）
{
case view：
{
this .lblmsg.Text = 我的ID是 + id + 我的名字是 + this .grd_result。行[current_row_index] .Cells [ 1 ]。文本;
break ;
}
}
}
其他 {此 .lblmsg.Text = 您无权执行此任务。;}
}
catch （例外情况）
{
此 .lblmsg.Text = 错误： + ex.Message;
}
}
隐藏列
int columnToHide = 4;
if（role ==Admin）{
GridView1.Columns [columnToHide] .Visible = false;
}
您应使用隐藏字段而不是标签隐藏和存储数据
I have a gridview and I want to add a button 'VIEW' which redirects to the (Customers.aspx?CustomerID=) page which links to a report. Every customer has a ID and each ID is associated with a report.
I don't want the ID to show up in my gridview and I want it to be hidden. Also, I want this button to show up only if the USER is an "Admin" or a "Salesperson" category. Is there a way i can bind my CustomerID to a UserCategory to generate reports for each ID separately.
I tried looking at some other posts as well but my button doesn't redirect for some reason. Can someone please help me figure out what i am doing wrong here or if i am missing something. Also, is there a simpler way of doing this Any help will be greatly appreciated. Thank you.
What I have tried:
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:Button ID="btnView" runat="server" CausesValidation="false" CommandName="Select" Text="VIEW" />
</ItemTemplate>
<ControlStyle CssClass="button" />
</asp:TemplateField>
protected void btnView(object sender, EventArgs e)
{
txtHFUserCategory.Value = Session["UserCategoryPC"].ToString();
if (txtHFUserCategory.Value == "A" || txtHFUserCategory.Value == "B" )
{
Button btn = (Button)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
Label lblCustomerID = (Label)row.FindControl("lblCustomerID");
String strCustomerID = lblCustomerID.Text;
Session["UserID"] = txtHFUserID.Value;
Response.Redirect("Customer.aspx?CustomerID=" );
}
}
Hi,
How you are using a gridview, to hide the ID, use the DataKeyNames property of the component. You do not see the id.
<asp:GridView ID="grd_result" DataKeyNames="id" runat="server" OnRowCommand="grd_result_RowCommand">
To activate the button, do not use a button component in the TemplateField, use a ButtonField component, it is easier. This button is executed by the OnRowCommand event.
You can have many ButtonFields in your grid, to differentiate them use CommandName property.
<asp:ButtonField ButtonType="Link" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="100px" CommandName="view" HeaderText="" Text="View" ControlStyle-BorderColor="Black" />
Here is an example to help you.
HTML CODE
<div> <asp:GridView ID="grd_result" DataKeyNames="id" runat="server" EmptyDataText=":: No Data ::" AutoGenerateColumns="False" BorderStyle="Solid" OnRowCommand="grd_result_RowCommand" FooterStyle-CssClass="GridFooter" AllowPaging="false" ShowFooter="True"> <Columns> <asp:ButtonField ButtonType="Link" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="100px" CommandName="view" HeaderText="" Text="View" ControlStyle-BorderColor="Black" /> <asp:BoundField HeaderText="Name" datafield="name" HeaderStyle-HorizontalAlign="Left" /> </Columns> </asp:GridView> </div> <br /> <asp:Label ID="lblmsg" runat="server" Text="-"></asp:Label>
CODE-BEHIND
protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { //Fill the gridview with data. DataTable dt = new DataTable(); dt.Columns.Add("id");dt.Columns.Add("name"); DataRow dr = dt.NewRow(); dr["id"] = "1";dr["name"] = "John";dt.Rows.Add(dr); dr = dt.NewRow(); dr["id"] = "2";dr["name"] = "Mary";dt.Rows.Add(dr); dr = dt.NewRow(); dr["id"] = "3"; dr["name"] = "Sarah";dt.Rows.Add(dr); dr = dt.NewRow(); dr["id"] = "4";dr["name"] = "Peter";dt.Rows.Add(dr); this.grd_result.DataSource = dt; this.grd_result.DataBind(); } } private bool user_permission(string user) { //Here, the code that verify if the user is admin or Salesperson //This information is normally record in the database. return true; } protected void grd_result_RowCommand(object sender, GridViewCommandEventArgs e) { try { //this.Page.User.Identity.Name. This code is used if you authenticate the system with an user and password. if (this.user_permission(this.Page.User.Identity.Name)) { //find the name button. string current_command = e.CommandName; //find the index of line that i clicked. int current_row_index = Int32.Parse(e.CommandArgument.ToString()); //find the id the line. string id = this.grd_result.DataKeys[current_row_index].Value.ToString(); switch (current_command) { case "view": { this.lblmsg.Text = "My id is " + id + " and my name is " + this.grd_result.Rows[current_row_index].Cells[1].Text; break; } } } else{this.lblmsg.Text = "You don't have permission to execute this task.";} } catch (Exception ex) { this.lblmsg.Text = "Error: " + ex.Message; } }
Hide the column
int columnToHide =4; if(role=="Admin"){ GridView1.Columns[columnToHide].Visible = false; }
You shall useHiddenfield instead ofLabelto hide and store the data
这篇关于gridview中的查看按钮对应于用户catergory的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
