我有一个GV，我想在其中更新我的项目。我没有使用LDS或任何因为我更新存储在多个数据库中的项目。
以下是我的GV的标记：
<asp:GridView runat="server" Height="233px" Width="602px" ID ="gvShowComm"
CellPadding="4" ForeColor="#333333" GridLines="None" OnRowEditing = "gvShowComm_RowEditing"
OnRowUpdating = "gvShowComm_RowUpdating"
OnRowCancelingEdit = "gvShowComm_RowCancelingEdit">
<Columns>
<asp:CommandField ShowCancelButton="True" ShowEditButton="True" />
<asp:TemplateField HeaderText = "Product ID">
<EditItemTemplate>
<asp:TextBox ID = "ProductName" runat = "server" Text ='<%# Bind("Product_ID") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID = "ProductName" runat = "server" Text ='<%# Bind("Product_ID") %>'/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "Plan Name">
<EditItemTemplate>
<asp:TextBox ID = "PlanName" runat = "server" Text ='<%# Bind("PlanName") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID = "PlanName" runat = "server" Text ='<%# Bind("PlanName") %>'/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "1st Yr Comm">
<EditItemTemplate>
<asp:TextBox ID = "HiComm" runat = "server" Text ='<%# Bind("HiCommissionOld") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID = "HiComm" runat = "server" Text ='<%# Bind("HiCommissionOld") %>'/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText = "2nd Yr Comm">
<EditItemTemplate>
<asp:TextBox ID = "LowComm" runat = "server" Text ='<%# Bind("LowCommissionOld") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID = "LowComm" runat = "server" Text ='<%# Bind("LowCommissionOld") %>'/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#999999" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#E9E7E2" />
<SortedAscendingHeaderStyle BackColor="#506C8C" />
<SortedDescendingCellStyle BackColor="#FFFDF8" />
<SortedDescendingHeaderStyle BackColor="#6F8DAE" />
</asp:GridView>
以下是我一直在尝试的代码，但我无法在我的变量中获取更新的TEXT：
protected void Page_Load(object sender, EventArgs e)
{
if (Session["EntitySelected"] == null)
{
MessageBox.Show("Please Select an Entity first!");
Response.Redirect("~/FrontEnd/AgentList.aspx");
}
int getEntity = Int16.Parse(Session["EntitySelected"].ToString());
this.Label3.Text = "You Selected Entity: " + (string)Session["EntitySelected"];
dbWebEnrollDataContext dt1 = new dbWebEnrollDataContext(); //This has PlanName!
CommissionsV2DataContext cv1 = new CommissionsV2DataContext(); //Entity_Product_Point
var td = from s in GetEntity()
join r in GetPlanName() on s.Product_ID equals r.Product_ID
where s.Entity_ID == getEntity
select new
{
s.Product_ID,
r.PlanName,
s.HiCommissionOld,
s.LowCommissionOld
};
gvShowComm.DataSource = td;
gvShowComm.DataBind();
}
static IEnumerable<Entity_Product_Point> GetEntity()
{
var context = new CommissionsV2DataContext();
return (from t in context.Entity_Product_Points select t).AsQueryable();
}
static IEnumerable<PlanMaster> GetPlanName()
{
var context = new dbWebEnrollDataContext();
return (from t in context.PlanMasters select t).AsQueryable();
}
protected void btnAdd_Click(object sender, EventArgs e)
{
if (ddlPlan.SelectedValue != null && tb1stYr.Text != "" && tbMaximum.Text != "" && tbRecurring.Text != "")
{
//Accessing Variables and defining them.
using (dbWebEnrollDataContext dt = new dbWebEnrollDataContext())
try
{
int getEntity = Int16.Parse(Session["EntitySelected"].ToString());
var productName = ddlPlan.SelectedValue.ToString();
decimal firststYrComp = Int16.Parse(tb1stYr.Text.ToString());
decimal recurringComp = Int16.Parse(tbRecurring.Text.ToString());
decimal maximumPercent = Int16.Parse(tbMaximum.Text.ToString());
//Pulling the Product_ID from the PlanMaster Table from WebEnroll DB!
//var tr = dt.PlanMasters.First(s => s.PlanName == productName);
var tr = from s in dt.PlanMasters
where s.PlanName == productName
select s.Product_ID;
decimal finalFirstYrComp = decimal.Round((firststYrComp / maximumPercent), 3);
decimal finalRecurringComp = decimal.Round((recurringComp / maximumPercent), 3);
//Updating the Table: Entity_Product_Points in CommissionsV2 DB.
CommissionsV2DataContext cv = new CommissionsV2DataContext();
Entity_Product_Point ev = new Entity_Product_Point();
ev.Entity_ID = getEntity;
ev.Product_ID = tr.First();
ev.HiCommissionOld = (double)firststYrComp;
ev.LowCommissionOld = (double)recurringComp;
ev.HiCommission = (double)finalFirstYrComp * 100;
ev.LowCommission = (double)finalRecurringComp * 100;
ev.DateCreated = System.DateTime.Now;
cv.Entity_Product_Points.InsertOnSubmit(ev);
cv.SubmitChanges();
var td = from s in GetEntity()
join r in GetPlanName() on s.Product_ID equals r.Product_ID
where s.Entity_ID == getEntity
select new
{
s.Product_ID,
r.PlanName,
s.HiCommissionOld,
s.LowCommissionOld
};
gvShowComm.DataSource = td;
gvShowComm.DataBind();
}
catch (Exception err)
{
MessageBox.Show("" + err);
}
}
else
{
MessageBox.Show("Please Enter Entry for the textboxes!");
}
tb1stYr.Text = "";
tbMaximum.Text = "";
tbRecurring.Text = "";
ddlPlan.SelectedIndex = 0;
}
protected void gvShowComm_RowEditing(object sender, GridViewEditEventArgs e)
{
gvShowComm.EditIndex = e.NewEditIndex;
gvShowComm.DataBind();
}
protected void gvShowComm_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
gvShowComm.EditIndex = -1;
gvShowComm.DataBind();
}
protected void gvShowComm_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
System.Web.UI.WebControls.TextBox myBox = gvShowComm.Rows[e.RowIndex].FindControl("PlanName") as System.Web.UI.WebControls.TextBox;
string s = myBox.Text;
gvShowComm.DataBind();
}
}
答案 0 :(得分：2)
两个想法：
首先，您可以使用模板字段作为列和＆amp;命名控件
持有你的数据。然后可以按如下方式检索这些控件的内容：((TextBox)e.Row.FindControl("TextBoxProductName")).Text
模板看起来像这样：
<asp:TemplateField HeaderText="Product Name">
<EditItemTemplate>
<asp:TextBox ID="TextBoxProductName" runat="server" Text='<%# Bind("Product_Name") %>'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="LabelProductName" runat="server" Text='<%# Bind("Product_Name") %>'/>
</ItemTemplate>
</asp:TemplateField>
另请注意，由于您手动数据绑定gridview，因此在编辑按钮触发的RowEditing（非RowUpdating）事件中，必须设置gridview的编辑索引。尝试：
gvShowComm.EditIndex = e.Row.RowIndex;
或者，第二，你可以拥有多个数据键
网格视图。尝试类似的东西：
DataKeyNames="Product_ID,Product_Name,Product_Price"
然后可以按如下方式检索这些值：
gvShowComm.DataKeys[e.RowIndex]["Product_Name"]
我应该注意到DataKeys只是设计用于保存db主键。将它们用于其他任何事情都是一种破解。也就是说，当我需要为每一行存储一些信息时，偶尔需要它，但我不希望它对用户可见。
最后一点，不要将数据绑定放在页面加载中，除非你把它放在一个只触发初始页面加载而不是每次回发的条件中。例如：if（！IsPostback）......
答案 1 :(得分：1)
如果在GridViews标记中添加属性DataKeyNames="Product_ID"，则会在RowUpdating上获得Product_ID的值，
var keyValue = gvShowComm.DataKeys[e.RowIndex].Value;
int product = Convert.ToInt32(keyValue);