最近做了个GridView的数据绑定，在数据库中读取一条记录包含产品名字，植入日期，植入量，要做如下显示：
如此数据源就不好绑定，只好把列数做成固定的，绑定最近7天数据，当然此时列标题还是要最时间变化而变化的，代码如下：
<asp:GridView RowStyle-Wrap="false" runat="server" ShowHeader="true" AutoGenerateColumns="False"
ID="gvData" Width="98%" GridLines="Both" BorderWidth="1px" EnableModelValidation="false"
CellPadding="4" AutoGenerateEditButton="false">
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<Columns>
<asp:TemplateField HeaderText="植入量ID" Visible="false">
<ItemTemplate>
<asp:Label ID="lblImplantQuantityID" runat="server" Text='<%# Eval("lepu_implantedquantityId") %>'
Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="产品ID" Visible="false">
<ItemTemplate>
<asp:Label ID="lblProductId" runat="server" Text='<%# Eval("lepu_ThirdCatalogId") %>'
Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="产品名字">
<ItemTemplate>
<asp:Label ID="lblProductName" runat="server" Text='<%# Eval("productName") %>' Width="200px"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity1" Text='<%#Bind("lepu_implantedquantity1") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity2" Text='<%#Bind("lepu_implantedquantity2") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity3" Text='<%#Bind("lepu_implantedquantity3") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity4" Text='<%#Bind("lepu_implantedquantity4") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity5" Text='<%#Bind("lepu_implantedquantity5") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity6" Text='<%#Bind("lepu_implantedquantity6") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" ID="txtImplantQuantity7" Text='<%#Bind("lepu_implantedquantity7") %>' Width="80px"></asp:TextBox></ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
暂无数据</EmptyDataTemplate>
<EmptyDataRowStyle BackColor="#E5E5E5" ForeColor="black" HorizontalAlign="Center"
Font-Bold="True" />
<RowStyle Wrap="False" HorizontalAlign="Center" VerticalAlign="Middle"></RowStyle>
<PagerStyle BackColor="#d22238" ForeColor="White" HorizontalAlign="Center" Font-Bold="True" />
<HeaderStyle BackColor="#E5E5E5" Font-Bold="True" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
后台代码：
private void ChangeDataSourceType(List<wcfService.ImplantedQuantity> implantedQuantity)
{
Dictionary<string, string[]> implantQuantityList = new Dictionary<string, string[]>();
for (int index = 0; index < implantedQuantity.Count; index++)
{
if (!implantQuantityList.ContainsKey(implantedQuantity[index].lepu_ThirdCatalogId))
{
string[] quantity = new string[9];//第八个数组中存放产品名，第九个数据存放植入量ID,其他对应存放植入量
implantQuantityList.Add(implantedQuantity[index].lepu_ThirdCatalogId, quantity);
quantity[7] = implantedQuantity[index].productName;
quantity[8] = implantedQuantity[index].lepu_implantedquantityId;
}
int at = (DateTime.Now.Date - DateTime.Parse(implantedQuantity[index].lepu_implanteddate).ToLocalTime().Date).Days;
implantQuantityList[implantedQuantity[index].lepu_ThirdCatalogId][at] = implantedQuantity[index].lepu_implantedquantity;
}
DataBindGridView(implantQuantityList);
}
/// <summary>
/// 绑定数据
/// </summary>
/// <param name="implantQuantityList"></param>
protected void DataBindGridView(Dictionary<string, string[]> implantQuantityList)
{
DataTable dt = new DataTable();
dt.Columns.Add("lepu_ThirdCatalogId");
dt.Columns.Add("lepu_implantedquantityId");
dt.Columns.Add("productName");
dt.Columns.Add("lepu_implantedquantity1");
dt.Columns.Add("lepu_implantedquantity2");
dt.Columns.Add("lepu_implantedquantity3");
dt.Columns.Add("lepu_implantedquantity4");
dt.Columns.Add("lepu_implantedquantity5");
dt.Columns.Add("lepu_implantedquantity6");
dt.Columns.Add("lepu_implantedquantity7");
foreach (var item in implantQuantityList)
{
dt.Rows.Add(item.Key, item.Value[8], item.Value[7], item.Value[6], item.Value[5], item.Value[4], item.Value[3], item.Value[2], item.Value[1], item.Value[0]);
}
gvData.DataSource = dt;
for (int i = 3; i < gvData.Columns.Count; i++)//一定要在列存在后进行列名赋值，也就是要在列内容绑定后绑定列名，否则不存在列就不会绑定到任何数据
{
gvData.Columns[i].HeaderText = DateTime.Today.AddDays(i - 9).ToShortDateString();
//此时在设计页面不能有<HeaderTemplate>
//<asp:Label runat="server" ID="lblImplantDate4" Text='<%#Eval("lepu_implanteddate4") %>'></asp:Label></HeaderTemplate>
}
gvData.DataBind();//在绑定列标题时，一定要记者添加该句话，否则在页面上不会显示列标题
}
protected List<wcfService.ImplantedQAdjust> GetDataFromGridView()
{
List<wcfService.ImplantedQAdjust> implantQAdjustList = new List<wcfService.ImplantedQAdjust>();
for (int i = 0; i < gvData.Rows.Count; i++)
{
for (int j = 3; j < gvData.Columns.Count; j++)
{
wcfService.ImplantedQAdjust impantQAdujust = new wcfService.ImplantedQAdjust();
GridViewRow gRow = gvData.Rows[i];
impantQAdujust.lepu_reportdate = DateTime.Now.ToString();
impantQAdujust.lepu_dealer = dllOutCompany.SelectedValue;
impantQAdujust.lepu_hospital = dllHospital.SelectedValue;
impantQAdujust.lepu_implantedquantityid = ((Label)gRow.FindControl("lblImplantQuantityID")).Text;
impantQAdujust.lepu_ThirdCatalogId = ((Label)gRow.FindControl("lblProductId")).Text;
string implantQuantity = "txtImplantQuantity" + (j - 2);
impantQAdujust.lepu_adjustmentisimplanted = ((TextBox)gRow.FindControl(implantQuantity)).Text;
impantQAdujust.lepu_implanteddate = gvData.Columns[j].HeaderText;
implantQAdjustList.Add(impantQAdujust);
}
}
return implantQAdjustList;
}