当我在gridview中单击下一页时，它给出了错误，我该如何解决？ [英] when I click next page in my gridview it gives me error how can I solve it?
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问题描述
我的页面中有一个gridview，它允许分页，但当我点击下一个数字时，它给了我这个错误：System.Web.HttpException：GridView''GridView1''触发了事件PageIndexChanging，但没有处理。我不知道如何解决它，我必须解决它，直到明天我真的需要帮助。
I have a gridview in my page it has allow paging but when I click next number it gives me this error: System.Web.HttpException: The GridView ''GridView1'' fired event PageIndexChanging which wasn''t handled. I dontknow how can I solve it and I have to solve it untill tommorrow I really need help .
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
CellPadding="4" DataKeyNames="idFromUsers" AutoGenerateColumns="False"
ForeColor="#333333" GridLines="None" onrowcommand="GridView1_RowCommand"
><AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<Columns>
<asp:BoundField HeaderText="order code" DataField="idfromIndex" />
<asp:BoundField HeaderText="customer code" DataField="idFromUsers" />
<asp:BoundField HeaderText="factor number" DataField="indexNO"/>
<asp:BoundField HeaderText="bank name" DataField="bankName" />
<asp:BoundField HeaderText="order date" DataField="orderDate" DataFormatString="{0:yyyy/MM/dd}"/>
<asp:ButtonField CommandName="cart" Text="shopping cart detailsد" >
<ItemStyle HorizontalAlign="Center" />
</asp:ButtonField>
<asp:ButtonField CommandName="customer" Text="customer details">
<ItemStyle HorizontalAlign="Center" />
</asp:ButtonField>
</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>
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
initialGrid1();
}
}
private void initialGrid1()
{
getDistinctOrderId();
DataTable myDT = getTheData();
GridView1.DataSource = myDT;
GridView1.DataBind();
}
private void getDistinctOrderId()
{
string command = "";
if (ViewState["searchFactor"] != null)
{
int index = Convert.ToInt32(ViewState["searchFactor"]);
switch (index)
{
case 1:
{
string fact = factorNO.Text.Trim();
command = "SELECT min(id), [idfromIndex] FROM OrdersView WHERE [idfromIndex] IN(SELECT DISTINCT [idfromIndex] FROM OrdersView where IsObserve=''True'' and Ispay=''False'' and indexNO =''" + fact + "'' ) GROUP BY [idfromIndex] ";
}
break;
case 2:
{
string name = TextBox3.Text.Trim();
string familly = TextBox4.Text.Trim();
command = "SELECT min(id), [idfromIndex] FROM OrdersView WHERE [idfromIndex] IN(SELECT DISTINCT [idfromIndex] FROM OrdersView where IsObserve=''True'' and Ispay=''False'' and user_name =''" + name + "'' and user_familly =''" + familly + "'' ) GROUP BY [idfromIndex] ";
}
break;
case 3:
{
command = getSearchDate();
//string startdate = TextBox1.Text.Trim();
//string enddate = TextBox2.Text.Trim();
//command = "SELECT min(id), [idfromIndex] FROM OrdersView WHERE [idfromIndex] IN(SELECT DISTINCT [idfromIndex] FROM OrdersView where IsObserve=''True'' and Ispay=''False'' and orderDate >=''" + startdate + "'' and orderDate <=''" + enddate + "'' ) GROUP BY [idfromIndex] ";
}
break;
case 0:
{
command = "SELECT min(id), [idfromIndex] FROM OrdersView WHERE [idfromIndex] IN(SELECT DISTINCT [idfromIndex] FROM OrdersView where IsObserve=''True'' and Ispay=''False'' ) GROUP BY [idfromIndex] ";
}
break;
default:
{
command = "SELECT min(id), [idfromIndex] FROM OrdersView WHERE [idfromIndex] IN(SELECT DISTINCT [idfromIndex] FROM OrdersView where IsObserve=''True'' and Ispay=''False'') GROUP BY [idfromIndex] ";
}
break;
}
}
else
{
command = "SELECT min(id), [idfromIndex] FROM OrdersView WHERE [idfromIndex] IN(SELECT DISTINCT [idfromIndex] FROM OrdersView where IsObserve=''True'' and Ispay=''False'') GROUP BY [idfromIndex] ";
}
SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["mobile_storeConnectionString"].ConnectionString);
SqlCommand cmd = new SqlCommand();
cmd.Connection = myConnection;
cmd.CommandType = CommandType.Text;
cmd.CommandText = command;
DataView MyDv = new DataView();
try
{
myConnection.Open();
SqlDataReader dr = cmd.ExecuteReader();
DataTable dt = new DataTable();
dt.Load(dr);
MyDv = dt.DefaultView;
for (int i = 0; i < MyDv.Count; i++)
{
if (i == 0)
{
distinctList = MyDv[i][0].ToString() + ",";
}
if (i == MyDv.Count - 1)
{
distinctList += MyDv[i][0].ToString();
}
else if (i != 0 && i != MyDv.Count - 1)
{
distinctList += MyDv[i][0].ToString() + ",";
}
}
dr.Close();
//Label1.Text = MyDv.Count.ToString();
}
catch (Exception EXP)
{
}
finally
{ myConnection.Close(); }
}
public DataTable getTheData()
{
DataSet DS = new DataSet();
SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString1"].ConnectionString);
SqlCommand cmd = new SqlCommand();
cmd.Connection = myConnection;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select idfromIndex,indexNO,bankName,Ispay,orderDate,idFromUsers,orderId from factors where orderId IN (" + distinctList + ") and IsObserve=''True''";
// SqlDataAdapter objSQLAdapter = new SqlDataAdapter("select idfromIndex,indexNO,bankName,Ispay,orderDate,idFromUsers,orderId from factors where orderId IN (" + distinctList + ") and IsObserve=''False''", myConnection); objSQLAdapter.Fill(DS, "mobile_store");
//ViewState["idfromindex"] = DS.Tables[0].Rows[0].ce
// DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(DS);
try
{
myConnection.Open();
cmd.ExecuteNonQuery();
}
catch (Exception EXP)
{
}
finally
{ myConnection.Close(); }
return DS.Tables[0];
}
推荐答案
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
bindGridView(); //bindgridview will get the data and bind it again
}
尝试上面的代码，看看是否有效。
Try above code and see if that works.
<asp:GridView ID="GridView2" runat="server" AllowPaging="True"
CellPadding="4" DataKeyNames="idFromUsers" AutoGenerateColumns="False" onpageindexchanging="GridView1_PageIndexChanging"
ForeColor="#333333" GridLines="None" onrowcommand="GridView1_RowCommand"
>
并在该代码之后
and after that code
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
bindGrid();
}
HI，
你可以使用datapager为你的分页提供分页网格。
将以下代码添加到网格控件下方的aspx页面：
You can use datapager to give paging to your grid.
Add the following code to the aspx page below the grid control:
<asp:DataPager ID="DataPagerPro" runat="server"
PagedControlID="Grid"
PageSize="8">
...
</asp:DataPager>
将以下事件添加到后面的代码中：
Add the following event to code behind:
protected void Grid_PagePropertiesChanging(object sender, PagePropertiesChangingEventArgs e)
{
this.DataPagerPro.SetPageProperties(e.StartRowIndex, e.MaximumRows, false);
Grid.DataBind();
}
确保您的网格具有Grid_PagePropertiesChanging方法定义。
谢谢
Make sure your grid is having the "Grid_PagePropertiesChanging" method defined.
Thanks
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