[英]System.Byte[] displaying in Datagrid column
All columns are displaying correctly in the DataGrid except for one. 除其中一列外,所有列均在DataGrid中正确显示。 I ran this sql query in MySqlWorkbench and it works so there is nothing wrong with that: 我在MySqlWorkbench中运行了此sql查询,它可以正常工作,因此没有任何问题:
string query = @"SELECT c.*,cc.CountryName ,(Select UserName FROM users WHERE User_ID = c.CreatedByUser) AS CreatedBy,
(select GROUP_CONCAT(AreaDescription) from pxpcountycodes where countyid=c.id) as AreaDescription,
(select GROUP_CONCAT(cmr.AccountCode)) as Member " +
" FROM counties c " +
" LEFT JOIN Countries cc ON c.CountryID = cc.ID " +
" LEFT JOIN PXPCountyCodes PXPc on c.ID = PXPc.CountyID" +
" LEFT JOIN customer cmr ON PXPc.MemberID = cmr.ID " +
" WHERE c.Company_ID = ?companyID ";
And the code for the DataGrid: 以及DataGrid的代码:
<asp:DataGrid runat="server" CssClass="tblResults" OnItemDataBound="dgList_ItemCreated" AllowSorting="true" OnSortCommand="dgList_Sort" ID="dgList" DataKeyField="ID" AutoGenerateColumns="false">
<HeaderStyle CssClass="tblResultsHeader" />
<AlternatingItemStyle BackColor="#EEEEEE" />
<Columns>
<asp:BoundColumn DataField="CountyName" HeaderText="County Name/PostCode" SortExpression="c.CountyName" ></asp:BoundColumn>
<asp:BoundColumn DataField="Description" HeaderText="Description" SortExpression="c.Description"></asp:BoundColumn>
<asp:BoundColumn DataField="Member" HeaderText="Member" SortExpression="Member"/>
<asp:BoundColumn DataField="CountryName" HeaderText="Country" SortExpression="cc.CountryName"></asp:BoundColumn>
<asp:BoundColumn DataField="CountyPostCode" HeaderText="County/PostCode" SortExpression="c.CountyPostCode"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
The problem is with the Member
column. 问题出在Member
栏。 This column displays a list of companies, so for example the column should display CONWAY,NGWCLARE
. 此列显示公司列表,例如,该列应显示CONWAY,NGWCLARE
。 Some columns are trying to display around 5 companies so is the length causing a problem? 一些列试图显示大约5家公司,所以长度会引起问题吗?
Code behind Grid: 网格背后的代码:
DataSet ds = Lookups.County.GetAllCounties(Company.Current.CompanyID, ddlSearchBy.SelectedItem.Value, txtSearchBy.Text, IsActive, rbl_both.Checked, OrderBy, false, -1, "", 0);
if (ds.Tables[0].Rows.Count > 0)
{
dgList.DataSource = ds.Tables[0];
dgList.DataBind();
}
Try this query. 试试这个查询。 CASTing GROUP_CONCAT's output AS CHAR should fix the issue. 放空GROUP_CONCAT的输出AS CHAR应该可以解决此问题。
string query = @"SELECT c.*,cc.CountryName ,(Select UserName FROM users WHERE User_ID = c.CreatedByUser) AS CreatedBy,
(select GROUP_CONCAT(AreaDescription) from pxpcountycodes where countyid=c.id) as AreaDescription,
CAST(GROUP_CONCAT(cmr.AccountCode) As CHAR) as Member " +
" FROM counties c " +
" LEFT JOIN Countries cc ON c.CountryID = cc.ID " +
" LEFT JOIN PXPCountyCodes PXPc on c.ID = PXPc.CountyID" +
" LEFT JOIN customer cmr ON PXPc.MemberID = cmr.ID " +
" WHERE c.Company_ID = ?companyID ";
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