在容器中找不到數據項。 容器必須實現IDataItemContainer或具有一個名為DataItem的屬性

Question

我試圖將字符串數組綁定到網格視圖。 使用下面給出的代碼顯示錯誤"A data item was not found in the container. The container must either implement IDataItemContainer, or have a property named DataItem." 請幫助我找到合適的解決方案。 謝謝。

碼：

protected void ddlCircle_SelectedIndexChanged(object sender, EventArgs e)
{
    ShadingAnalysisDataSetTableAdapters.tbl_CadEngineersTeamTableAdapter cd;
    cd = new ShadingAnalysisDataSetTableAdapters.tbl_CadEngineersTeamTableAdapter();
    DataTable dt = new DataTable();
    dt = cd.GetAvailableData(ddlCircle.SelectedValue); // Getting details of unassigned site

    int x, y; //z;

    DataTable dt3 = new DataTable();
    dt3 = cd.GetTeam();
    y = dt3.Rows.Count;

    x = dt.Rows.Count; // counting the unassinged sites

    DataTable dt2 = new DataTable();
    dt2 = cd.GetAssignTeam(x);           //Getting team based on count

    string[] arr = new string[dt2.Rows.Count];
    int i = 0;
    foreach (DataRow r in dt2.Rows)
    {
        arr[i] = r["Team"].ToString(); // assigning available team to array
        i++;
    }

    string[] strArr = new string[100]; // another array to copy arr values.

    i = 0; int j = 0;
    while (j <= x)
    {
        strArr[j]=  arr[i] ; // copying the arr[] values into strArr[] based on count.
        i++;
        j++;

        if (i == 3)
        {
            i = 0;
        }
    }

    GridView2.DataSource = strArr;
    GridView2.DataBind(); // error popup here
}

Answer 1

定義一個GridView的列，使其綁定到DataTable的Team列，並將DataTable作為DataSource直接分配給GridView 。 然后DataBind到DataTable 。

Answer 2

將數組綁定到DataGrid就像將香蕉放入蛋盤一樣。 請您必須根據datagrid綁定具有結構的源。 正如@Konstantin D所建議-Infragistics

Answer 3

現在，GridView顯示了strArr [j]數組值

protected void ddlCircle_SelectedIndexChanged(object sender, EventArgs e)
{
    ShadingAnalysisDataSetTableAdapters.tbl_CadEngineersTeamTableAdapter cd;
    cd = new ShadingAnalysisDataSetTableAdapters.tbl_CadEngineersTeamTableAdapter();
    DataTable dt = new DataTable();
    dt = cd.GetAvailableData(ddlCircle.SelectedValue); // Getting details of unassigned site

    int x, y; //z;

    DataTable dt3 = new DataTable();
    dt3 = cd.GetTeam();
    y = dt3.Rows.Count;

    x = dt.Rows.Count; // counting the unassinged sites

    DataTable dt2 = new DataTable();
    dt2 = cd.GetAssignTeam(x);           //Getting team based on count

    string[] arr = new string[dt2.Rows.Count];
    int i = 0;
    foreach (DataRow r in dt2.Rows)
    {
        arr[i] = r["Team"].ToString(); // assigning available team to array
        i++;
    }

    string[] strArr = new string[x+1]; // another array to copy arr values.

    i = 0; int j = 0;
    while (j <= x)
    {
        strArr[j]=  arr[i] ; // copying the arr[] values into strArr[] based on count.
        i++;
        j++;

        if (i == 3)
        {
            i = 0;
        }
    }

    GridView2.DataSource = strArr;
    GridView2.DataBind();
}