Question

我想使用asp.net图表控件，在代码隐藏中使用此代码：

chIstatistik.DataSource =
                SqliteDatabase.ExecuteDataTable("SELECT COUNT(*) as sayi, kategoriNo FROM kisi WHERE kategoriNo = " +
                                                drpCategories.SelectedItem.Value);


            chIstatistik.Series["Series1"].XValueMember = "sayi";
            chIstatistik.Series["Series1"].YValueMembers = "kategoriNo";
            chIstatistik.DataBind();

我想要做的是，在给定的“kategoriNo”上显示行数。代码中有错误吗？图表显示为空，但我可以在数据源中看到数据。

由于

Answer 1

尝试以下代码

DataTable dt = SqliteDatabase.ExecuteDataTable("SELECT COUNT(*) as Yaxis, kategoriNo as Xaxis FROM kisi WHERE kategoriNo = " + drpCategories.SelectedItem.Value);
DataView dv = dt.DefaultView;
// Populate series data
chIstatistik.Series["Series1"].Points.DataBindXY(dv, "Xaxis", dv, "Yaxis");

KategoriNo应该是一些将在Xaxis上显示的名称。希望它有所帮助

ASP.NET图表控件是空的

1 个答案: