在这里，我尝试根据复选框列表中的选择绑定(bind) GridView 。 执行时我只得到空白页。谁能指出错误是什么？
protected void Button1_Click(object sender, EventArgs e)
{
String query = "Select Proj_id,Proj_name,Front_end,Back_end from Proj_details where Front_end = 'Android'";
String[] frontend ={ "Android", "Asp", "Asp.net", "C#.net", "J2EE", "Java", "Matlab", "NS2", "PHP", "VB", "VB.net" };
try
{
for (int i = 0; i <= CheckBoxList1.Items.Count; i++)
{
if (CheckBoxList1.Items[i].Selected)
query = query.Insert(query.Length, frontend[i] + "','");
}
con.Open();
query = query.Remove(query.Length - 1);
query = query.Remove(query.Length - 1);
query = query.Insert(query.Length, ")");
SqlDataAdapter sqlada = new SqlDataAdapter(query, con);
DataSet ds = new DataSet();
sqlada.Fill(ds, "Proj_details");
gv_search_project.DataSource = ds.Tables[0];
gv_search_project.DataBind();
}
catch (Exception ex)
{
}
finally
{
Label1.Text = query.ToString();
}
}
最佳答案
您将在此处退出数组:
for (int i = 0; i <= CheckBoxList1.Items.Count; i++)
{
if (CheckBoxList1.Items[i].Selected)
query = query.Insert(query.Length, frontend[i] + "','");
}
您需要更换:
i <= CheckBoxList1.Items.Count
与:
i < CheckBoxList1.Items.Count
关于c# - C# 动态添加数据源到gridview，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11987432/