Why DataGridView is not getting bound?

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In the following code, the DataSource 'ds' has data but the DataGridView doesnt show anything except blank columns. Using debugger, at line dataGridView.visible=true it shows as false.

How to bind database columns to DataGridView columns?

C#

List<string> adds = new List<string>();
SqlDataAdapter da = new SqlDataAdapter("seLECT YEAR(startdt) AS [Year],MONTH(startdt) AS [Month], DAY(startdt) as [day],cast(startdt as datetime) as [datetime], COUNT(*),ipaddress from visit Group By YEAR(startdt), MONTH(startdt),day(startdt),startdt,ipaddress", con);
SqlCommandBuilder cb = new SqlCommandBuilder(da);
DataSet ds = new DataSet();
da.Fill(ds, "normalpackage");

for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
    adds.Add(ds.Tables[0].Rows[i].ItemArray[0].ToString());
}
dataGridView1.DataSource = ds;
bindingSource1.DataSource = ds;
dataGridView1.Visible = true;

Posted 28-Mar-14 22:53pm

S.Rajendran from Coimbatore

Updated 29-Mar-14 17:47pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 29-Mar-14 23:49pm

While debugging see if the DataSet ds is having rows or not by hovering on it.

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Krunal Rohit · Answer 1 · 2014-03-29T21:40:00

You must use DataBind(), after assigning datasource to gridview. See the code below,

C#

List<string> adds = new List<string>();
SqlDataAdapter da = new SqlDataAdapter("seLECT YEAR(startdt) AS [Year],MONTH(startdt) AS [Month], DAY(startdt) as [day],cast(startdt as datetime) as [datetime], COUNT(*),ipaddress from visit Group By YEAR(startdt), MONTH(startdt),day(startdt),startdt,ipaddress", con);
SqlCommandBuilder cb = new SqlCommandBuilder(da);
DataSet ds = new DataSet();
da.Fill(ds, "normalpackage");
 
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
    adds.Add(ds.Tables[0].Rows[i].ItemArray[0].ToString());
}
dataGridView1.DataSource = ds;
dataGridView1.DataBind();
bindingSource1.DataSource = ds;
dataGridView1.Visible = true;</string></string>

-KR