Databases
StackOverflow2013
Postsdbo
POThere is no row at position 0.
 

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plurals
  1. POThere is no row at position 0.
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    <p>I'm creating a web page where the user can edit information in the <code>DataGrid</code> but I keep getting this error: </p> <blockquote> <p>Exception Details: System.IndexOutOfRangeException: There is no row at position 0.</p> </blockquote> <p>This is my code :</p> <pre><code>protected void Page_Load(object sender, EventArgs e) { Label lblProj = this.Master.FindControl("lblProj") as Label; Label lblStr = this.Master.FindControl("lblStruct") as Label; if (Session["projCode"] == null &amp;&amp; Session["structCode"] == null) { Response.Redirect("frmSignIn.aspx"); } else { FillGrid(); lblProj.Text = cbal.getField("Project_View", "@PrjM_id_int", Session["projCode"].ToString(), "NameByCode"); string[,] paramVal = new string[2, 2]; paramVal[0, 0] = "@sd_Code_var"; paramVal[0, 1] = Session["structCode"].ToString(); paramVal[1, 0] = "@Sd_ProjectCode_var"; paramVal[1, 1] = Session["projCode"].ToString(); DataSet ds = cbal.fillGrid_with_param("Structure_Definition_GetStrctureName", paramVal); lblStr.Text = ds.Tables[0].Rows[0]["STRUCTURE NAME"].ToString(); } if (!IsPostBack) { FillContQuot(); FillContractor(); } // drpContractorName.SelectedIndexChanged += new EventHandler(drpContractorName_SelectedIndexChanged); } protected void drpContractorName_SelectedIndexChanged(object sender, EventArgs e) { SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["CQRA"].ConnectionString); SqlCommand cmd = new SqlCommand("select * from tbl_Contractor_Master where CNT_Code_var =' " + drpContractorName.SelectedValue.ToString() + " '", conn); conn.Open(); SqlDataReader dr = cmd.ExecuteReader(); int count = 0; Label1.Visible = true; while (dr.Read()) { count++; } if (count &gt; 0) { Label1.Text = "This Contractor Not Available"; } else { Label1.Text = "This Contractor Already Exist"; } //Label1.Visible = false; } private void FillContractor() { string[,] paramVal2 = new string[1, 2]; paramVal2[0, 0] = "@CNT_Id_int"; paramVal2[0, 1] = "-1"; DataSet ds = cbal.fillGrid_with_param("Contractor_Master_view", paramVal2); Dictionary&lt;string, string&gt; dct = new Dictionary&lt;string, string&gt;(); dct.Add("0", "Select"); { for (int i = 0; i &lt; ds.Tables[0].Rows.Count; i++) { dct.Add(ds.Tables[0].Rows[i]["CONTRACTOR CODE"].ToString(), ds.Tables[0].Rows[i]["CONTRACTOR NAME"].ToString()); } } drpContractorName.DataSource = dct; drpContractorName.DataValueField = "Key"; drpContractorName.DataTextField = "Value"; drpContractorName.DataBind(); } private void FillContQuot() { string[,] paramVal2 = new string[1, 2]; paramVal2[0, 0] = "@CQ_ID_int"; paramVal2[0, 1] = "-1"; DataSet ds = cbal.fillGrid_with_param("contract_Quotaionapply", paramVal2); Dictionary&lt;string, string&gt; dct = new Dictionary&lt;string, string&gt;(); dct.Add("0", "Select"); for (int i = 0; i &lt; ds.Tables[0].Rows.Count; i++) { dct.Add(ds.Tables[0].Rows[i][0].ToString(), ds.Tables[0].Rows[i][0].ToString()); } drpConQuot.DataSource = dct; drpConQuot.DataValueField = "Key"; drpConQuot.DataTextField = "Value"; drpConQuot.DataBind(); } protected void DrpConQuotSelectedIndexChanged(object sender, EventArgs e) { lblMsg.Text = ""; if (drpConQuot.SelectedIndex != 0) { FillGrid(); btnsave.Visible = true; } else { grdQuotation.DataSource = null; grdQuotation.DataBind(); } } protected void DrpContractorNameSelectedIndexChanged(object sender, EventArgs e) { SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["dbCQRA@12Sept2012TGConnectionString"].ConnectionString); SqlCommand cmd = new SqlCommand("select * from tbl_Contractor_Master where CNT_Code_var =' " + drpContractorName.SelectedValue.ToString() + " '", conn); conn.Open(); SqlDataReader dr = cmd.ExecuteReader(); int count = 0; Label1.Visible = true; while (dr.Read()) { count++; } if (count &gt; 0) { Label1.Text = "Not Available"; } else { Label1.Text = "Available"; } } private void FillGrid() { string[,] param = new string[1,2]; Dictionary&lt;string, string&gt; key = new Dictionary&lt;string, string&gt;(); //item.Clear(); key.Add("0", "--Select--"); param[0, 0] = "@Quotation_code_Var"; try { param[0, 1] = drpConQuot.SelectedItem.Value; } catch { param[0, 1] = ""; } dsQuot = cbal.fillGrid_with_param("Quotation_Comparision", param); if (dsQuot.Tables.Count &lt;= 0) return; DataTable tab = new DataTable(); tab.Columns.Add("ITEM NAME"); for (int i = 0; i &lt; dsQuot.Tables.Count; i++) { try { tab.Columns.Add(dsQuot.Tables[i].Rows[0]["Contractor"].ToString().Split('/')[0]); } catch (Exception ex) { lblMsg.Text = ex.Message.ToString(); } } foreach (DataRow r1 in dsQuot.Tables[0].Rows) { DataRow r = tab.NewRow(); //for (int i = 0; i &lt; r1.ItemArray.Length - 1; i++) r[0] = r1[0].ToString(); tab.Rows.Add(r); } for (int i = 0; i &lt; dsQuot.Tables.Count; i++) { int c = 0; foreach (DataRow r1 in dsQuot.Tables[i].Rows) { tab.Rows[c][i+1] = r1[1].ToString(); c++; } } grdQuotation.DataSource = tab; grdQuotation.DataBind(); } protected void Btnsaveclick(object sender, EventArgs e) { try { string cotationno = drpConQuot.SelectedValue; string quot_AwardedTo = drpContractorName.SelectedValue;//(r.Cells[r.Cells.Count - 2].FindControl("ddlName") as DropDownList).SelectedValue; string[,] para = new string[2, 2]; para[0, 0] = "@quot_no_int"; para[1, 0] = "@quot_AwardedTo"; para[0, 1] = cotationno; para[1, 1] = quot_AwardedTo; cbal.fillGrid_with_param("Contract_AwardedTo", para); lblMsg.Text = "Records Saved!"; } catch(Exception e1) { lblMsg.Text = e1.Message; } } protected void GridView1RowCreated(object sender, GridViewRowEventArgs e) { } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USPicrofo Software
    1. USRashmi Sargar
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POThere is no row at position 0.
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. POThere is no row at position 0.
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POThere is no row at position 0.
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. This table or related slice is empty.
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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