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Questionproblem in cast value from money to decimal Pin
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Questionasp.net grid view [modified] Pin
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Questionproblem in updating database via datagrid Pin
rosae61914-Mar-09 21:28
rosae61914-Mar-09 21:28 
hello sir/madam
i have following code for updating database via datagrid control,,but it produces an error..can anybody tell me how to deal with this kind of error..


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SqlConnection connector = new SqlConnection(@"Server=localhost;Integrated Security=SSPI;Database=cms");
String strsql;
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
BindDataGrid();

}
void BindDataGrid()
{
SqlCommand cmdsql = new SqlCommand("Select * from studentmarksentry", connector);
connector.Open();
unittest1marksentry_datagrid.DataSource = cmdsql.ExecuteReader();
unittest1marksentry_datagrid.DataBind();
connector.Close();

}

void CancelCommand(Object sender, DataGridCommandEventArgs e)
{
unittest1marksentry_datagrid.EditItemIndex = -1;
BindDataGrid();
}
void EditCommand(Object sender, DataGridCommandEventArgs e)
{
unittest1marksentry_datagrid.EditItemIndex = e.Item.ItemIndex;
BindDataGrid();

}
void UpdateCommand(Object sender, DataGridCommandEventArgs e)
{
int regd_num;

String txtvalueholder;

if (IsValid)
{
regd_num=(int)unittest1marksentry_datagrid.DataKeys[e.Item.ItemIndex];
TextBox txtmarksentry = (TextBox)e.Item.FindControl("txtmarksentry");
txtvalueholder = txtmarksentry.Text;
strsql = "update studentmarksentry set MarksObtained=@marksentry where Regdno=@register";
SqlCommand cmdsql = new SqlCommand(strsql, connector);
cmdsql.Parameters.Add("@marksentry", txtvalueholder);
cmdsql.Parameters.Add("@register", regd_num);
connector.Open();
cmdsql.ExecuteNonQuery();
connector.Close();
unittest1marksentry_datagrid.EditItemIndex = -1;
BindDataGrid();

}

}






<title>Unit-Test 1 marks Entry form



<asp:datagrid id="unittest1marksentry_datagrid" autogeneratecolumns="false" oncancelcommand="CancelCommand" oneditcommand="EditCommand" xmlns:asp="#unknown">
OnUpdateCommand="UpdateCommand" runat="server">
<columns> <asp:boundcolumn headertext="Register No" datafield="Regdno" readonly="true">
<asp:boundcolumn headertext="First Name" datafield="First name" readonly="true">
<asp:boundcolumn headertext="Middle Name" datafield="Middle name" readonly="true">
<asp:boundcolumn headertext="Last Name" datafield="Last name" readonly="true">
<asp:templatecolumn>
<headertemplate>
Marks Obtained
<itemtemplate>
<%#DataBinder.Eval(Container.DataItem,"MarksObtained") %>

<edititemtemplate>
<asp:textbox id="txtmarksentry" text="<%#DataBinder.Eval(Container.DataItem," marksobtained")="" %&gt;"="">
runat="server">
<asp:comparevalidator id="unittest1marksentry_comparevalidator" controltovalidate="txtmarksentry">
Display="Dynamic" Text="must be a number" Operator="DataTypeCheck" Type="Integer"
runat="Server">


<asp:editcommandcolumn edittext="Edit" updatetext="Update" canceltext="Cancel">




here my database name is cms and try to update the marks obatined column but i get following error
:Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
ok
waiting for the reply.
AnswerRe: problem in updating database via datagrid Pin
Christian Graus14-Mar-09 21:44
protectorChristian Graus14-Mar-09 21:44 
Questioncan onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
Alok Sharma ji14-Mar-09 11:49
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AnswerRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
Christian Graus14-Mar-09 12:16
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GeneralRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
Alok Sharma ji14-Mar-09 15:28
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GeneralRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
N a v a n e e t h14-Mar-09 16:32
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GeneralRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
Christian Graus14-Mar-09 21:43
protectorChristian Graus14-Mar-09 21:43 
GeneralRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
N a v a n e e t h15-Mar-09 3:29
N a v a n e e t h15-Mar-09 3:29 
GeneralRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
Abhishek Sur14-Mar-09 21:58
professionalAbhishek Sur14-Mar-09 21:58 
AnswerRe: can onblur method of javascript is also possible in c#.net scripting i am trying it but it not works have any similar method there ? Pin
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QuestionLinkButton cann't work [modified] Pin
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AnswerRe: LinkButton cann't work Pin
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QuestionResize gridview column width dynamically like component art grid Pin
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QuestionAccessing listitem object collection... Pin
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