Hi to add rows and columns to Gridveiw dynamically what
we will do is that
1) Create a DataTable object to which than we will bind the GridView
DataTable dt=new DataTable();
2) IF you need two columns than create two DataColumn object
DataColumn dCol1=new DataColumn(FirstC, typeof(System.String)); // string FirstC=”column1″
DataColumn dCol2=new DataColumn(SecondC, typeof(System.String)); // string SecondC=”column2″
Add it to the table
dt.Columns.Add(dCol1);
dt.Columns.Add(dCol2);
3)Run the loop for as many rows you want to add.
// say you want to add two rows
for(int i=0;i<2;i++)
{
DataRow row1 = dt.NewRow();
row1 [FirstC] = “One”;
row1 [SecondC] =”Two”
dt.Rows.Add(row1 );
}
Now iterate through each datacolumn and create a BoundField foreach column
foreach (DataColumn col in dt.Columns)
{
BoundField bField = new BoundField
bField.DataField = col.ColumnName;
bField.HeaderText = col.ColumnName;
GridView1.Columns.Add(bField);
}
GridView1.DataSource = dt;
//Bind the datatable with the GridView.
GridView1.DataBind();
Nishant Rana's Weblog 
Hello,
Adding Cols & rows Dynamically in the GridView is good one.
But here I m facing one problem.
As I have DataTable dt with the column as follows
dt[“Sales-1001”] = 85
dt[“Expiry-1001”] = 90
dt[“Sales-1002”] = 66
dt[“Expiry-1002”] = 44
Now I have bind the columns as u told above
but here I want the Column.Header text is different.
so I did :
foreach (DataColumn dcol in dt.Columns)
{
BoundField bField = new BoundField();
bField.DataField = dcol.ColumnName;
bField.HeaderText = dcol.ColumnName.ToString().Substring(0, dcol.ColumnName.LastIndexOf(‘-‘));
GridView1.Columns.Add(bField);
}
GridView1.DataSource = dt;
GridView1.DataBind();
But is is giving me double Columns Attached to GridView.
Which have header Sales,Expiry,Sales,Expiry,Sales-1001,Expiry-1001,Sales-1002,Expiry-1002 like this
it is showing boud field name too in the header.
what to do..Suggest
Tnx.
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Just Include the lign below befopre setting the datasource.
GridView1.AutoGenerateColumns = false;
While creating a dynamic gridview you might have left the autogeneratecolumns property to true, which actually renders all the columns of the of the source datable irrespective of any bound columns created during runtime.
I hope it works for you.
Happy Programming!
Arvind
HookLogic Inc
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How to add Template Fields in GridView?
Bound Fields is OK but I wanna add ItemTemplateField. Please . . .
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string[] fields = new string[] { “Icon”, “Name”, “ToolTip”, “Document”};
foreach (string field in fields)
{
TemplateField customField = new TemplateField();
customField.ShowHeader = false;
customField.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, field, tempGrid.ID, this.Page);
tempGrid.Columns.Add(customField);
}
You have to implement your own GridViewTemplate class, send me a mail if you want mine.
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How to add a row to a gridview using javascript?
consider that when page loaded gridview dont have any rows and it will not be displayed.
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Who are you ?
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hello … can u help me with a problem similar to this… i have a page in vb , it has a gridview . i want the gridview to generate a number of columns which is equal to a query of record count from a database…
i mean gridviewcolumns= record count .
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must be deleted.
deleted123
best deltes delete this post
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i am confused with small application i want to transfer textbox,dropdownlist,fileupload values to gridview when clicking “transfer button” … beside that one colum (it could be templatefield with delete button or command field ‘delete’) will be added dynamically for each row .. how to do that??????
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Email
Website
Your response
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I need my dynamically populated Grid View be sortable. I did all that as explaineed here, and I set AllowSortin attribute to true. But when I click column header I get an error: “The GridView ‘GridView1’ fired event Sorting which wasn’t handled”. Please help – thanks.
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Hi
how to show report in two columns in a page e.g. question paper displayed like Q1,2,3,4,5 in one column and second column display next 5 question for one page
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how can i delete a single row or column by using above code
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I want to add a row of checkboxes beneath the Gridview header row. The user will check the boxes of columns they want to hide. There will be a button to reveal all the columns again. The checkbox function I can figure out, but do you have any ideas for adding that row of checkboxes?
Thanks
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really very nice code…
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a
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Set “allowpaging=true” and “pagesize=X” (change X to how many rows you want visible).
In the above single line i want columns and not rows to visible ,how can i show columns . X for columns , currently it is fixed to 1 columns remain 1 while we can change row . i want row to be 1 and columns as X.
Where can i do this in gridview ..?
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