find a textbox of a gridview using javascript

Question

Hi I am inserting a data in gridview row. I have 2 textbox's 1 label and 1 textbox respectively. Here I want to do calculations on data which is in first two textboxes and result should be displayed in label and the text in label to be multiplied with 40 and that should be displayed in last textbox. This operation to be done in onblur() event of second textbox. To do this I need to find the controls in gridview in onblur() event of the textbox. I tried to do this in .cs file but this operation is to be done before inserting in to database on that particular row of gridview. I searched on the net but i couldn't find the solution. I couldn't know how to find textbox of a gridview using javascript Please help me.....

Manikavelu Velayutham · Answer

Sample code that is used to loop through the gridview in javascript. Below code is generally used to find the check box and make it to be checked. Like that you can easily find the textbox in the grdview. function SelectAll(SelBtn) { var gvET = document.getElementById(GridView1); var rCount = gvET.rows.length; var btnSel = SelBtn.value; var rowIdx; // check the Page Count is greater than 1 then rowindex will start from 2 else 1 if(document.getElementById(hidgridpagecount).value>1) { rowIdx=2; } else { rowIdx=1; } for (rowIdx; rowIdx { var rowElement = gvET.rows[rowIdx]; var chkBox = rowElement.cells[0].firstChild; if (btnSel == 'Select All') { chkBox.checked = true; } else { chkBox.checked = false; } } if (btnSel == 'Select All') { document.getElementById('btnSelAll_Top').value =Deselect All; document.getElementById('btnSelAll_Bot').value =Deselect All; } else { document.getElementById('btnSelAll_Top').value =Select All; document.getElementById('btnSelAll_Bot').value =Select All; } return false; }

Manikavelu Velayutham · Answer

GridView will be rendered as Table in HTML. You can view the rendered HTML through the view source in Browser. You can get the table name in view source page. Using that you can get the textbox control. You should loop through the entire table to find the controls. There you can implement your logic.