使用JavaScript的网格中的金额不应小于0

Question

When I go to Insert first record into the gridview . What I want is, My Amount column should not be 0 or less than that.

Here is what my code looks like.

function checkAgrmVal() {
        for (var i = 0; i < GridPayInfo.Rows.length; i++) {
            var AgrmntAmt = GridPayInfo.Rows[i].Cells[5].Value;
            alert(AgrmntAmt);
            if (AgrmntAmt <= "0") {
                alert('Agreement amount cannot be 0 or less than 0');
                return false;
            }
        }
    }

It doesn't works when I go to add the first row, but it does work when I go to add the second row.

Answer 1

• To get table rows use GridPayInfo.rows[i].cells[5] not Rows and Cells
• To get Cell content use innerText , textContent to get text or innerHTML to get HTML not .Value .
• .Value should be .value that works with input and textarea.

So Your example should work see below code:

 function checkAgrmVal() { var GridPayInfo = document.getElementById("tbl"); for (var i = 0; i < GridPayInfo.rows.length; i++) { var AgrmntAmt = GridPayInfo.rows[i].cells[5].innerText; if (AgrmntAmt <= "0") { alert('Agreement amount cannot be 0 or less than 0 found in row: '+ (+i+1)); return false; } } } 

 <table id='tbl'> <tr><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td><td>-1</td></tr> <tr><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td><td>5</td></tr> <tr><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td><td>-3</td></tr> <tr><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td><td>-4</td></tr> <tr><td>a</td><td>b</td><td>c</td><td>d</td><td>e</td><td>3</td></tr> </table> <button onclick='checkAgrmVal()'>check</button>